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annotate roundup/backends/back_gadfly.py @ 1156:d0da32fbdedc

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gadfly backend now complete can handle schema changes in non-Multilinks (though only one at a time at present)
author Richard Jones <richard@users.sourceforge.net>
date Mon, 16 Sep 2002 08:04:46 +0000
parents 81941abedb0a
children 14467c765167
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rev   line source
1156
d0da32fbdedc gadfly backend now complete
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parents: 1145
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1 # $Id: back_gadfly.py,v 1.21 2002-09-16 08:04:46 richard Exp $
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2 __doc__ = '''
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3 About Gadfly
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4 ============
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5
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6 Gadfly is a collection of python modules that provides relational
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7 database functionality entirely implemented in Python. It supports a
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8 subset of the intergalactic standard RDBMS Structured Query Language
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9 SQL.
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10
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11
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12 Basic Structure
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13 ===============
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14
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15 We map roundup classes to relational tables. Automatically detect schema
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16 changes and modify the gadfly table schemas appropriately. Multilinks
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17 (which represent a many-to-many relationship) are handled through
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18 intermediate tables.
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19
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20 Journals are stored adjunct to the per-class tables.
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21
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22 Table names and columns have "_" prepended so the names can't
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23 clash with restricted names (like "order"). Retirement is determined by the
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24 __retired__ column being true.
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25
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26 All columns are defined as VARCHAR, since it really doesn't matter what
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27 type they're defined as. We stuff all kinds of data in there ;) [as long as
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28 it's marshallable, gadfly doesn't care]
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29
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30
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31 Additional Instance Requirements
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32 ================================
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33
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34 The instance configuration must specify where the database is. It does this
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35 with GADFLY_DATABASE, which is used as the arguments to the gadfly.gadfly()
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36 method:
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37
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38 Using an on-disk database directly (not a good idea):
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39 GADFLY_DATABASE = (database name, directory)
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40
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41 Using a network database (much better idea):
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42 GADFLY_DATABASE = (policy, password, address, port)
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43
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44 Because multiple accesses directly to a gadfly database aren't handled, but
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45 multiple network accesses are, it's strongly advised that the latter setup be
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46 used.
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47
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48 '''
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49
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50 # standard python modules
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51 import sys, os, time, re, errno, weakref, copy
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52
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53 # roundup modules
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54 from roundup import hyperdb, date, password, roundupdb, security
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55 from roundup.hyperdb import String, Password, Date, Interval, Link, \
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56 Multilink, DatabaseError, Boolean, Number
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57
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58 # the all-important gadfly :)
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59 import gadfly
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60 import gadfly.client
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61 import gadfly.database
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62
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63 # support
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64 from blobfiles import FileStorage
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65 from roundup.indexer import Indexer
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66 from sessions import Sessions
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67
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68 class Database(FileStorage, hyperdb.Database, roundupdb.Database):
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69 # flag to set on retired entries
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70 RETIRED_FLAG = '__hyperdb_retired'
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71
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72 def __init__(self, config, journaltag=None):
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73 ''' Open the database and load the schema from it.
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74 '''
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75 self.config, self.journaltag = config, journaltag
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76 self.dir = config.DATABASE
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77 self.classes = {}
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78 self.indexer = Indexer(self.dir)
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79 self.sessions = Sessions(self.config)
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80 self.security = security.Security(self)
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81
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82 # additional transaction support for external files and the like
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83 self.transactions = []
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84
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85 db = getattr(config, 'GADFLY_DATABASE', ('database', self.dir))
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86 if len(db) == 2:
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87 # ensure files are group readable and writable
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88 os.umask(0002)
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89 try:
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90 self.conn = gadfly.gadfly(*db)
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91 except IOError, error:
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92 if error.errno != errno.ENOENT:
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93 raise
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94 self.database_schema = {}
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95 self.conn = gadfly.gadfly()
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96 self.conn.startup(*db)
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97 cursor = self.conn.cursor()
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98 cursor.execute('create table schema (schema varchar)')
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99 cursor.execute('create table ids (name varchar, num integer)')
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100 else:
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101 cursor = self.conn.cursor()
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102 cursor.execute('select schema from schema')
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103 self.database_schema = cursor.fetchone()[0]
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104 else:
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105 self.conn = gadfly.client.gfclient(*db)
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106 cursor = self.conn.cursor()
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107 cursor.execute('select schema from schema')
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108 self.database_schema = cursor.fetchone()[0]
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109
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110 def __repr__(self):
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111 return '<roundfly 0x%x>'%id(self)
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112
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113 def post_init(self):
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114 ''' Called once the schema initialisation has finished.
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115
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116 We should now confirm that the schema defined by our "classes"
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117 attribute actually matches the schema in the database.
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118 '''
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119 # now detect changes in the schema
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120 for classname, spec in self.classes.items():
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121 if self.database_schema.has_key(classname):
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122 dbspec = self.database_schema[classname]
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123 self.update_class(spec, dbspec)
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124 self.database_schema[classname] = spec.schema()
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125 else:
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126 self.create_class(spec)
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127 self.database_schema[classname] = spec.schema()
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128
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129 for classname in self.database_schema.keys():
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130 if not self.classes.has_key(classname):
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diff changeset
131 self.drop_class(classname)
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diff changeset
132
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133 # update the database version of the schema
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134 cursor = self.conn.cursor()
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135 cursor.execute('delete from schema')
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136 cursor.execute('insert into schema values (?)', (self.database_schema,))
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137
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138 # reindex the db if necessary
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diff changeset
139 if self.indexer.should_reindex():
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diff changeset
140 self.reindex()
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141
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142 # commit
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143 self.conn.commit()
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diff changeset
144
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145 def reindex(self):
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146 for klass in self.classes.values():
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147 for nodeid in klass.list():
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148 klass.index(nodeid)
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diff changeset
149 self.indexer.save_index()
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diff changeset
150
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151 def determine_columns(self, properties):
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152 ''' Figure the column names and multilink properties from the spec
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153
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154 "properties" is a list of (name, prop) where prop may be an
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155 instance of a hyperdb "type" _or_ a string repr of that type.
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156 '''
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157 cols = []
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158 mls = []
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159 # add the multilinks separately
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160 for col, prop in properties:
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161 if isinstance(prop, Multilink):
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162 mls.append(col)
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163 elif isinstance(prop, type('')) and prop.find('Multilink') != -1:
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164 mls.append(col)
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165 else:
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166 cols.append('_'+col)
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167 cols.sort()
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168 return cols, mls
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169
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170 def update_class(self, spec, dbspec):
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171 ''' Determine the differences between the current spec and the
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diff changeset
172 database version of the spec, and update where necessary
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173 '''
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174 spec_schema = spec.schema()
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175 if spec_schema == dbspec:
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diff changeset
176 return
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177 if __debug__:
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178 print >>hyperdb.DEBUG, 'update_class FIRING'
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179
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180 # key property changed?
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181 if dbspec[0] != spec_schema[0]:
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182 if __debug__:
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183 print >>hyperdb.DEBUG, 'update_class setting keyprop', `spec[0]`
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184 # XXX turn on indexing for the key property
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185
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diff changeset
186 # dict 'em up
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187 spec_propnames,spec_props = [],{}
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188 for propname,prop in spec_schema[1]:
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189 spec_propnames.append(propname)
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190 spec_props[propname] = prop
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191 dbspec_propnames,dbspec_props = [],{}
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192 for propname,prop in dbspec[1]:
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193 dbspec_propnames.append(propname)
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194 dbspec_props[propname] = prop
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195
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diff changeset
196 # we're going to need one of these
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197 cursor = self.conn.cursor()
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198
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199 # now compare
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diff changeset
200 for propname in spec_propnames:
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diff changeset
201 prop = spec_props[propname]
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diff changeset
202 if dbspec_props.has_key(propname) and prop==dbspec_props[propname]:
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diff changeset
203 continue
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diff changeset
204 if __debug__:
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205 print >>hyperdb.DEBUG, 'update_class ADD', (propname, prop)
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206
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diff changeset
207 if not dbspec_props.has_key(propname):
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diff changeset
208 # add the property
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diff changeset
209 if isinstance(prop, Multilink):
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210 # all we have to do here is create a new table, easy!
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diff changeset
211 self.create_multilink_table(cursor, spec, propname)
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diff changeset
212 continue
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diff changeset
213
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diff changeset
214 # no ALTER TABLE, so we:
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diff changeset
215 # 1. pull out the data, including an extra None column
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diff changeset
216 oldcols, x = self.determine_columns(dbspec[1])
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217 oldcols.append('id')
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diff changeset
218 oldcols.append('__retired__')
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219 cn = spec.classname
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diff changeset
220 sql = 'select %s,? from _%s'%(','.join(oldcols), cn)
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diff changeset
221 if __debug__:
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diff changeset
222 print >>hyperdb.DEBUG, 'update_class', (self, sql, None)
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diff changeset
223 cursor.execute(sql, (None,))
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diff changeset
224 olddata = cursor.fetchall()
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diff changeset
225
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diff changeset
226 # 2. drop the old table
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diff changeset
227 cursor.execute('drop table _%s'%cn)
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diff changeset
228
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229 # 3. create the new table
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230 cols, mls = self.create_class_table(cursor, spec)
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diff changeset
231 # ensure the new column is last
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232 cols.remove('_'+propname)
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diff changeset
233 assert oldcols == cols, "Column lists don't match!"
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diff changeset
234 cols.append('_'+propname)
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diff changeset
235
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diff changeset
236 # 4. populate with the data from step one
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237 s = ','.join(['?' for x in cols])
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diff changeset
238 scols = ','.join(cols)
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diff changeset
239 sql = 'insert into _%s (%s) values (%s)'%(cn, scols, s)
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diff changeset
240
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diff changeset
241 # GAH, nothing had better go wrong from here on in... but
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diff changeset
242 # we have to commit the drop...
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diff changeset
243 self.conn.commit()
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diff changeset
244
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diff changeset
245 # we're safe to insert now
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diff changeset
246 if __debug__:
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diff changeset
247 print >>hyperdb.DEBUG, 'update_class', (self, sql, olddata)
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248 cursor.execute(sql, olddata)
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diff changeset
249
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250 else:
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diff changeset
251 # modify the property
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252 if __debug__:
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253 print >>hyperdb.DEBUG, 'update_class NOOP'
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diff changeset
254 pass # NOOP in gadfly
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255
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diff changeset
256 # and the other way - only worry about deletions here
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diff changeset
257 for propname in dbspec_propnames:
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diff changeset
258 prop = dbspec_props[propname]
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diff changeset
259 if spec_props.has_key(propname):
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diff changeset
260 continue
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diff changeset
261 if __debug__:
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diff changeset
262 print >>hyperdb.DEBUG, 'update_class REMOVE', `prop`
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diff changeset
263
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diff changeset
264 # delete the property
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diff changeset
265 if isinstance(prop, Multilink):
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diff changeset
266 sql = 'drop table %s_%s'%(spec.classname, prop)
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diff changeset
267 if __debug__:
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diff changeset
268 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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diff changeset
269 cursor.execute(sql)
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diff changeset
270 else:
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diff changeset
271 # no ALTER TABLE, so we:
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diff changeset
272 # 1. pull out the data, excluding the removed column
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diff changeset
273 oldcols, x = self.determine_columns(spec.properties.items())
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diff changeset
274 oldcols.append('id')
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diff changeset
275 oldcols.append('__retired__')
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diff changeset
276 # remove the missing column
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277 oldcols.remove('_'+propname)
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278 cn = spec.classname
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279 sql = 'select %s from _%s'%(','.join(oldcols), cn)
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280 cursor.execute(sql, (None,))
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281 olddata = sql.fetchall()
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282
1156
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283 # 2. drop the old table
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284 cursor.execute('drop table _%s'%cn)
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285
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diff changeset
286 # 3. create the new table
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287 cols, mls = self.create_class_table(self, cursor, spec)
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288 assert oldcols != cols, "Column lists don't match!"
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289
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diff changeset
290 # 4. populate with the data from step one
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291 qs = ','.join(['?' for x in cols])
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292 sql = 'insert into _%s values (%s)'%(cn, s)
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293 cursor.execute(sql, olddata)
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294
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295 def create_class_table(self, cursor, spec):
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296 ''' create the class table for the given spec
968
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297 '''
1156
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298 cols, mls = self.determine_columns(spec.properties.items())
968
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299
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300 # add on our special columns
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301 cols.append('id')
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302 cols.append('__retired__')
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303
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304 # create the base table
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305 scols = ','.join(['%s varchar'%x for x in cols])
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306 sql = 'create table _%s (%s)'%(spec.classname, scols)
968
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307 if __debug__:
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308 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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309 cursor.execute(sql)
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310
1156
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311 return cols, mls
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312
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313 def create_journal_table(self, cursor, spec):
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314 ''' create the journal table for a class given the spec and
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315 already-determined cols
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316 '''
968
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317 # journal table
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318 cols = ','.join(['%s varchar'%x
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319 for x in 'nodeid date tag action params'.split()])
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320 sql = 'create table %s__journal (%s)'%(spec.classname, cols)
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321 if __debug__:
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322 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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diff changeset
323 cursor.execute(sql)
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324
1156
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325 def create_multilink_table(self, cursor, spec, ml):
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326 ''' Create a multilink table for the "ml" property of the class
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327 given by the spec
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328 '''
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329 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%(
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330 spec.classname, ml)
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331 if __debug__:
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332 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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333 cursor.execute(sql)
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334
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335 def create_class(self, spec):
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diff changeset
336 ''' Create a database table according to the given spec.
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337 '''
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338 cursor = self.conn.cursor()
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339 cols, mls = self.create_class_table(cursor, spec)
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diff changeset
340 self.create_journal_table(cursor, spec)
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341
968
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342 # now create the multilink tables
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343 for ml in mls:
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344 self.create_multilink_table(cursor, spec, ml)
968
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345
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346 # ID counter
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347 sql = 'insert into ids (name, num) values (?,?)'
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348 vals = (spec.classname, 1)
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349 if __debug__:
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350 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals)
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351 cursor.execute(sql, vals)
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352
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353 def drop_class(self, spec):
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354 ''' Drop the given table from the database.
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355
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356 Drop the journal and multilink tables too.
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357 '''
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358 # figure the multilinks
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359 mls = []
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360 for col, prop in spec.properties.items():
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361 if isinstance(prop, Multilink):
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362 mls.append(col)
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diff changeset
363 cursor = self.conn.cursor()
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diff changeset
364
972
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diff changeset
365 sql = 'drop table _%s'%spec.classname
968
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diff changeset
366 if __debug__:
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parents:
diff changeset
367 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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parents:
diff changeset
368 cursor.execute(sql)
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parents:
diff changeset
369
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diff changeset
370 sql = 'drop table %s__journal'%spec.classname
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parents:
diff changeset
371 if __debug__:
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parents:
diff changeset
372 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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parents:
diff changeset
373 cursor.execute(sql)
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parents:
diff changeset
374
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parents:
diff changeset
375 for ml in mls:
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parents:
diff changeset
376 sql = 'drop table %s_%s'%(spec.classname, ml)
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parents:
diff changeset
377 if __debug__:
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parents:
diff changeset
378 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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parents:
diff changeset
379 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
380
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
381 #
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parents:
diff changeset
382 # Classes
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parents:
diff changeset
383 #
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parents:
diff changeset
384 def __getattr__(self, classname):
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parents:
diff changeset
385 ''' A convenient way of calling self.getclass(classname).
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parents:
diff changeset
386 '''
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parents:
diff changeset
387 if self.classes.has_key(classname):
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parents:
diff changeset
388 if __debug__:
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parents:
diff changeset
389 print >>hyperdb.DEBUG, '__getattr__', (self, classname)
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parents:
diff changeset
390 return self.classes[classname]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
391 raise AttributeError, classname
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
392
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parents:
diff changeset
393 def addclass(self, cl):
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parents:
diff changeset
394 ''' Add a Class to the hyperdatabase.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
395 '''
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parents:
diff changeset
396 if __debug__:
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parents:
diff changeset
397 print >>hyperdb.DEBUG, 'addclass', (self, cl)
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parents:
diff changeset
398 cn = cl.classname
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parents:
diff changeset
399 if self.classes.has_key(cn):
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parents:
diff changeset
400 raise ValueError, cn
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
401 self.classes[cn] = cl
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
402
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
403 def getclasses(self):
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parents:
diff changeset
404 ''' Return a list of the names of all existing classes.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
405 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
406 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
407 print >>hyperdb.DEBUG, 'getclasses', (self,)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
408 l = self.classes.keys()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
409 l.sort()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
410 return l
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
411
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
412 def getclass(self, classname):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
413 '''Get the Class object representing a particular class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
414
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
415 If 'classname' is not a valid class name, a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
416 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
417 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
418 print >>hyperdb.DEBUG, 'getclass', (self, classname)
1145
81941abedb0a nicer error message for invalid class lookup
Richard Jones <richard@users.sourceforge.net>
parents: 1143
diff changeset
419 try:
81941abedb0a nicer error message for invalid class lookup
Richard Jones <richard@users.sourceforge.net>
parents: 1143
diff changeset
420 return self.classes[classname]
81941abedb0a nicer error message for invalid class lookup
Richard Jones <richard@users.sourceforge.net>
parents: 1143
diff changeset
421 except KeyError:
81941abedb0a nicer error message for invalid class lookup
Richard Jones <richard@users.sourceforge.net>
parents: 1143
diff changeset
422 raise KeyError, 'There is no class called "%s"'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
423
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
424 def clear(self):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
425 ''' Delete all database contents.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
426
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
427 Note: I don't commit here, which is different behaviour to the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
428 "nuke from orbit" behaviour in the *dbms.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
429 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
430 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
431 print >>hyperdb.DEBUG, 'clear', (self,)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
432 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
433 for cn in self.classes.keys():
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
434 sql = 'delete from _%s'%cn
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
435 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
436 print >>hyperdb.DEBUG, 'clear', (self, sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
437 cursor.execute(sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
438
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
439 #
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
440 # Node IDs
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
441 #
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
442 def newid(self, classname):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
443 ''' Generate a new id for the given class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
444 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
445 # get the next ID
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
446 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
447 sql = 'select num from ids where name=?'
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
448 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
449 print >>hyperdb.DEBUG, 'newid', (self, sql, classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
450 cursor.execute(sql, (classname, ))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
451 newid = cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
452
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
453 # update the counter
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
454 sql = 'update ids set num=? where name=?'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
455 vals = (newid+1, classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
456 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
457 print >>hyperdb.DEBUG, 'newid', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
458 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
459
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
460 # return as string
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
461 return str(newid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
462
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
463 def setid(self, classname, setid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
464 ''' Set the id counter: used during import of database
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
465 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
466 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
467 sql = 'update ids set num=? where name=?'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
468 vals = (setid, spec.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
469 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
470 print >>hyperdb.DEBUG, 'setid', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
471 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
472
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
473 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
474 # Nodes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
475 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
476
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
477 def addnode(self, classname, nodeid, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
478 ''' Add the specified node to its class's db.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
479 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
480 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
481 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
482 # gadfly requires values for all non-multilink columns
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
483 cl = self.classes[classname]
1156
d0da32fbdedc gadfly backend now complete
Richard Jones <richard@users.sourceforge.net>
parents: 1145
diff changeset
484 cols, mls = self.determine_columns(cl.properties.items())
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
485
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
486 # default the non-multilink columns
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
487 for col, prop in cl.properties.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
488 if not isinstance(col, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
489 if not node.has_key(col):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
490 node[col] = None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
491
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
492 node = self.serialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
493
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
494 # make sure the ordering is correct for column name -> column value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
495 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
496 s = ','.join(['?' for x in cols]) + ',?,?'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
497 cols = ','.join(cols) + ',id,__retired__'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
498
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
499 # perform the inserts
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
500 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
501 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
502 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
503 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
504 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
505
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
506 # insert the multilink rows
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
507 for col in mls:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
508 t = '%s_%s'%(classname, col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
509 for entry in node[col]:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
510 sql = 'insert into %s (linkid, nodeid) values (?,?)'%t
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
511 vals = (entry, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
512 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
513 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
514 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
515
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
516 # make sure we do the commit-time extra stuff for this node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
517 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
518
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
519 def setnode(self, classname, nodeid, node, multilink_changes):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
520 ''' Change the specified node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
521 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
522 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
523 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, node)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
524 node = self.serialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
525
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
526 cl = self.classes[classname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
527 cols = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
528 mls = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
529 # add the multilinks separately
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
530 for col in node.keys():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
531 prop = cl.properties[col]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
532 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
533 mls.append(col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
534 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
535 cols.append('_'+col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
536 cols.sort()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
537
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
538 # make sure the ordering is correct for column name -> column value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
539 vals = tuple([node[col[1:]] for col in cols])
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
540 s = ','.join(['%s=?'%x for x in cols])
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
541 cols = ','.join(cols)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
542
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
543 # perform the update
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
544 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
545 sql = 'update _%s set %s'%(classname, s)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
546 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
547 print >>hyperdb.DEBUG, 'setnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
548 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
549
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
550 # now the fun bit, updating the multilinks ;)
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
551 for col, (add, remove) in multilink_changes.items():
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
552 tn = '%s_%s'%(classname, col)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
553 if add:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
554 sql = 'insert into %s (nodeid, linkid) values (?,?)'%tn
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
555 vals = [(nodeid, addid) for addid in add]
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
556 if __debug__:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
557 print >>hyperdb.DEBUG, 'setnode (add)', (self, sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
558 cursor.execute(sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
559 if remove:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
560 sql = 'delete from %s where nodeid=? and linkid=?'%tn
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
561 vals = [(nodeid, removeid) for removeid in remove]
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
562 if __debug__:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
563 print >>hyperdb.DEBUG, 'setnode (rem)', (self, sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
564 cursor.execute(sql, vals)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
565
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
566 # make sure we do the commit-time extra stuff for this node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
567 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
568
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
569 def getnode(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
570 ''' Get a node from the database.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
571 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
572 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
573 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
574 # figure the columns we're fetching
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
575 cl = self.classes[classname]
1156
d0da32fbdedc gadfly backend now complete
Richard Jones <richard@users.sourceforge.net>
parents: 1145
diff changeset
576 cols, mls = self.determine_columns(cl.properties.items())
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
577 scols = ','.join(cols)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
578
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
579 # perform the basic property fetch
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
580 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
581 sql = 'select %s from _%s where id=?'%(scols, classname)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
582 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
583 print >>hyperdb.DEBUG, 'getnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
584 cursor.execute(sql, (nodeid,))
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
585 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
586 values = cursor.fetchone()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
587 except gadfly.database.error, message:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
588 if message == 'no more results':
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
589 raise IndexError, 'no such %s node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
590 raise
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
591
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
592 # make up the node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
593 node = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
594 for col in range(len(cols)):
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
595 node[cols[col][1:]] = values[col]
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
596
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
597 # now the multilinks
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
598 for col in mls:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
599 # get the link ids
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
600 sql = 'select linkid from %s_%s where nodeid=?'%(classname, col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
601 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
602 print >>hyperdb.DEBUG, 'getnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
603 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
604 # extract the first column from the result
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
605 node[col] = [x[0] for x in cursor.fetchall()]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
606
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
607 return self.unserialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
608
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
609 def destroynode(self, classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
610 '''Remove a node from the database. Called exclusively by the
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
611 destroy() method on Class.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
612 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
613 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
614 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
615
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
616 # make sure the node exists
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
617 if not self.hasnode(classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
618 raise IndexError, '%s has no node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
619
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
620 # see if there's any obvious commit actions that we should get rid of
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
621 for entry in self.transactions[:]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
622 if entry[1][:2] == (classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
623 self.transactions.remove(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
624
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
625 # now do the SQL
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
626 cursor = self.conn.cursor()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
627 sql = 'delete from _%s where id=?'%(classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
628 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
629 print >>hyperdb.DEBUG, 'destroynode', (self, sql, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
630 cursor.execute(sql, (nodeid,))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
631
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
632 def serialise(self, classname, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
633 '''Copy the node contents, converting non-marshallable data into
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
634 marshallable data.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
635 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
636 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
637 print >>hyperdb.DEBUG, 'serialise', classname, node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
638 properties = self.getclass(classname).getprops()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
639 d = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
640 for k, v in node.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
641 # if the property doesn't exist, or is the "retired" flag then
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
642 # it won't be in the properties dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
643 if not properties.has_key(k):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
644 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
645 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
646
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
647 # get the property spec
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
648 prop = properties[k]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
649
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
650 if isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
651 d[k] = str(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
652 elif isinstance(prop, Date) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
653 d[k] = v.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
654 elif isinstance(prop, Interval) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
655 d[k] = v.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
656 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
657 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
658 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
659
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
660 def unserialise(self, classname, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
661 '''Decode the marshalled node data
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
662 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
663 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
664 print >>hyperdb.DEBUG, 'unserialise', classname, node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
665 properties = self.getclass(classname).getprops()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
666 d = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
667 for k, v in node.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
668 # if the property doesn't exist, or is the "retired" flag then
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
669 # it won't be in the properties dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
670 if not properties.has_key(k):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
671 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
672 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
673
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
674 # get the property spec
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
675 prop = properties[k]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
676
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
677 if isinstance(prop, Date) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
678 d[k] = date.Date(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
679 elif isinstance(prop, Interval) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
680 d[k] = date.Interval(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
681 elif isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
682 p = password.Password()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
683 p.unpack(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
684 d[k] = p
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
685 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
686 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
687 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
688
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
689 def hasnode(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
690 ''' Determine if the database has a given node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
691 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
692 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
693 sql = 'select count(*) from _%s where id=?'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
694 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
695 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
696 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
697 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
698
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
699 def countnodes(self, classname):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
700 ''' Count the number of nodes that exist for a particular Class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
701 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
702 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
703 sql = 'select count(*) from _%s'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
704 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
705 print >>hyperdb.DEBUG, 'countnodes', (self, sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
706 cursor.execute(sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
707 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
708
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
709 def getnodeids(self, classname, retired=0):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
710 ''' Retrieve all the ids of the nodes for a particular Class.
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
711
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
712 Set retired=None to get all nodes. Otherwise it'll get all the
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
713 retired or non-retired nodes, depending on the flag.
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
714 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
715 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
716 # flip the sense of the flag if we don't want all of them
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
717 if retired is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
718 retired = not retired
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
719 sql = 'select id from _%s where __retired__ <> ?'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720 if __debug__:
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
721 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
722 cursor.execute(sql, (retired,))
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
723 return [x[0] for x in cursor.fetchall()]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
724
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
725 def addjournal(self, classname, nodeid, action, params, creator=None,
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
726 creation=None):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
727 ''' Journal the Action
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
728 'action' may be:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
729
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
730 'create' or 'set' -- 'params' is a dictionary of property values
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
731 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
732 'retire' -- 'params' is None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
733 '''
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
734 # serialise the parameters now if necessary
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
735 if isinstance(params, type({})):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
736 if action in ('set', 'create'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
737 params = self.serialise(classname, params)
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
738
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
739 # handle supply of the special journalling parameters (usually
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
740 # supplied on importing an existing database)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
741 if creator:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
742 journaltag = creator
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
743 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
744 journaltag = self.journaltag
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
745 if creation:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
746 journaldate = creation.serialise()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
747 else:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
748 journaldate = date.Date().serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
749
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
750 # create the journal entry
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
751 cols = ','.join('nodeid date tag action params'.split())
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
752 entry = (nodeid, journaldate, journaltag, action, params)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
753
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
754 if __debug__:
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
755 print >>hyperdb.DEBUG, 'addjournal', entry
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
756
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
757 # do the insert
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
758 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
759 sql = 'insert into %s__journal (%s) values (?,?,?,?,?)'%(classname,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
760 cols)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
761 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
762 print >>hyperdb.DEBUG, 'addjournal', (self, sql, entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
763 cursor.execute(sql, entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
764
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
765 def getjournal(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
766 ''' get the journal for id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
767 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
768 # make sure the node exists
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
769 if not self.hasnode(classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
770 raise IndexError, '%s has no node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
771
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
772 # now get the journal entries
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
773 cols = ','.join('nodeid date tag action params'.split())
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
774 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
775 sql = 'select %s from %s__journal where nodeid=?'%(cols, classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
776 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
777 print >>hyperdb.DEBUG, 'getjournal', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
778 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
779 res = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
780 for nodeid, date_stamp, user, action, params in cursor.fetchall():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
781 res.append((nodeid, date.Date(date_stamp), user, action, params))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
782 return res
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
783
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
784 def pack(self, pack_before):
974
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
785 ''' Delete all journal entries except "create" before 'pack_before'.
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
786 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
787 # get a 'yyyymmddhhmmss' version of the date
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
788 date_stamp = pack_before.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
789
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
790 # do the delete
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
791 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
792 for classname in self.classes.keys():
974
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
793 sql = "delete from %s__journal where date<? and "\
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
794 "action<>'create'"%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
795 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
796 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
797 cursor.execute(sql, (date_stamp,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
798
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
799 def commit(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
800 ''' Commit the current transactions.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
801
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
802 Save all data changed since the database was opened or since the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
803 last commit() or rollback().
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
804 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
805 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
806 print >>hyperdb.DEBUG, 'commit', (self,)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
807
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
808 # commit gadfly
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
809 self.conn.commit()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
810
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
811 # now, do all the other transaction stuff
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
812 reindex = {}
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
813 for method, args in self.transactions:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
814 reindex[method(*args)] = 1
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
815
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
816 # reindex the nodes that request it
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
817 for classname, nodeid in filter(None, reindex.keys()):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
818 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
819 self.getclass(classname).index(nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
820
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
821 # save the indexer state
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
822 self.indexer.save_index()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
823
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
824 # clear out the transactions
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
825 self.transactions = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
826
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
827 def rollback(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
828 ''' Reverse all actions from the current transaction.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
829
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
830 Undo all the changes made since the database was opened or the last
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
831 commit() or rollback() was performed.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
832 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
833 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
834 print >>hyperdb.DEBUG, 'rollback', (self,)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
835
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
836 # roll back gadfly
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
837 self.conn.rollback()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
838
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
839 # roll back "other" transaction stuff
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
840 for method, args in self.transactions:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
841 # delete temporary files
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
842 if method == self.doStoreFile:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
843 self.rollbackStoreFile(*args)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
844 self.transactions = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
845
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
846 def doSaveNode(self, classname, nodeid, node):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
847 ''' dummy that just generates a reindex event
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
848 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
849 # return the classname, nodeid so we reindex this content
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
850 return (classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
851
1131
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
852 def close(self):
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
853 ''' Close off the connection.
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
854 '''
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
855 self.conn.close()
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
856
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
857 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
858 # The base Class class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
859 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
860 class Class(hyperdb.Class):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
861 ''' The handle to a particular class of nodes in a hyperdatabase.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
862
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
863 All methods except __repr__ and getnode must be implemented by a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
864 concrete backend Class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
865 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
866
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
867 def __init__(self, db, classname, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
868 '''Create a new class with a given name and property specification.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
869
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
870 'classname' must not collide with the name of an existing class,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
871 or a ValueError is raised. The keyword arguments in 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
872 must map names to property objects, or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
873 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
874 if (properties.has_key('creation') or properties.has_key('activity')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
875 or properties.has_key('creator')):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
876 raise ValueError, '"creation", "activity" and "creator" are '\
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
877 'reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
878
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
879 self.classname = classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
880 self.properties = properties
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
881 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
882 self.key = ''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
883
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
884 # should we journal changes (default yes)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
885 self.do_journal = 1
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
886
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
887 # do the db-related init stuff
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
888 db.addclass(self)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
889
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
890 self.auditors = {'create': [], 'set': [], 'retire': []}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
891 self.reactors = {'create': [], 'set': [], 'retire': []}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
892
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
893 def schema(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
894 ''' A dumpable version of the schema that we can store in the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
895 database
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
896 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
897 return (self.key, [(x, repr(y)) for x,y in self.properties.items()])
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
898
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
899 def enableJournalling(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
900 '''Turn journalling on for this class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
901 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
902 self.do_journal = 1
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
903
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
904 def disableJournalling(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
905 '''Turn journalling off for this class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
906 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
907 self.do_journal = 0
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
908
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
909 # Editing nodes:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
910 def create(self, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
911 ''' Create a new node of this class and return its id.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
912
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
913 The keyword arguments in 'propvalues' map property names to values.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
914
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
915 The values of arguments must be acceptable for the types of their
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
916 corresponding properties or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
917
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
918 If this class has a key property, it must be present and its value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
919 must not collide with other key strings or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
920
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
921 Any other properties on this class that are missing from the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
922 'propvalues' dictionary are set to None.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
923
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
924 If an id in a link or multilink property does not refer to a valid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
925 node, an IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
926 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
927 if propvalues.has_key('id'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
928 raise KeyError, '"id" is reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
929
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
930 if self.db.journaltag is None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
931 raise DatabaseError, 'Database open read-only'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
932
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
933 if propvalues.has_key('creation') or propvalues.has_key('activity'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
934 raise KeyError, '"creation" and "activity" are reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
935
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
936 self.fireAuditors('create', None, propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
937
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
938 # new node's id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
939 newid = self.db.newid(self.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
940
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
941 # validate propvalues
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
942 num_re = re.compile('^\d+$')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
943 for key, value in propvalues.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
944 if key == self.key:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
945 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
946 self.lookup(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
947 except KeyError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
948 pass
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
949 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
950 raise ValueError, 'node with key "%s" exists'%value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
951
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
952 # try to handle this property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
953 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
954 prop = self.properties[key]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
955 except KeyError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
956 raise KeyError, '"%s" has no property "%s"'%(self.classname,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
957 key)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
958
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
959 if value is not None and isinstance(prop, Link):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
960 if type(value) != type(''):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
961 raise ValueError, 'link value must be String'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
962 link_class = self.properties[key].classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
963 # if it isn't a number, it's a key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
964 if not num_re.match(value):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
965 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
966 value = self.db.classes[link_class].lookup(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
967 except (TypeError, KeyError):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
968 raise IndexError, 'new property "%s": %s not a %s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
969 key, value, link_class)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
970 elif not self.db.getclass(link_class).hasnode(value):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
971 raise IndexError, '%s has no node %s'%(link_class, value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
972
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
973 # save off the value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
974 propvalues[key] = value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
975
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
976 # register the link with the newly linked node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
977 if self.do_journal and self.properties[key].do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
978 self.db.addjournal(link_class, value, 'link',
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
979 (self.classname, newid, key))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
980
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
981 elif isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
982 if type(value) != type([]):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
983 raise TypeError, 'new property "%s" not a list of ids'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
984
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
985 # clean up and validate the list of links
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
986 link_class = self.properties[key].classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
987 l = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
988 for entry in value:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
989 if type(entry) != type(''):
1049
Richard Jones <richard@users.sourceforge.net>
parents: 1045
diff changeset
990 raise ValueError, '"%s" multilink value (%r) '\
1045
0564eb2f4bda better error message
Richard Jones <richard@users.sourceforge.net>
parents: 1038
diff changeset
991 'must contain Strings'%(key, value)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
992 # if it isn't a number, it's a key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
993 if not num_re.match(entry):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
994 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
995 entry = self.db.classes[link_class].lookup(entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
996 except (TypeError, KeyError):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
997 raise IndexError, 'new property "%s": %s not a %s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
998 key, entry, self.properties[key].classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
999 l.append(entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1000 value = l
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1001 propvalues[key] = value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1002
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1003 # handle additions
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1004 for nodeid in value:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1005 if not self.db.getclass(link_class).hasnode(nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1006 raise IndexError, '%s has no node %s'%(link_class,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1007 nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1008 # register the link with the newly linked node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1009 if self.do_journal and self.properties[key].do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1010 self.db.addjournal(link_class, nodeid, 'link',
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1011 (self.classname, newid, key))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1012
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1013 elif isinstance(prop, String):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1014 if type(value) != type(''):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1015 raise TypeError, 'new property "%s" not a string'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1016
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1017 elif isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1018 if not isinstance(value, password.Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1019 raise TypeError, 'new property "%s" not a Password'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1020
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1021 elif isinstance(prop, Date):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1022 if value is not None and not isinstance(value, date.Date):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1023 raise TypeError, 'new property "%s" not a Date'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1024
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1025 elif isinstance(prop, Interval):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1026 if value is not None and not isinstance(value, date.Interval):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1027 raise TypeError, 'new property "%s" not an Interval'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1028
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1029 elif value is not None and isinstance(prop, Number):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1030 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1031 float(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1032 except ValueError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1033 raise TypeError, 'new property "%s" not numeric'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1034
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1035 elif value is not None and isinstance(prop, Boolean):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1036 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1037 int(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1038 except ValueError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1039 raise TypeError, 'new property "%s" not boolean'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1040
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1041 # make sure there's data where there needs to be
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1042 for key, prop in self.properties.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1043 if propvalues.has_key(key):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1044 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1045 if key == self.key:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1046 raise ValueError, 'key property "%s" is required'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1047 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1048 propvalues[key] = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1049 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1050 propvalues[key] = None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1051
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1052 # done
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1053 self.db.addnode(self.classname, newid, propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1054 if self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1055 self.db.addjournal(self.classname, newid, 'create', propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1056
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1057 self.fireReactors('create', newid, None)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1058
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1059 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1060
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1061 def export_list(self, propnames, nodeid):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1062 ''' Export a node - generate a list of CSV-able data in the order
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1063 specified by propnames for the given node.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1064 '''
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1065 properties = self.getprops()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1066 l = []
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1067 for prop in propnames:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1068 proptype = properties[prop]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1069 value = self.get(nodeid, prop)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1070 # "marshal" data where needed
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1071 if value is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1072 pass
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1073 elif isinstance(proptype, hyperdb.Date):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1074 value = value.get_tuple()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1075 elif isinstance(proptype, hyperdb.Interval):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1076 value = value.get_tuple()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1077 elif isinstance(proptype, hyperdb.Password):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1078 value = str(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1079 l.append(repr(value))
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1080 return l
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1081
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1082 def import_list(self, propnames, proplist):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1083 ''' Import a node - all information including "id" is present and
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1084 should not be sanity checked. Triggers are not triggered. The
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1085 journal should be initialised using the "creator" and "created"
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1086 information.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1087
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1088 Return the nodeid of the node imported.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1089 '''
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1090 if self.db.journaltag is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1091 raise DatabaseError, 'Database open read-only'
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1092 properties = self.getprops()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1093
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1094 # make the new node's property map
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1095 d = {}
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1096 for i in range(len(propnames)):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1097 # Use eval to reverse the repr() used to output the CSV
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1098 value = eval(proplist[i])
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1099
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1100 # Figure the property for this column
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1101 propname = propnames[i]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1102 prop = properties[propname]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1103
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1104 # "unmarshal" where necessary
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1105 if propname == 'id':
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1106 newid = value
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1107 continue
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1108 elif value is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1109 # don't set Nones
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1110 continue
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1111 elif isinstance(prop, hyperdb.Date):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1112 value = date.Date(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1113 elif isinstance(prop, hyperdb.Interval):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1114 value = date.Interval(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1115 elif isinstance(prop, hyperdb.Password):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1116 pwd = password.Password()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1117 pwd.unpack(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1118 value = pwd
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1119 d[propname] = value
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1120
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1121 # extract the extraneous journalling gumpf and nuke it
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1122 if d.has_key('creator'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1123 creator = d['creator']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1124 del d['creator']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1125 if d.has_key('creation'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1126 creation = d['creation']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1127 del d['creation']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1128 if d.has_key('activity'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1129 del d['activity']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1130
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1131 # add the node and journal
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1132 self.db.addnode(self.classname, newid, d)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1133 self.db.addjournal(self.classname, newid, 'create', d, creator,
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1134 creation)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1135 return newid
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1136
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1137 _marker = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1138 def get(self, nodeid, propname, default=_marker, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1139 '''Get the value of a property on an existing node of this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1140
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1141 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1142 IndexError is raised. 'propname' must be the name of a property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1143 of this class or a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1144
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1145 'cache' indicates whether the transaction cache should be queried
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1146 for the node. If the node has been modified and you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1147 determine what its values prior to modification are, you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1148 set cache=0.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1149 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1150 if propname == 'id':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1151 return nodeid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1152
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1153 if propname == 'creation':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1154 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1155 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1156 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1157 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1158 return self.db.getjournal(self.classname, nodeid)[0][1]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1159 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1160 # on the strange chance that there's no journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1161 return date.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1162 if propname == 'activity':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1163 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1164 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1165 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1166 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1167 return self.db.getjournal(self.classname, nodeid)[-1][1]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1168 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1169 # on the strange chance that there's no journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1170 return date.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1171 if propname == 'creator':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1172 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1173 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1174 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1175 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1176 name = self.db.getjournal(self.classname, nodeid)[0][2]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1177 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1178 return None
1022
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1179 try:
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1180 return self.db.user.lookup(name)
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1181 except KeyError:
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1182 # the journaltag user doesn't exist any more
1025
Richard Jones <richard@users.sourceforge.net>
parents: 1022
diff changeset
1183 return None
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1184
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1185 # get the property (raises KeyErorr if invalid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1186 prop = self.properties[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1187
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1188 # get the node's dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1189 d = self.db.getnode(self.classname, nodeid) #, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1190
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1191 if not d.has_key(propname):
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1192 if default is self._marker:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1193 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1194 return []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1195 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1196 return None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1197 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1198 return default
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1199
1014
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1200 # don't pass our list to other code
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1201 if isinstance(prop, Multilink):
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1202 return d[propname][:]
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1203
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1204 return d[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1205
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1206 def getnode(self, nodeid, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1207 ''' Return a convenience wrapper for the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1208
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1209 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1210 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1211
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1212 'cache' indicates whether the transaction cache should be queried
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1213 for the node. If the node has been modified and you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1214 determine what its values prior to modification are, you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1215 set cache=0.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1216 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1217 return Node(self, nodeid, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1218
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1219 def set(self, nodeid, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1220 '''Modify a property on an existing node of this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1221
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1222 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1223 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1224
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1225 Each key in 'propvalues' must be the name of a property of this
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1226 class or a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1227
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1228 All values in 'propvalues' must be acceptable types for their
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1229 corresponding properties or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1230
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1231 If the value of the key property is set, it must not collide with
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1232 other key strings or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1233
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1234 If the value of a Link or Multilink property contains an invalid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1235 node id, a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1236 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1237 if not propvalues:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1238 return propvalues
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1239
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1240 if propvalues.has_key('creation') or propvalues.has_key('activity'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1241 raise KeyError, '"creation" and "activity" are reserved'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1242
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1243 if propvalues.has_key('id'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1244 raise KeyError, '"id" is reserved'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1245
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1246 if self.db.journaltag is None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1247 raise DatabaseError, 'Database open read-only'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1248
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1249 self.fireAuditors('set', nodeid, propvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1250 # Take a copy of the node dict so that the subsequent set
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1251 # operation doesn't modify the oldvalues structure.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1252 # XXX used to try the cache here first
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1253 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1254
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1255 node = self.db.getnode(self.classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1256 if self.is_retired(nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1257 raise IndexError
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1258 num_re = re.compile('^\d+$')
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1259
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1260 # if the journal value is to be different, store it in here
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1261 journalvalues = {}
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1262
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1263 # remember the add/remove stuff for multilinks, making it easier
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1264 # for the Database layer to do its stuff
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1265 multilink_changes = {}
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1266
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1267 for propname, value in propvalues.items():
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1268 # check to make sure we're not duplicating an existing key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1269 if propname == self.key and node[propname] != value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1270 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1271 self.lookup(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1272 except KeyError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1273 pass
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1274 else:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1275 raise ValueError, 'node with key "%s" exists'%value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1276
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1277 # this will raise the KeyError if the property isn't valid
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1278 # ... we don't use getprops() here because we only care about
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1279 # the writeable properties.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1280 prop = self.properties[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1281
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1282 # if the value's the same as the existing value, no sense in
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1283 # doing anything
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1284 if node.has_key(propname) and value == node[propname]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1285 del propvalues[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1286 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1287
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1288 # do stuff based on the prop type
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1289 if isinstance(prop, Link):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1290 link_class = prop.classname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1291 # if it isn't a number, it's a key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1292 if value is not None and not isinstance(value, type('')):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1293 raise ValueError, 'property "%s" link value be a string'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1294 propname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1295 if isinstance(value, type('')) and not num_re.match(value):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1296 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1297 value = self.db.classes[link_class].lookup(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1298 except (TypeError, KeyError):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1299 raise IndexError, 'new property "%s": %s not a %s'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1300 propname, value, prop.classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1301
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1302 if (value is not None and
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1303 not self.db.getclass(link_class).hasnode(value)):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1304 raise IndexError, '%s has no node %s'%(link_class, value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1305
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1306 if self.do_journal and prop.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1307 # register the unlink with the old linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1308 if node[propname] is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1309 self.db.addjournal(link_class, node[propname], 'unlink',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1310 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1311
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1312 # register the link with the newly linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1313 if value is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1314 self.db.addjournal(link_class, value, 'link',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1315 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1316
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1317 elif isinstance(prop, Multilink):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1318 if type(value) != type([]):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1319 raise TypeError, 'new property "%s" not a list of'\
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1320 ' ids'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1321 link_class = self.properties[propname].classname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1322 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1323 for entry in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1324 # if it isn't a number, it's a key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1325 if type(entry) != type(''):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1326 raise ValueError, 'new property "%s" link value ' \
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1327 'must be a string'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1328 if not num_re.match(entry):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1329 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1330 entry = self.db.classes[link_class].lookup(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1331 except (TypeError, KeyError):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1332 raise IndexError, 'new property "%s": %s not a %s'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1333 propname, entry,
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1334 self.properties[propname].classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1335 l.append(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1336 value = l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1337 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1338
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1339 # figure the journal entry for this property
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1340 add = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1341 remove = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1342
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1343 # handle removals
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1344 if node.has_key(propname):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1345 l = node[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1346 else:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1347 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1348 for id in l[:]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1349 if id in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1350 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1351 # register the unlink with the old linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1352 if self.do_journal and self.properties[propname].do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1353 self.db.addjournal(link_class, id, 'unlink',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1354 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1355 l.remove(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1356 remove.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1357
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1358 # handle additions
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1359 for id in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1360 if not self.db.getclass(link_class).hasnode(id):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1361 raise IndexError, '%s has no node %s'%(link_class, id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1362 if id in l:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1363 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1364 # register the link with the newly linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1365 if self.do_journal and self.properties[propname].do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1366 self.db.addjournal(link_class, id, 'link',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1367 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1368 l.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1369 add.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1370
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1371 # figure the journal entry
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1372 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1373 if add:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1374 l.append(('+', add))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1375 if remove:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1376 l.append(('-', remove))
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1377 multilink_changes[propname] = (add, remove)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1378 if l:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1379 journalvalues[propname] = tuple(l)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1380
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1381 elif isinstance(prop, String):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1382 if value is not None and type(value) != type(''):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1383 raise TypeError, 'new property "%s" not a string'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1384
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1385 elif isinstance(prop, Password):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1386 if not isinstance(value, password.Password):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1387 raise TypeError, 'new property "%s" not a Password'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1388 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1389
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1390 elif value is not None and isinstance(prop, Date):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1391 if not isinstance(value, date.Date):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1392 raise TypeError, 'new property "%s" not a Date'% propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1393 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1394
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1395 elif value is not None and isinstance(prop, Interval):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1396 if not isinstance(value, date.Interval):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1397 raise TypeError, 'new property "%s" not an '\
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1398 'Interval'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1399 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1400
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1401 elif value is not None and isinstance(prop, Number):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1402 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1403 float(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1404 except ValueError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1405 raise TypeError, 'new property "%s" not numeric'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1406
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1407 elif value is not None and isinstance(prop, Boolean):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1408 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1409 int(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1410 except ValueError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1411 raise TypeError, 'new property "%s" not boolean'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1412
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1413 node[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1414
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1415 # nothing to do?
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1416 if not propvalues:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1417 return propvalues
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1418
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1419 # do the set, and journal it
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1420 self.db.setnode(self.classname, nodeid, node, multilink_changes)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1421
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1422 if self.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1423 propvalues.update(journalvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1424 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1425
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1426 self.fireReactors('set', nodeid, oldvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1427
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1428 return propvalues
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1429
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1430 def retire(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1431 '''Retire a node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1432
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1433 The properties on the node remain available from the get() method,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1434 and the node's id is never reused.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1435
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1436 Retired nodes are not returned by the find(), list(), or lookup()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1437 methods, and other nodes may reuse the values of their key properties.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1438 '''
975
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1439 if self.db.journaltag is None:
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1440 raise DatabaseError, 'Database open read-only'
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1441
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1442 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1443 sql = 'update _%s set __retired__=1 where id=?'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1444 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1445 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1446 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1447
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1448 def is_retired(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1449 '''Return true if the node is rerired
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1450 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1451 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1452 sql = 'select __retired__ from _%s where id=?'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1453 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1454 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1455 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1456 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1457
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1458 def destroy(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1459 '''Destroy a node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1460
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1461 WARNING: this method should never be used except in extremely rare
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1462 situations where there could never be links to the node being
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1463 deleted
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1464 WARNING: use retire() instead
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1465 WARNING: the properties of this node will not be available ever again
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1466 WARNING: really, use retire() instead
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1467
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1468 Well, I think that's enough warnings. This method exists mostly to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1469 support the session storage of the cgi interface.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1470
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1471 The node is completely removed from the hyperdb, including all journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1472 entries. It will no longer be available, and will generally break code
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1473 if there are any references to the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1474 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1475 if self.db.journaltag is None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1476 raise DatabaseError, 'Database open read-only'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1477 self.db.destroynode(self.classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1478
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1479 def history(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1480 '''Retrieve the journal of edits on a particular node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1481
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1482 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1483 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1484
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1485 The returned list contains tuples of the form
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1486
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1487 (date, tag, action, params)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1488
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1489 'date' is a Timestamp object specifying the time of the change and
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1490 'tag' is the journaltag specified when the database was opened.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1491 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1492 if not self.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1493 raise ValueError, 'Journalling is disabled for this class'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1494 return self.db.getjournal(self.classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1495
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1496 # Locating nodes:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1497 def hasnode(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1498 '''Determine if the given nodeid actually exists
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1499 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1500 return self.db.hasnode(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1501
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1502 def setkey(self, propname):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1503 '''Select a String property of this class to be the key property.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1504
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1505 'propname' must be the name of a String property of this class or
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1506 None, or a TypeError is raised. The values of the key property on
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1507 all existing nodes must be unique or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1508 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1509 # XXX create an index on the key prop column
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1510 prop = self.getprops()[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1511 if not isinstance(prop, String):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1512 raise TypeError, 'key properties must be String'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1513 self.key = propname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1514
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1515 def getkey(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1516 '''Return the name of the key property for this class or None.'''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1517 return self.key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1518
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1519 def labelprop(self, default_to_id=0):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1520 ''' Return the property name for a label for the given node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1521
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1522 This method attempts to generate a consistent label for the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1523 It tries the following in order:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1524 1. key property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1525 2. "name" property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1526 3. "title" property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1527 4. first property from the sorted property name list
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1528 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1529 k = self.getkey()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1530 if k:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1531 return k
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1532 props = self.getprops()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1533 if props.has_key('name'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1534 return 'name'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1535 elif props.has_key('title'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1536 return 'title'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1537 if default_to_id:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1538 return 'id'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1539 props = props.keys()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1540 props.sort()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1541 return props[0]
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1542
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1543 def lookup(self, keyvalue):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1544 '''Locate a particular node by its key property and return its id.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1545
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1546 If this class has no key property, a TypeError is raised. If the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1547 'keyvalue' matches one of the values for the key property among
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1548 the nodes in this class, the matching node's id is returned;
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1549 otherwise a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1550 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1551 if not self.key:
1127
22517f9e3b1e nicer error message
Richard Jones <richard@users.sourceforge.net>
parents: 1109
diff changeset
1552 raise TypeError, 'No key property set for class %s'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1553
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1554 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1555 sql = 'select id from _%s where _%s=?'%(self.classname, self.key)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1556 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1557 print >>hyperdb.DEBUG, 'lookup', (self, sql, keyvalue)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1558 cursor.execute(sql, (keyvalue,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1559
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1560 # see if there was a result
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1561 l = cursor.fetchall()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1562 if not l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1563 raise KeyError, keyvalue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1564
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1565 # return the id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1566 return l[0][0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1567
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1568 def find(self, **propspec):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1569 '''Get the ids of nodes in this class which link to the given nodes.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1570
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1571 'propspec' consists of keyword args propname={nodeid:1,}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1572 'propname' must be the name of a property in this class, or a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1573 KeyError is raised. That property must be a Link or Multilink
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1574 property, or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1575
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1576 Any node in this class whose 'propname' property links to any of the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1577 nodeids will be returned. Used by the full text indexing, which knows
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1578 that "foo" occurs in msg1, msg3 and file7, so we have hits on these
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1579 issues:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1580
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1581 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1582 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1583 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1584 print >>hyperdb.DEBUG, 'find', (self, propspec)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1585 if not propspec:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1586 return []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1587 queries = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1588 tables = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1589 allvalues = ()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1590 for prop, values in propspec.items():
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1591 allvalues += tuple(values.keys())
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1592 tables.append('select nodeid from %s_%s where linkid in (%s)'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1593 self.classname, prop, ','.join(['?' for x in values.keys()])))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1594 sql = '\nintersect\n'.join(tables)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1595 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1596 print >>hyperdb.DEBUG, 'find', (self, sql, allvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1597 cursor = self.db.conn.cursor()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1598 cursor.execute(sql, allvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1599 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1600 l = [x[0] for x in cursor.fetchall()]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1601 except gadfly.database.error, message:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1602 if message == 'no more results':
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1603 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1604 raise
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1605 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1606 print >>hyperdb.DEBUG, 'find ... ', l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1607 return l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1608
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1609 def list(self):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1610 ''' Return a list of the ids of the active nodes in this class.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1611 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1612 return self.db.getnodeids(self.classname, retired=0)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1613
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1614 def filter(self, search_matches, filterspec, sort, group):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1615 ''' Return a list of the ids of the active nodes in this class that
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1616 match the 'filter' spec, sorted by the group spec and then the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1617 sort spec
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1618
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1619 "filterspec" is {propname: value(s)}
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1620 "sort" and "group" are (dir, prop) where dir is '+', '-' or None
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1621 and prop is a prop name or None
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1622 "search_matches" is {nodeid: marker}
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1623 '''
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1624 cn = self.classname
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1625
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1626 # figure the WHERE clause from the filterspec
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1627 props = self.getprops()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1628 frum = ['_'+cn]
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1629 where = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1630 args = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1631 for k, v in filterspec.items():
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1632 propclass = props[k]
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1633 if isinstance(propclass, Multilink):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1634 tn = '%s_%s'%(cn, k)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1635 frum.append(tn)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1636 if isinstance(v, type([])):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1637 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1638 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1639 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1640 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1641 where.append('id=%s.nodeid and %s.linkid = ?'%(tn, tn))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1642 args.append(v)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1643 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1644 if isinstance(v, type([])):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1645 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1646 where.append('_%s in (%s)'%(k, s))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1647 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1648 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1649 where.append('_%s=?'%k)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1650 args.append(v)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1651
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1652 # add results of full text search
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1653 if search_matches is not None:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1654 v = search_matches.keys()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1655 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1656 where.append('id in (%s)'%s)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1657 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1658
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1659 # figure the order by clause
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1660 orderby = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1661 ordercols = []
1038
Richard Jones <richard@users.sourceforge.net>
parents: 1032
diff changeset
1662 if sort[0] is not None and sort[1] is not None:
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1663 if sort[0] != '-':
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1664 orderby.append('_'+sort[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1665 ordercols.append(sort[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1666 else:
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1667 orderby.append('_'+sort[1]+' desc')
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1668 ordercols.append(sort[1])
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1669
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1670 # figure the group by clause
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1671 groupby = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1672 groupcols = []
1038
Richard Jones <richard@users.sourceforge.net>
parents: 1032
diff changeset
1673 if group[0] is not None and group[1] is not None:
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1674 if group[0] != '-':
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1675 groupby.append('_'+group[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1676 groupcols.append(group[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1677 else:
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1678 groupby.append('_'+group[1]+' desc')
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1679 groupcols.append(group[1])
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1680
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1681 # construct the SQL
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1682 frum = ','.join(frum)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1683 where = ' and '.join(where)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1684 cols = ['id']
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1685 if orderby:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1686 cols = cols + ordercols
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1687 order = ' order by %s'%(','.join(orderby))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1688 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1689 order = ''
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1690 if groupby:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1691 cols = cols + groupcols
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1692 group = ' group by %s'%(','.join(groupby))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1693 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1694 group = ''
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1695 cols = ','.join(cols)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1696 sql = 'select %s from %s where %s%s%s'%(cols, frum, where, order,
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1697 group)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1698 args = tuple(args)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1699 if __debug__:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1700 print >>hyperdb.DEBUG, 'find', (self, sql, args)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1701 cursor = self.db.conn.cursor()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1702 cursor.execute(sql, args)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1703
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1704 def count(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1705 '''Get the number of nodes in this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1706
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1707 If the returned integer is 'numnodes', the ids of all the nodes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1708 in this class run from 1 to numnodes, and numnodes+1 will be the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1709 id of the next node to be created in this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1710 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1711 return self.db.countnodes(self.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1712
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1713 # Manipulating properties:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1714 def getprops(self, protected=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1715 '''Return a dictionary mapping property names to property objects.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1716 If the "protected" flag is true, we include protected properties -
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1717 those which may not be modified.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1718 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1719 d = self.properties.copy()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1720 if protected:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1721 d['id'] = String()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1722 d['creation'] = hyperdb.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1723 d['activity'] = hyperdb.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1724 d['creator'] = hyperdb.Link("user")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1725 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1726
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1727 def addprop(self, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1728 '''Add properties to this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1729
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1730 The keyword arguments in 'properties' must map names to property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1731 objects, or a TypeError is raised. None of the keys in 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1732 may collide with the names of existing properties, or a ValueError
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1733 is raised before any properties have been added.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1734 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1735 for key in properties.keys():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1736 if self.properties.has_key(key):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1737 raise ValueError, key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1738 self.properties.update(properties)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1739
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1740 def index(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1741 '''Add (or refresh) the node to search indexes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1742 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1743 # find all the String properties that have indexme
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1744 for prop, propclass in self.getprops().items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1745 if isinstance(propclass, String) and propclass.indexme:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1746 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1747 value = str(self.get(nodeid, prop))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1748 except IndexError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1749 # node no longer exists - entry should be removed
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1750 self.db.indexer.purge_entry((self.classname, nodeid, prop))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1751 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1752 # and index them under (classname, nodeid, property)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1753 self.db.indexer.add_text((self.classname, nodeid, prop),
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1754 value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1755
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1756
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1757 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1758 # Detector interface
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1759 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1760 def audit(self, event, detector):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1761 '''Register a detector
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1762 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1763 l = self.auditors[event]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1764 if detector not in l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1765 self.auditors[event].append(detector)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1766
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1767 def fireAuditors(self, action, nodeid, newvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1768 '''Fire all registered auditors.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1769 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1770 for audit in self.auditors[action]:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1771 audit(self.db, self, nodeid, newvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1772
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1773 def react(self, event, detector):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1774 '''Register a detector
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1775 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1776 l = self.reactors[event]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1777 if detector not in l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1778 self.reactors[event].append(detector)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1779
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1780 def fireReactors(self, action, nodeid, oldvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1781 '''Fire all registered reactors.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1782 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1783 for react in self.reactors[action]:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1784 react(self.db, self, nodeid, oldvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1785
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1786 class FileClass(Class):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1787 '''This class defines a large chunk of data. To support this, it has a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1788 mandatory String property "content" which is typically saved off
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1789 externally to the hyperdb.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1790
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1791 The default MIME type of this data is defined by the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1792 "default_mime_type" class attribute, which may be overridden by each
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1793 node if the class defines a "type" String property.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1794 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1795 default_mime_type = 'text/plain'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1796
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1797 def create(self, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1798 ''' snaffle the file propvalue and store in a file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1799 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1800 content = propvalues['content']
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1801 del propvalues['content']
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1802 newid = Class.create(self, **propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1803 self.db.storefile(self.classname, newid, None, content)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1804 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1805
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1806 def import_list(self, propnames, proplist):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1807 ''' Trap the "content" property...
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1808 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1809 # dupe this list so we don't affect others
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1810 propnames = propnames[:]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1811
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1812 # extract the "content" property from the proplist
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1813 i = propnames.index('content')
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1814 content = eval(proplist[i])
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1815 del propnames[i]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1816 del proplist[i]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1817
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1818 # do the normal import
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1819 newid = Class.import_list(self, propnames, proplist)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1820
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1821 # save off the "content" file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1822 self.db.storefile(self.classname, newid, None, content)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1823 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1824
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1825 _marker = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1826 def get(self, nodeid, propname, default=_marker, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1827 ''' trap the content propname and get it from the file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1828 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1829
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1830 poss_msg = 'Possibly a access right configuration problem.'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1831 if propname == 'content':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1832 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1833 return self.db.getfile(self.classname, nodeid, None)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1834 except IOError, (strerror):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1835 # BUG: by catching this we donot see an error in the log.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1836 return 'ERROR reading file: %s%s\n%s\n%s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1837 self.classname, nodeid, poss_msg, strerror)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1838 if default is not self._marker:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1839 return Class.get(self, nodeid, propname, default, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1840 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1841 return Class.get(self, nodeid, propname, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1842
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1843 def getprops(self, protected=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1844 ''' In addition to the actual properties on the node, these methods
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1845 provide the "content" property. If the "protected" flag is true,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1846 we include protected properties - those which may not be
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1847 modified.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1848 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1849 d = Class.getprops(self, protected=protected).copy()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1850 if protected:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1851 d['content'] = hyperdb.String()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1852 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1853
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1854 def index(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1855 ''' Index the node in the search index.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1856
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1857 We want to index the content in addition to the normal String
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1858 property indexing.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1859 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1860 # perform normal indexing
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1861 Class.index(self, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1862
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1863 # get the content to index
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1864 content = self.get(nodeid, 'content')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1865
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1866 # figure the mime type
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1867 if self.properties.has_key('type'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1868 mime_type = self.get(nodeid, 'type')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1869 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1870 mime_type = self.default_mime_type
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1871
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1872 # and index!
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1873 self.db.indexer.add_text((self.classname, nodeid, 'content'), content,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1874 mime_type)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1875
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1876 # XXX deviation from spec - was called ItemClass
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1877 class IssueClass(Class, roundupdb.IssueClass):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1878 # Overridden methods:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1879 def __init__(self, db, classname, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1880 '''The newly-created class automatically includes the "messages",
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1881 "files", "nosy", and "superseder" properties. If the 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1882 dictionary attempts to specify any of these properties or a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1883 "creation" or "activity" property, a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1884 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1885 if not properties.has_key('title'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1886 properties['title'] = hyperdb.String(indexme='yes')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1887 if not properties.has_key('messages'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1888 properties['messages'] = hyperdb.Multilink("msg")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1889 if not properties.has_key('files'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1890 properties['files'] = hyperdb.Multilink("file")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1891 if not properties.has_key('nosy'):
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1892 # note: journalling is turned off as it really just wastes
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1893 # space. this behaviour may be overridden in an instance
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1894 properties['nosy'] = hyperdb.Multilink("user", do_journal="no")
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1895 if not properties.has_key('superseder'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1896 properties['superseder'] = hyperdb.Multilink(classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1897 Class.__init__(self, db, classname, **properties)
Roundup Issue Tracker: http://roundup-tracker.org/