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annotate roundup/backends/rdbms_common.py @ 1418:e6b2d51e5b95 maint-0.5

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backport fix from HEAD
author Richard Jones <richard@users.sourceforge.net>
date Wed, 12 Feb 2003 00:03:38 +0000
parents 3a853f1c20b5
children 31cc79f966ac
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1418
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parents: 1410
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1 # $Id: rdbms_common.py,v 1.27.2.3 2003-02-12 00:03:38 richard Exp $
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2 ''' Relational database (SQL) backend common code.
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3
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4 Basics:
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5
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6 - map roundup classes to relational tables
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7 - automatically detect schema changes and modify the table schemas
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8 appropriately (we store the "database version" of the schema in the
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9 database itself as the only row of the "schema" table)
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10 - multilinks (which represent a many-to-many relationship) are handled through
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11 intermediate tables
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12 - journals are stored adjunct to the per-class tables
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13 - table names and columns have "_" prepended so the names can't clash with
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14 restricted names (like "order")
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15 - retirement is determined by the __retired__ column being true
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16
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17 Database-specific changes may generally be pushed out to the overridable
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18 sql_* methods, since everything else should be fairly generic. There's
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19 probably a bit of work to be done if a database is used that actually
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20 honors column typing, since the initial databases don't (sqlite stores
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21 everything as a string, and gadfly stores anything that's marsallable).
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22 '''
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23
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24 # standard python modules
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25 import sys, os, time, re, errno, weakref, copy
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26
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27 # roundup modules
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28 from roundup import hyperdb, date, password, roundupdb, security
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29 from roundup.hyperdb import String, Password, Date, Interval, Link, \
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30 Multilink, DatabaseError, Boolean, Number, Node
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31 from roundup.backends import locking
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32
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33 # support
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34 from blobfiles import FileStorage
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35 from roundup.indexer import Indexer
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36 from sessions import Sessions
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37
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38 # number of rows to keep in memory
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39 ROW_CACHE_SIZE = 100
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40
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41 class Database(FileStorage, hyperdb.Database, roundupdb.Database):
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42 ''' Wrapper around an SQL database that presents a hyperdb interface.
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43
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44 - some functionality is specific to the actual SQL database, hence
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45 the sql_* methods that are NotImplemented
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46 - we keep a cache of the latest ROW_CACHE_SIZE row fetches.
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47 '''
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48 def __init__(self, config, journaltag=None):
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49 ''' Open the database and load the schema from it.
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50 '''
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51 self.config, self.journaltag = config, journaltag
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52 self.dir = config.DATABASE
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53 self.classes = {}
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54 self.indexer = Indexer(self.dir)
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55 self.sessions = Sessions(self.config)
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56 self.security = security.Security(self)
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57
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58 # additional transaction support for external files and the like
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59 self.transactions = []
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60
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61 # keep a cache of the N most recently retrieved rows of any kind
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62 # (classname, nodeid) = row
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63 self.cache = {}
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64 self.cache_lru = []
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65
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66 # database lock
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67 self.lockfile = None
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68
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69 # open a connection to the database, creating the "conn" attribute
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70 self.open_connection()
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71
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72 def clearCache(self):
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73 self.cache = {}
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74 self.cache_lru = []
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75
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76 def open_connection(self):
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77 ''' Open a connection to the database, creating it if necessary
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78 '''
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79 raise NotImplemented
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80
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81 def sql(self, sql, args=None):
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82 ''' Execute the sql with the optional args.
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83 '''
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84 if __debug__:
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85 print >>hyperdb.DEBUG, (self, sql, args)
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86 if args:
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87 self.cursor.execute(sql, args)
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88 else:
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89 self.cursor.execute(sql)
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90
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91 def sql_fetchone(self):
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92 ''' Fetch a single row. If there's nothing to fetch, return None.
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93 '''
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94 raise NotImplemented
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95
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96 def sql_stringquote(self, value):
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97 ''' Quote the string so it's safe to put in the 'sql quotes'
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98 '''
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99 return re.sub("'", "''", str(value))
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100
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101 def save_dbschema(self, schema):
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102 ''' Save the schema definition that the database currently implements
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103 '''
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104 raise NotImplemented
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105
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106 def load_dbschema(self):
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107 ''' Load the schema definition that the database currently implements
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108 '''
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109 raise NotImplemented
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110
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111 def post_init(self):
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112 ''' Called once the schema initialisation has finished.
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113
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114 We should now confirm that the schema defined by our "classes"
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115 attribute actually matches the schema in the database.
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116 '''
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117 # now detect changes in the schema
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118 save = 0
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119 for classname, spec in self.classes.items():
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120 if self.database_schema.has_key(classname):
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121 dbspec = self.database_schema[classname]
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122 if self.update_class(spec, dbspec):
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123 self.database_schema[classname] = spec.schema()
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124 save = 1
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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 save = 1
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129
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130 for classname in self.database_schema.keys():
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131 if not self.classes.has_key(classname):
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132 self.drop_class(classname)
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133
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134 # update the database version of the schema
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135 if save:
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136 self.sql('delete from schema')
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137 self.save_dbschema(self.database_schema)
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138
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139 # reindex the db if necessary
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140 if self.indexer.should_reindex():
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141 self.reindex()
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142
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143 # commit
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144 self.conn.commit()
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145
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146 # figure the "curuserid"
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147 if self.journaltag is None:
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148 self.curuserid = None
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149 elif self.journaltag == 'admin':
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150 # admin user may not exist, but always has ID 1
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151 self.curuserid = '1'
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152 else:
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153 self.curuserid = self.user.lookup(self.journaltag)
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154
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155 def reindex(self):
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156 for klass in self.classes.values():
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157 for nodeid in klass.list():
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158 klass.index(nodeid)
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159 self.indexer.save_index()
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160
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161 def determine_columns(self, properties):
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162 ''' Figure the column names and multilink properties from the spec
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163
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164 "properties" is a list of (name, prop) where prop may be an
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165 instance of a hyperdb "type" _or_ a string repr of that type.
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166 '''
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167 cols = ['_activity', '_creator', '_creation']
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168 mls = []
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169 # add the multilinks separately
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170 for col, prop in properties:
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171 if isinstance(prop, Multilink):
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172 mls.append(col)
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173 elif isinstance(prop, type('')) and prop.find('Multilink') != -1:
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174 mls.append(col)
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175 else:
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176 cols.append('_'+col)
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177 cols.sort()
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178 return cols, mls
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179
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180 def update_class(self, spec, dbspec):
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181 ''' Determine the differences between the current spec and the
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182 database version of the spec, and update where necessary
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183 '''
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184 spec_schema = spec.schema()
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185 if spec_schema == dbspec:
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186 # no save needed for this one
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187 return 0
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188 if __debug__:
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189 print >>hyperdb.DEBUG, 'update_class FIRING'
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190
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191 # key property changed?
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192 if dbspec[0] != spec_schema[0]:
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193 if __debug__:
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194 print >>hyperdb.DEBUG, 'update_class setting keyprop', `spec[0]`
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195 # XXX turn on indexing for the key property
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196
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197 # dict 'em up
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198 spec_propnames,spec_props = [],{}
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199 for propname,prop in spec_schema[1]:
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200 spec_propnames.append(propname)
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201 spec_props[propname] = prop
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202 dbspec_propnames,dbspec_props = [],{}
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203 for propname,prop in dbspec[1]:
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204 dbspec_propnames.append(propname)
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205 dbspec_props[propname] = prop
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206
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207 # now compare
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208 for propname in spec_propnames:
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209 prop = spec_props[propname]
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210 if dbspec_props.has_key(propname) and prop==dbspec_props[propname]:
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211 continue
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212 if __debug__:
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213 print >>hyperdb.DEBUG, 'update_class ADD', (propname, prop)
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214
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215 if not dbspec_props.has_key(propname):
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216 # add the property
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217 if isinstance(prop, Multilink):
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218 # all we have to do here is create a new table, easy!
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219 self.create_multilink_table(spec, propname)
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220 continue
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221
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222 # no ALTER TABLE, so we:
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223 # 1. pull out the data, including an extra None column
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224 oldcols, x = self.determine_columns(dbspec[1])
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225 oldcols.append('id')
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226 oldcols.append('__retired__')
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227 cn = spec.classname
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228 sql = 'select %s,%s from _%s'%(','.join(oldcols), self.arg, cn)
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229 if __debug__:
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230 print >>hyperdb.DEBUG, 'update_class', (self, sql, None)
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231 self.cursor.execute(sql, (None,))
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232 olddata = self.cursor.fetchall()
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233
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234 # 2. drop the old table
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235 self.cursor.execute('drop table _%s'%cn)
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236
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237 # 3. create the new table
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238 cols, mls = self.create_class_table(spec)
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239 # ensure the new column is last
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240 cols.remove('_'+propname)
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241 assert oldcols == cols, "Column lists don't match!"
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242 cols.append('_'+propname)
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243
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244 # 4. populate with the data from step one
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245 s = ','.join([self.arg for x in cols])
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246 scols = ','.join(cols)
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247 sql = 'insert into _%s (%s) values (%s)'%(cn, scols, s)
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248
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249 # GAH, nothing had better go wrong from here on in... but
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250 # we have to commit the drop...
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251 # XXX this isn't necessary in sqlite :(
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252 self.conn.commit()
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253
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254 # do the insert
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255 for row in olddata:
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256 self.sql(sql, tuple(row))
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257
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258 else:
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259 # modify the property
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260 if __debug__:
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261 print >>hyperdb.DEBUG, 'update_class NOOP'
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262 pass # NOOP in gadfly
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263
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264 # and the other way - only worry about deletions here
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265 for propname in dbspec_propnames:
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266 prop = dbspec_props[propname]
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267 if spec_props.has_key(propname):
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268 continue
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269 if __debug__:
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270 print >>hyperdb.DEBUG, 'update_class REMOVE', `prop`
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271
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272 # delete the property
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273 if isinstance(prop, Multilink):
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274 sql = 'drop table %s_%s'%(spec.classname, prop)
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275 if __debug__:
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276 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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277 self.cursor.execute(sql)
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278 else:
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279 # no ALTER TABLE, so we:
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280 # 1. pull out the data, excluding the removed column
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281 oldcols, x = self.determine_columns(spec.properties.items())
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282 oldcols.append('id')
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283 oldcols.append('__retired__')
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284 # remove the missing column
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285 oldcols.remove('_'+propname)
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286 cn = spec.classname
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287 sql = 'select %s from _%s'%(','.join(oldcols), cn)
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288 self.cursor.execute(sql, (None,))
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289 olddata = sql.fetchall()
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290
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291 # 2. drop the old table
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292 self.cursor.execute('drop table _%s'%cn)
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293
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294 # 3. create the new table
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295 cols, mls = self.create_class_table(self, spec)
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296 assert oldcols != cols, "Column lists don't match!"
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297
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298 # 4. populate with the data from step one
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299 qs = ','.join([self.arg for x in cols])
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300 sql = 'insert into _%s values (%s)'%(cn, s)
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301 self.cursor.execute(sql, olddata)
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302 return 1
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303
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304 def create_class_table(self, spec):
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305 ''' create the class table for the given spec
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306 '''
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307 cols, mls = self.determine_columns(spec.properties.items())
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308
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309 # add on our special columns
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310 cols.append('id')
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311 cols.append('__retired__')
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312
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313 # create the base table
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314 scols = ','.join(['%s varchar'%x for x in cols])
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315 sql = 'create table _%s (%s)'%(spec.classname, scols)
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316 if __debug__:
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317 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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318 self.cursor.execute(sql)
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319
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320 return cols, mls
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321
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322 def create_journal_table(self, spec):
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323 ''' create the journal table for a class given the spec and
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324 already-determined cols
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325 '''
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326 # journal table
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327 cols = ','.join(['%s varchar'%x
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328 for x in 'nodeid date tag action params'.split()])
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329 sql = 'create table %s__journal (%s)'%(spec.classname, cols)
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330 if __debug__:
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331 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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332 self.cursor.execute(sql)
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333
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334 def create_multilink_table(self, spec, ml):
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335 ''' Create a multilink table for the "ml" property of the class
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336 given by the spec
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337 '''
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338 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%(
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339 spec.classname, ml)
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340 if __debug__:
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341 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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342 self.cursor.execute(sql)
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343
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344 def create_class(self, spec):
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345 ''' Create a database table according to the given spec.
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346 '''
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347 cols, mls = self.create_class_table(spec)
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348 self.create_journal_table(spec)
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349
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350 # now create the multilink tables
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351 for ml in mls:
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352 self.create_multilink_table(spec, ml)
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353
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354 # ID counter
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355 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg)
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356 vals = (spec.classname, 1)
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357 if __debug__:
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358 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals)
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359 self.cursor.execute(sql, vals)
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360
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361 def drop_class(self, spec):
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362 ''' Drop the given table from the database.
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363
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364 Drop the journal and multilink tables too.
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365 '''
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366 # figure the multilinks
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367 mls = []
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368 for col, prop in spec.properties.items():
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369 if isinstance(prop, Multilink):
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370 mls.append(col)
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371
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372 sql = 'drop table _%s'%spec.classname
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373 if __debug__:
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374 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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375 self.cursor.execute(sql)
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376
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377 sql = 'drop table %s__journal'%spec.classname
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378 if __debug__:
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379 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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380 self.cursor.execute(sql)
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381
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382 for ml in mls:
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383 sql = 'drop table %s_%s'%(spec.classname, ml)
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384 if __debug__:
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385 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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386 self.cursor.execute(sql)
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387
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388 #
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389 # Classes
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390 #
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391 def __getattr__(self, classname):
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392 ''' A convenient way of calling self.getclass(classname).
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393 '''
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394 if self.classes.has_key(classname):
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395 if __debug__:
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396 print >>hyperdb.DEBUG, '__getattr__', (self, classname)
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397 return self.classes[classname]
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398 raise AttributeError, classname
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399
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400 def addclass(self, cl):
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401 ''' Add a Class to the hyperdatabase.
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402 '''
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403 if __debug__:
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404 print >>hyperdb.DEBUG, 'addclass', (self, cl)
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405 cn = cl.classname
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406 if self.classes.has_key(cn):
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407 raise ValueError, cn
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408 self.classes[cn] = cl
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409
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410 def getclasses(self):
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411 ''' Return a list of the names of all existing classes.
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412 '''
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413 if __debug__:
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414 print >>hyperdb.DEBUG, 'getclasses', (self,)
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415 l = self.classes.keys()
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416 l.sort()
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417 return l
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418
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419 def getclass(self, classname):
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420 '''Get the Class object representing a particular class.
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421
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422 If 'classname' is not a valid class name, a KeyError is raised.
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423 '''
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424 if __debug__:
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425 print >>hyperdb.DEBUG, 'getclass', (self, classname)
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426 try:
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427 return self.classes[classname]
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428 except KeyError:
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429 raise KeyError, 'There is no class called "%s"'%classname
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430
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431 def clear(self):
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432 ''' Delete all database contents.
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433
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434 Note: I don't commit here, which is different behaviour to the
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435 "nuke from orbit" behaviour in the *dbms.
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436 '''
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437 if __debug__:
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438 print >>hyperdb.DEBUG, 'clear', (self,)
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439 for cn in self.classes.keys():
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440 sql = 'delete from _%s'%cn
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441 if __debug__:
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442 print >>hyperdb.DEBUG, 'clear', (self, sql)
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443 self.cursor.execute(sql)
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444
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445 #
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446 # Node IDs
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diff changeset
447 #
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448 def newid(self, classname):
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449 ''' Generate a new id for the given class
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450 '''
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451 # get the next ID
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452 sql = 'select num from ids where name=%s'%self.arg
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453 if __debug__:
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454 print >>hyperdb.DEBUG, 'newid', (self, sql, classname)
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455 self.cursor.execute(sql, (classname, ))
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456 newid = self.cursor.fetchone()[0]
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457
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458 # update the counter
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459 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
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460 vals = (int(newid)+1, classname)
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461 if __debug__:
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462 print >>hyperdb.DEBUG, 'newid', (self, sql, vals)
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463 self.cursor.execute(sql, vals)
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464
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465 # return as string
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466 return str(newid)
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467
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468 def setid(self, classname, setid):
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469 ''' Set the id counter: used during import of database
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470 '''
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471 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
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472 vals = (setid, classname)
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473 if __debug__:
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474 print >>hyperdb.DEBUG, 'setid', (self, sql, vals)
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475 self.cursor.execute(sql, vals)
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476
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477 #
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478 # Nodes
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diff changeset
479 #
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480
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481 def addnode(self, classname, nodeid, node):
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482 ''' Add the specified node to its class's db.
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483 '''
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484 if __debug__:
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485 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node)
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486 # gadfly requires values for all non-multilink columns
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487 cl = self.classes[classname]
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488 cols, mls = self.determine_columns(cl.properties.items())
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489
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diff changeset
490 # we'll be supplied these props if we're doing an import
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491 if not node.has_key('creator'):
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492 # add in the "calculated" properties (dupe so we don't affect
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493 # calling code's node assumptions)
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494 node = node.copy()
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495 node['creation'] = node['activity'] = date.Date()
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496 node['creator'] = self.curuserid
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497
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498 # default the non-multilink columns
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499 for col, prop in cl.properties.items():
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500 if not isinstance(col, Multilink):
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501 if not node.has_key(col):
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502 node[col] = None
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diff changeset
503
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diff changeset
504 # clear this node out of the cache if it's in there
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505 key = (classname, nodeid)
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506 if self.cache.has_key(key):
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507 del self.cache[key]
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508 self.cache_lru.remove(key)
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509
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510 # make the node data safe for the DB
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511 node = self.serialise(classname, node)
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diff changeset
512
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513 # make sure the ordering is correct for column name -> column value
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514 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0)
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515 s = ','.join([self.arg for x in cols]) + ',%s,%s'%(self.arg, self.arg)
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516 cols = ','.join(cols) + ',id,__retired__'
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517
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518 # perform the inserts
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519 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s)
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520 if __debug__:
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521 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
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522 self.cursor.execute(sql, vals)
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523
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524 # insert the multilink rows
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525 for col in mls:
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526 t = '%s_%s'%(classname, col)
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527 for entry in node[col]:
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528 sql = 'insert into %s (linkid, nodeid) values (%s,%s)'%(t,
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529 self.arg, self.arg)
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530 self.sql(sql, (entry, nodeid))
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531
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532 # make sure we do the commit-time extra stuff for this node
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533 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
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534
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535 def setnode(self, classname, nodeid, values, multilink_changes):
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536 ''' Change the specified node.
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537 '''
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538 if __debug__:
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539 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, values)
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540
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541 # clear this node out of the cache if it's in there
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542 key = (classname, nodeid)
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543 if self.cache.has_key(key):
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544 del self.cache[key]
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545 self.cache_lru.remove(key)
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546
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547 # add the special props
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548 values = values.copy()
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549 values['activity'] = date.Date()
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550
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551 # make db-friendly
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552 values = self.serialise(classname, values)
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553
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554 cl = self.classes[classname]
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555 cols = []
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556 mls = []
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557 # add the multilinks separately
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558 props = cl.getprops()
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559 for col in values.keys():
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560 prop = props[col]
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561 if isinstance(prop, Multilink):
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562 mls.append(col)
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563 else:
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564 cols.append('_'+col)
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565 cols.sort()
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566
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567 # if there's any updates to regular columns, do them
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568 if cols:
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diff changeset
569 # make sure the ordering is correct for column name -> column value
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diff changeset
570 sqlvals = tuple([values[col[1:]] for col in cols]) + (nodeid,)
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diff changeset
571 s = ','.join(['%s=%s'%(x, self.arg) for x in cols])
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diff changeset
572 cols = ','.join(cols)
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diff changeset
573
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parents:
diff changeset
574 # perform the update
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diff changeset
575 sql = 'update _%s set %s where id=%s'%(classname, s, self.arg)
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diff changeset
576 if __debug__:
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diff changeset
577 print >>hyperdb.DEBUG, 'setnode', (self, sql, sqlvals)
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diff changeset
578 self.cursor.execute(sql, sqlvals)
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diff changeset
579
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diff changeset
580 # now the fun bit, updating the multilinks ;)
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parents:
diff changeset
581 for col, (add, remove) in multilink_changes.items():
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diff changeset
582 tn = '%s_%s'%(classname, col)
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diff changeset
583 if add:
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parents:
diff changeset
584 sql = 'insert into %s (nodeid, linkid) values (%s,%s)'%(tn,
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diff changeset
585 self.arg, self.arg)
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diff changeset
586 for addid in add:
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diff changeset
587 self.sql(sql, (nodeid, addid))
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diff changeset
588 if remove:
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diff changeset
589 sql = 'delete from %s where nodeid=%s and linkid=%s'%(tn,
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diff changeset
590 self.arg, self.arg)
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diff changeset
591 for removeid in remove:
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diff changeset
592 self.sql(sql, (nodeid, removeid))
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diff changeset
593
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parents:
diff changeset
594 # make sure we do the commit-time extra stuff for this node
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diff changeset
595 self.transactions.append((self.doSaveNode, (classname, nodeid, values)))
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diff changeset
596
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diff changeset
597 def getnode(self, classname, nodeid):
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diff changeset
598 ''' Get a node from the database.
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diff changeset
599 '''
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diff changeset
600 if __debug__:
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601 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid)
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parents:
diff changeset
602
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parents:
diff changeset
603 # see if we have this node cached
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diff changeset
604 key = (classname, nodeid)
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diff changeset
605 if self.cache.has_key(key):
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diff changeset
606 # push us back to the top of the LRU
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diff changeset
607 self.cache_lru.remove(key)
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diff changeset
608 self.cache_lru.insert(0, key)
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diff changeset
609 # return the cached information
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610 return self.cache[key]
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diff changeset
611
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parents:
diff changeset
612 # figure the columns we're fetching
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613 cl = self.classes[classname]
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614 cols, mls = self.determine_columns(cl.properties.items())
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diff changeset
615 scols = ','.join(cols)
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diff changeset
616
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diff changeset
617 # perform the basic property fetch
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618 sql = 'select %s from _%s where id=%s'%(scols, classname, self.arg)
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619 self.sql(sql, (nodeid,))
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diff changeset
620
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621 values = self.sql_fetchone()
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622 if values is None:
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623 raise IndexError, 'no such %s node %s'%(classname, nodeid)
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624
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diff changeset
625 # make up the node
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626 node = {}
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627 for col in range(len(cols)):
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628 node[cols[col][1:]] = values[col]
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diff changeset
629
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diff changeset
630 # now the multilinks
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diff changeset
631 for col in mls:
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diff changeset
632 # get the link ids
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diff changeset
633 sql = 'select linkid from %s_%s where nodeid=%s'%(classname, col,
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diff changeset
634 self.arg)
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diff changeset
635 self.cursor.execute(sql, (nodeid,))
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diff changeset
636 # extract the first column from the result
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637 node[col] = [x[0] for x in self.cursor.fetchall()]
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638
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diff changeset
639 # un-dbificate the node data
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640 node = self.unserialise(classname, node)
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diff changeset
641
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642 # save off in the cache
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643 key = (classname, nodeid)
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644 self.cache[key] = node
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diff changeset
645 # update the LRU
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646 self.cache_lru.insert(0, key)
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647 if len(self.cache_lru) > ROW_CACHE_SIZE:
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648 del self.cache[self.cache_lru.pop()]
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diff changeset
649
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650 return node
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diff changeset
651
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diff changeset
652 def destroynode(self, classname, nodeid):
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653 '''Remove a node from the database. Called exclusively by the
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654 destroy() method on Class.
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diff changeset
655 '''
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656 if __debug__:
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657 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid)
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parents:
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658
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659 # make sure the node exists
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660 if not self.hasnode(classname, nodeid):
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661 raise IndexError, '%s has no node %s'%(classname, nodeid)
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662
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diff changeset
663 # see if we have this node cached
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664 if self.cache.has_key((classname, nodeid)):
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665 del self.cache[(classname, nodeid)]
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666
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diff changeset
667 # see if there's any obvious commit actions that we should get rid of
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668 for entry in self.transactions[:]:
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669 if entry[1][:2] == (classname, nodeid):
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670 self.transactions.remove(entry)
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671
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672 # now do the SQL
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673 sql = 'delete from _%s where id=%s'%(classname, self.arg)
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674 self.sql(sql, (nodeid,))
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675
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676 # remove from multilnks
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677 cl = self.getclass(classname)
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678 x, mls = self.determine_columns(cl.properties.items())
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679 for col in mls:
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680 # get the link ids
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681 sql = 'delete from %s_%s where nodeid=%s'%(classname, col, self.arg)
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682 self.cursor.execute(sql, (nodeid,))
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683
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684 # remove journal entries
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685 sql = 'delete from %s__journal where nodeid=%s'%(classname, self.arg)
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686 self.sql(sql, (nodeid,))
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687
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688 def serialise(self, classname, node):
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689 '''Copy the node contents, converting non-marshallable data into
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parents:
diff changeset
690 marshallable data.
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diff changeset
691 '''
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parents:
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692 if __debug__:
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693 print >>hyperdb.DEBUG, 'serialise', classname, node
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694 properties = self.getclass(classname).getprops()
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695 d = {}
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696 for k, v in node.items():
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697 # if the property doesn't exist, or is the "retired" flag then
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698 # it won't be in the properties dict
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699 if not properties.has_key(k):
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700 d[k] = v
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diff changeset
701 continue
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702
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703 # get the property spec
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704 prop = properties[k]
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705
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706 if isinstance(prop, Password) and v is not None:
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707 d[k] = str(v)
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708 elif isinstance(prop, Date) and v is not None:
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diff changeset
709 d[k] = v.serialise()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
710 elif isinstance(prop, Interval) and v is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
711 d[k] = v.serialise()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
712 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
713 d[k] = v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
714 return d
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
715
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
716 def unserialise(self, classname, node):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
717 '''Decode the marshalled node data
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
718 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
719 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720 print >>hyperdb.DEBUG, 'unserialise', classname, node
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
721 properties = self.getclass(classname).getprops()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
722 d = {}
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
723 for k, v in node.items():
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
724 # if the property doesn't exist, or is the "retired" flag then
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
725 # it won't be in the properties dict
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
726 if not properties.has_key(k):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
727 d[k] = v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
728 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
729
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
730 # get the property spec
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
731 prop = properties[k]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
732
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
733 if isinstance(prop, Date) and v is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
734 d[k] = date.Date(v)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
735 elif isinstance(prop, Interval) and v is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
736 d[k] = date.Interval(v)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
737 elif isinstance(prop, Password) and v is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
738 p = password.Password()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
739 p.unpack(v)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
740 d[k] = p
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
741 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
742 d[k] = v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
743 return d
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
744
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
745 def hasnode(self, classname, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
746 ''' Determine if the database has a given node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
747 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
748 sql = 'select count(*) from _%s where id=%s'%(classname, self.arg)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
749 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
750 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
751 self.cursor.execute(sql, (nodeid,))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
752 return int(self.cursor.fetchone()[0])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
753
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
754 def countnodes(self, classname):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
755 ''' Count the number of nodes that exist for a particular Class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
756 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
757 sql = 'select count(*) from _%s'%classname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
758 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
759 print >>hyperdb.DEBUG, 'countnodes', (self, sql)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
760 self.cursor.execute(sql)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
761 return self.cursor.fetchone()[0]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
762
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
763 def getnodeids(self, classname, retired=0):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
764 ''' Retrieve all the ids of the nodes for a particular Class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
765
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
766 Set retired=None to get all nodes. Otherwise it'll get all the
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
767 retired or non-retired nodes, depending on the flag.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
768 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
769 # flip the sense of the flag if we don't want all of them
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
770 if retired is not None:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
771 retired = not retired
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
772 sql = 'select id from _%s where __retired__ <> %s'%(classname, self.arg)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
773 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
774 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
775 self.cursor.execute(sql, (retired,))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
776 return [x[0] for x in self.cursor.fetchall()]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
777
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
778 def addjournal(self, classname, nodeid, action, params, creator=None,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
779 creation=None):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
780 ''' Journal the Action
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
781 'action' may be:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
782
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
783 'create' or 'set' -- 'params' is a dictionary of property values
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parents:
diff changeset
784 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
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parents:
diff changeset
785 'retire' -- 'params' is None
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
786 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
787 # serialise the parameters now if necessary
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
788 if isinstance(params, type({})):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
789 if action in ('set', 'create'):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
790 params = self.serialise(classname, params)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
791
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
792 # handle supply of the special journalling parameters (usually
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
793 # supplied on importing an existing database)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
794 if creator:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
795 journaltag = creator
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
796 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
797 journaltag = self.curuserid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
798 if creation:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
799 journaldate = creation.serialise()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
800 else:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
801 journaldate = date.Date().serialise()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
802
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
803 # create the journal entry
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parents:
diff changeset
804 cols = ','.join('nodeid date tag action params'.split())
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
805
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
806 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
807 print >>hyperdb.DEBUG, 'addjournal', (nodeid, journaldate,
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
808 journaltag, action, params)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
809
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parents:
diff changeset
810 self.save_journal(classname, cols, nodeid, journaldate,
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parents:
diff changeset
811 journaltag, action, params)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
812
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
813 def save_journal(self, classname, cols, nodeid, journaldate,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
814 journaltag, action, params):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
815 ''' Save the journal entry to the database
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
816 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
817 raise NotImplemented
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
818
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
819 def getjournal(self, classname, nodeid):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
820 ''' get the journal for id
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
821 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
822 # make sure the node exists
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
823 if not self.hasnode(classname, nodeid):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
824 raise IndexError, '%s has no node %s'%(classname, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
825
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
826 cols = ','.join('nodeid date tag action params'.split())
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parents:
diff changeset
827 return self.load_journal(classname, cols, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
828
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
829 def load_journal(self, classname, cols, nodeid):
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parents:
diff changeset
830 ''' Load the journal from the database
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
831 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
832 raise NotImplemented
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
833
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
834 def pack(self, pack_before):
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parents:
diff changeset
835 ''' Delete all journal entries except "create" before 'pack_before'.
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parents:
diff changeset
836 '''
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parents:
diff changeset
837 # get a 'yyyymmddhhmmss' version of the date
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parents:
diff changeset
838 date_stamp = pack_before.serialise()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
839
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
840 # do the delete
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parents:
diff changeset
841 for classname in self.classes.keys():
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parents:
diff changeset
842 sql = "delete from %s__journal where date<%s and "\
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parents:
diff changeset
843 "action<>'create'"%(classname, self.arg)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
844 if __debug__:
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parents:
diff changeset
845 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
846 self.cursor.execute(sql, (date_stamp,))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
847
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
848 def sql_commit(self):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
849 ''' Actually commit to the database.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
850 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
851 self.conn.commit()
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diff changeset
852
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parents:
diff changeset
853 def commit(self):
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parents:
diff changeset
854 ''' Commit the current transactions.
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parents:
diff changeset
855
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parents:
diff changeset
856 Save all data changed since the database was opened or since the
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parents:
diff changeset
857 last commit() or rollback().
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parents:
diff changeset
858 '''
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parents:
diff changeset
859 if __debug__:
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parents:
diff changeset
860 print >>hyperdb.DEBUG, 'commit', (self,)
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parents:
diff changeset
861
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parents:
diff changeset
862 # commit the database
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diff changeset
863 self.sql_commit()
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parents:
diff changeset
864
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parents:
diff changeset
865 # now, do all the other transaction stuff
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parents:
diff changeset
866 reindex = {}
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parents:
diff changeset
867 for method, args in self.transactions:
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parents:
diff changeset
868 reindex[method(*args)] = 1
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parents:
diff changeset
869
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parents:
diff changeset
870 # reindex the nodes that request it
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parents:
diff changeset
871 for classname, nodeid in filter(None, reindex.keys()):
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parents:
diff changeset
872 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid)
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parents:
diff changeset
873 self.getclass(classname).index(nodeid)
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parents:
diff changeset
874
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parents:
diff changeset
875 # save the indexer state
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parents:
diff changeset
876 self.indexer.save_index()
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parents:
diff changeset
877
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parents:
diff changeset
878 # clear out the transactions
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parents:
diff changeset
879 self.transactions = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
880
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parents:
diff changeset
881 def rollback(self):
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parents:
diff changeset
882 ''' Reverse all actions from the current transaction.
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parents:
diff changeset
883
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parents:
diff changeset
884 Undo all the changes made since the database was opened or the last
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parents:
diff changeset
885 commit() or rollback() was performed.
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parents:
diff changeset
886 '''
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parents:
diff changeset
887 if __debug__:
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parents:
diff changeset
888 print >>hyperdb.DEBUG, 'rollback', (self,)
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parents:
diff changeset
889
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parents:
diff changeset
890 # roll back
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parents:
diff changeset
891 self.conn.rollback()
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parents:
diff changeset
892
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parents:
diff changeset
893 # roll back "other" transaction stuff
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parents:
diff changeset
894 for method, args in self.transactions:
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parents:
diff changeset
895 # delete temporary files
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parents:
diff changeset
896 if method == self.doStoreFile:
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parents:
diff changeset
897 self.rollbackStoreFile(*args)
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parents:
diff changeset
898 self.transactions = []
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parents:
diff changeset
899
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parents:
diff changeset
900 def doSaveNode(self, classname, nodeid, node):
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parents:
diff changeset
901 ''' dummy that just generates a reindex event
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parents:
diff changeset
902 '''
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parents:
diff changeset
903 # return the classname, nodeid so we reindex this content
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parents:
diff changeset
904 return (classname, nodeid)
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parents:
diff changeset
905
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parents:
diff changeset
906 def close(self):
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parents:
diff changeset
907 ''' Close off the connection.
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parents:
diff changeset
908 '''
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parents:
diff changeset
909 self.conn.close()
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parents:
diff changeset
910 if self.lockfile is not None:
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parents:
diff changeset
911 locking.release_lock(self.lockfile)
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parents:
diff changeset
912 if self.lockfile is not None:
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parents:
diff changeset
913 self.lockfile.close()
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parents:
diff changeset
914 self.lockfile = None
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parents:
diff changeset
915
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parents:
diff changeset
916 #
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parents:
diff changeset
917 # The base Class class
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parents:
diff changeset
918 #
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diff changeset
919 class Class(hyperdb.Class):
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diff changeset
920 ''' The handle to a particular class of nodes in a hyperdatabase.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
921
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parents:
diff changeset
922 All methods except __repr__ and getnode must be implemented by a
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diff changeset
923 concrete backend Class.
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parents:
diff changeset
924 '''
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parents:
diff changeset
925
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parents:
diff changeset
926 def __init__(self, db, classname, **properties):
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parents:
diff changeset
927 '''Create a new class with a given name and property specification.
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parents:
diff changeset
928
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parents:
diff changeset
929 'classname' must not collide with the name of an existing class,
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parents:
diff changeset
930 or a ValueError is raised. The keyword arguments in 'properties'
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
931 must map names to property objects, or a TypeError is raised.
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diff changeset
932 '''
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parents:
diff changeset
933 if (properties.has_key('creation') or properties.has_key('activity')
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parents:
diff changeset
934 or properties.has_key('creator')):
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diff changeset
935 raise ValueError, '"creation", "activity" and "creator" are '\
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parents:
diff changeset
936 'reserved'
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parents:
diff changeset
937
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parents:
diff changeset
938 self.classname = classname
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parents:
diff changeset
939 self.properties = properties
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parents:
diff changeset
940 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
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parents:
diff changeset
941 self.key = ''
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parents:
diff changeset
942
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parents:
diff changeset
943 # should we journal changes (default yes)
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diff changeset
944 self.do_journal = 1
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parents:
diff changeset
945
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parents:
diff changeset
946 # do the db-related init stuff
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diff changeset
947 db.addclass(self)
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diff changeset
948
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parents:
diff changeset
949 self.auditors = {'create': [], 'set': [], 'retire': []}
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diff changeset
950 self.reactors = {'create': [], 'set': [], 'retire': []}
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parents:
diff changeset
951
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diff changeset
952 def schema(self):
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diff changeset
953 ''' A dumpable version of the schema that we can store in the
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parents:
diff changeset
954 database
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parents:
diff changeset
955 '''
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diff changeset
956 return (self.key, [(x, repr(y)) for x,y in self.properties.items()])
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diff changeset
957
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parents:
diff changeset
958 def enableJournalling(self):
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diff changeset
959 '''Turn journalling on for this class
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diff changeset
960 '''
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diff changeset
961 self.do_journal = 1
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diff changeset
962
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diff changeset
963 def disableJournalling(self):
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diff changeset
964 '''Turn journalling off for this class
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diff changeset
965 '''
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diff changeset
966 self.do_journal = 0
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diff changeset
967
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968 # Editing nodes:
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969 def create(self, **propvalues):
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diff changeset
970 ''' Create a new node of this class and return its id.
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diff changeset
971
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diff changeset
972 The keyword arguments in 'propvalues' map property names to values.
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diff changeset
973
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diff changeset
974 The values of arguments must be acceptable for the types of their
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diff changeset
975 corresponding properties or a TypeError is raised.
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diff changeset
976
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diff changeset
977 If this class has a key property, it must be present and its value
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diff changeset
978 must not collide with other key strings or a ValueError is raised.
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diff changeset
979
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parents:
diff changeset
980 Any other properties on this class that are missing from the
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diff changeset
981 'propvalues' dictionary are set to None.
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diff changeset
982
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diff changeset
983 If an id in a link or multilink property does not refer to a valid
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diff changeset
984 node, an IndexError is raised.
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diff changeset
985 '''
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parents:
diff changeset
986 if propvalues.has_key('id'):
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diff changeset
987 raise KeyError, '"id" is reserved'
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diff changeset
988
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parents:
diff changeset
989 if self.db.journaltag is None:
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diff changeset
990 raise DatabaseError, 'Database open read-only'
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diff changeset
991
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parents:
diff changeset
992 if propvalues.has_key('creation') or propvalues.has_key('activity'):
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diff changeset
993 raise KeyError, '"creation" and "activity" are reserved'
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diff changeset
994
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diff changeset
995 self.fireAuditors('create', None, propvalues)
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diff changeset
996
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
997 # new node's id
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
998 newid = self.db.newid(self.classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
999
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1000 # validate propvalues
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1001 num_re = re.compile('^\d+$')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1002 for key, value in propvalues.items():
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1003 if key == self.key:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1004 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1005 self.lookup(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1006 except KeyError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1007 pass
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1008 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1009 raise ValueError, 'node with key "%s" exists'%value
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1010
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1011 # try to handle this property
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1012 try:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1013 prop = self.properties[key]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1014 except KeyError:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1015 raise KeyError, '"%s" has no property "%s"'%(self.classname,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1016 key)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1017
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1018 if value is not None and isinstance(prop, Link):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1019 if type(value) != type(''):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1020 raise ValueError, 'link value must be String'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1021 link_class = self.properties[key].classname
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parents:
diff changeset
1022 # if it isn't a number, it's a key
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parents:
diff changeset
1023 if not num_re.match(value):
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parents:
diff changeset
1024 try:
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parents:
diff changeset
1025 value = self.db.classes[link_class].lookup(value)
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parents:
diff changeset
1026 except (TypeError, KeyError):
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parents:
diff changeset
1027 raise IndexError, 'new property "%s": %s not a %s'%(
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1028 key, value, link_class)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1029 elif not self.db.getclass(link_class).hasnode(value):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1030 raise IndexError, '%s has no node %s'%(link_class, value)
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parents:
diff changeset
1031
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1032 # save off the value
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1033 propvalues[key] = value
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1034
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parents:
diff changeset
1035 # register the link with the newly linked node
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parents:
diff changeset
1036 if self.do_journal and self.properties[key].do_journal:
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parents:
diff changeset
1037 self.db.addjournal(link_class, value, 'link',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1038 (self.classname, newid, key))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1039
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parents:
diff changeset
1040 elif isinstance(prop, Multilink):
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parents:
diff changeset
1041 if type(value) != type([]):
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parents:
diff changeset
1042 raise TypeError, 'new property "%s" not a list of ids'%key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1043
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1044 # clean up and validate the list of links
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1045 link_class = self.properties[key].classname
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1046 l = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1047 for entry in value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1048 if type(entry) != type(''):
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parents:
diff changeset
1049 raise ValueError, '"%s" multilink value (%r) '\
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1050 'must contain Strings'%(key, value)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1051 # if it isn't a number, it's a key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1052 if not num_re.match(entry):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1053 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1054 entry = self.db.classes[link_class].lookup(entry)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1055 except (TypeError, KeyError):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1056 raise IndexError, 'new property "%s": %s not a %s'%(
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1057 key, entry, self.properties[key].classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1058 l.append(entry)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1059 value = l
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1060 propvalues[key] = value
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1061
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parents:
diff changeset
1062 # handle additions
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1063 for nodeid in value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1064 if not self.db.getclass(link_class).hasnode(nodeid):
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parents:
diff changeset
1065 raise IndexError, '%s has no node %s'%(link_class,
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1066 nodeid)
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parents:
diff changeset
1067 # register the link with the newly linked node
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parents:
diff changeset
1068 if self.do_journal and self.properties[key].do_journal:
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parents:
diff changeset
1069 self.db.addjournal(link_class, nodeid, 'link',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1070 (self.classname, newid, key))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1071
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1072 elif isinstance(prop, String):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1073 if type(value) != type(''):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1074 raise TypeError, 'new property "%s" not a string'%key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1075
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1076 elif isinstance(prop, Password):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1077 if not isinstance(value, password.Password):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1078 raise TypeError, 'new property "%s" not a Password'%key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1079
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1080 elif isinstance(prop, Date):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1081 if value is not None and not isinstance(value, date.Date):
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parents:
diff changeset
1082 raise TypeError, 'new property "%s" not a Date'%key
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1083
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parents:
diff changeset
1084 elif isinstance(prop, Interval):
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parents:
diff changeset
1085 if value is not None and not isinstance(value, date.Interval):
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parents:
diff changeset
1086 raise TypeError, 'new property "%s" not an Interval'%key
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parents:
diff changeset
1087
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parents:
diff changeset
1088 elif value is not None and isinstance(prop, Number):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1089 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1090 float(value)
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parents:
diff changeset
1091 except ValueError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1092 raise TypeError, 'new property "%s" not numeric'%key
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parents:
diff changeset
1093
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1094 elif value is not None and isinstance(prop, Boolean):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1095 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1096 int(value)
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parents:
diff changeset
1097 except ValueError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
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1098 raise TypeError, 'new property "%s" not boolean'%key
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1099
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
1100 # make sure there's data where there needs to be
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1101 for key, prop in self.properties.items():
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parents:
diff changeset
1102 if propvalues.has_key(key):
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
1103 continue
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parents:
diff changeset
1104 if key == self.key:
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parents:
diff changeset
1105 raise ValueError, 'key property "%s" is required'%key
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1106 if isinstance(prop, Multilink):
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Richard Jones <richard@users.sourceforge.net>
parents:
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1107 propvalues[key] = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1108 else:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1109 propvalues[key] = None
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parents:
diff changeset
1110
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parents:
diff changeset
1111 # done
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diff changeset
1112 self.db.addnode(self.classname, newid, propvalues)
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parents:
diff changeset
1113 if self.do_journal:
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parents:
diff changeset
1114 self.db.addjournal(self.classname, newid, 'create', {})
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parents:
diff changeset
1115
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diff changeset
1116 self.fireReactors('create', newid, None)
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parents:
diff changeset
1117
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parents:
diff changeset
1118 return newid
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parents:
diff changeset
1119
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parents:
diff changeset
1120 def export_list(self, propnames, nodeid):
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diff changeset
1121 ''' Export a node - generate a list of CSV-able data in the order
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diff changeset
1122 specified by propnames for the given node.
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parents:
diff changeset
1123 '''
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parents:
diff changeset
1124 properties = self.getprops()
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diff changeset
1125 l = []
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parents:
diff changeset
1126 for prop in propnames:
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diff changeset
1127 proptype = properties[prop]
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diff changeset
1128 value = self.get(nodeid, prop)
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parents:
diff changeset
1129 # "marshal" data where needed
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parents:
diff changeset
1130 if value is None:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1131 pass
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parents:
diff changeset
1132 elif isinstance(proptype, hyperdb.Date):
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parents:
diff changeset
1133 value = value.get_tuple()
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parents:
diff changeset
1134 elif isinstance(proptype, hyperdb.Interval):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1135 value = value.get_tuple()
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parents:
diff changeset
1136 elif isinstance(proptype, hyperdb.Password):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1137 value = str(value)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1138 l.append(repr(value))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1139 return l
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1140
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1141 def import_list(self, propnames, proplist):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1142 ''' Import a node - all information including "id" is present and
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1143 should not be sanity checked. Triggers are not triggered. The
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1144 journal should be initialised using the "creator" and "created"
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1145 information.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1146
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1147 Return the nodeid of the node imported.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1148 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1149 if self.db.journaltag is None:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1150 raise DatabaseError, 'Database open read-only'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1151 properties = self.getprops()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1152
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1153 # make the new node's property map
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1154 d = {}
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1155 for i in range(len(propnames)):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1156 # Use eval to reverse the repr() used to output the CSV
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1157 value = eval(proplist[i])
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1158
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1159 # Figure the property for this column
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1160 propname = propnames[i]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1161 prop = properties[propname]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1162
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1163 # "unmarshal" where necessary
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1164 if propname == 'id':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1165 newid = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1166 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1167 elif value is None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1168 # don't set Nones
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1169 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1170 elif isinstance(prop, hyperdb.Date):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1171 value = date.Date(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1172 elif isinstance(prop, hyperdb.Interval):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1173 value = date.Interval(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1174 elif isinstance(prop, hyperdb.Password):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1175 pwd = password.Password()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1176 pwd.unpack(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1177 value = pwd
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1178 d[propname] = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1179
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1180 # add the node and journal
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1181 self.db.addnode(self.classname, newid, d)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1182
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1183 # extract the extraneous journalling gumpf and nuke it
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1184 if d.has_key('creator'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1185 creator = d['creator']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1186 del d['creator']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1187 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1188 creator = None
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1189 if d.has_key('creation'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1190 creation = d['creation']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1191 del d['creation']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1192 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1193 creation = None
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1194 if d.has_key('activity'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1195 del d['activity']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1196 self.db.addjournal(self.classname, newid, 'create', {}, creator,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1197 creation)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1198 return newid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1199
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1200 _marker = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1201 def get(self, nodeid, propname, default=_marker, cache=1):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1202 '''Get the value of a property on an existing node of this class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1203
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1204 'nodeid' must be the id of an existing node of this class or an
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1205 IndexError is raised. 'propname' must be the name of a property
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1206 of this class or a KeyError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1207
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1208 'cache' indicates whether the transaction cache should be queried
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1209 for the node. If the node has been modified and you need to
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1210 determine what its values prior to modification are, you need to
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1211 set cache=0.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1212 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1213 if propname == 'id':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1214 return nodeid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1215
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1216 # get the node's dict
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1217 d = self.db.getnode(self.classname, nodeid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1218
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1219 if propname == 'creation':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1220 if d.has_key('creation'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1221 return d['creation']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1222 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1223 return date.Date()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1224 if propname == 'activity':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1225 if d.has_key('activity'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1226 return d['activity']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1227 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1228 return date.Date()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1229 if propname == 'creator':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1230 if d.has_key('creator'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1231 return d['creator']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1232 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1233 return self.db.curuserid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1234
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1235 # get the property (raises KeyErorr if invalid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1236 prop = self.properties[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1237
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1238 if not d.has_key(propname):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1239 if default is self._marker:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1240 if isinstance(prop, Multilink):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1241 return []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1242 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1243 return None
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1244 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1245 return default
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1246
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1247 # don't pass our list to other code
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1248 if isinstance(prop, Multilink):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1249 return d[propname][:]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1250
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1251 return d[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1252
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1253 def getnode(self, nodeid, cache=1):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1254 ''' Return a convenience wrapper for the node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1255
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1256 'nodeid' must be the id of an existing node of this class or an
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1257 IndexError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1258
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1259 'cache' indicates whether the transaction cache should be queried
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1260 for the node. If the node has been modified and you need to
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1261 determine what its values prior to modification are, you need to
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1262 set cache=0.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1263 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1264 return Node(self, nodeid, cache=cache)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1265
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1266 def set(self, nodeid, **propvalues):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1267 '''Modify a property on an existing node of this class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1268
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1269 'nodeid' must be the id of an existing node of this class or an
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1270 IndexError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1271
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1272 Each key in 'propvalues' must be the name of a property of this
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1273 class or a KeyError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1274
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1275 All values in 'propvalues' must be acceptable types for their
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1276 corresponding properties or a TypeError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1277
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1278 If the value of the key property is set, it must not collide with
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1279 other key strings or a ValueError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1280
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1281 If the value of a Link or Multilink property contains an invalid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1282 node id, a ValueError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1283 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1284 if not propvalues:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1285 return propvalues
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1286
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1287 if propvalues.has_key('creation') or propvalues.has_key('activity'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1288 raise KeyError, '"creation" and "activity" are reserved'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1289
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1290 if propvalues.has_key('id'):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1291 raise KeyError, '"id" is reserved'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1292
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1293 if self.db.journaltag is None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1294 raise DatabaseError, 'Database open read-only'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1295
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1296 self.fireAuditors('set', nodeid, propvalues)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1297 # Take a copy of the node dict so that the subsequent set
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1298 # operation doesn't modify the oldvalues structure.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1299 # XXX used to try the cache here first
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1300 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1301
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1302 node = self.db.getnode(self.classname, nodeid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1303 if self.is_retired(nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1304 raise IndexError, 'Requested item is retired'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1305 num_re = re.compile('^\d+$')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1306
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1307 # if the journal value is to be different, store it in here
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1308 journalvalues = {}
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1309
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1310 # remember the add/remove stuff for multilinks, making it easier
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1311 # for the Database layer to do its stuff
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1312 multilink_changes = {}
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1313
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1314 for propname, value in propvalues.items():
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1315 # check to make sure we're not duplicating an existing key
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1316 if propname == self.key and node[propname] != value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1317 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1318 self.lookup(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1319 except KeyError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1320 pass
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1321 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1322 raise ValueError, 'node with key "%s" exists'%value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1323
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1324 # this will raise the KeyError if the property isn't valid
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1325 # ... we don't use getprops() here because we only care about
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1326 # the writeable properties.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1327 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1328 prop = self.properties[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1329 except KeyError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1330 raise KeyError, '"%s" has no property named "%s"'%(
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1331 self.classname, propname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1332
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1333 # if the value's the same as the existing value, no sense in
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1334 # doing anything
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1335 current = node.get(propname, None)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1336 if value == current:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1337 del propvalues[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1338 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1339 journalvalues[propname] = current
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1340
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1341 # do stuff based on the prop type
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1342 if isinstance(prop, Link):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1343 link_class = prop.classname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1344 # if it isn't a number, it's a key
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1345 if value is not None and not isinstance(value, type('')):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1346 raise ValueError, 'property "%s" link value be a string'%(
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1347 propname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1348 if isinstance(value, type('')) and not num_re.match(value):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1349 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1350 value = self.db.classes[link_class].lookup(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1351 except (TypeError, KeyError):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1352 raise IndexError, 'new property "%s": %s not a %s'%(
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1353 propname, value, prop.classname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1354
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1355 if (value is not None and
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1356 not self.db.getclass(link_class).hasnode(value)):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1357 raise IndexError, '%s has no node %s'%(link_class, value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1358
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1359 if self.do_journal and prop.do_journal:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1360 # register the unlink with the old linked node
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1361 if node[propname] is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1362 self.db.addjournal(link_class, node[propname], 'unlink',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1363 (self.classname, nodeid, propname))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1364
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1365 # register the link with the newly linked node
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1366 if value is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1367 self.db.addjournal(link_class, value, 'link',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1368 (self.classname, nodeid, propname))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1369
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1370 elif isinstance(prop, Multilink):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1371 if type(value) != type([]):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1372 raise TypeError, 'new property "%s" not a list of'\
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1373 ' ids'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1374 link_class = self.properties[propname].classname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1375 l = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1376 for entry in value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1377 # if it isn't a number, it's a key
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1378 if type(entry) != type(''):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1379 raise ValueError, 'new property "%s" link value ' \
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1380 'must be a string'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1381 if not num_re.match(entry):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1382 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1383 entry = self.db.classes[link_class].lookup(entry)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1384 except (TypeError, KeyError):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1385 raise IndexError, 'new property "%s": %s not a %s'%(
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1386 propname, entry,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1387 self.properties[propname].classname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1388 l.append(entry)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1389 value = l
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1390 propvalues[propname] = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1391
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1392 # figure the journal entry for this property
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1393 add = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1394 remove = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1395
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1396 # handle removals
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1397 if node.has_key(propname):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1398 l = node[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1399 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1400 l = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1401 for id in l[:]:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1402 if id in value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1403 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1404 # register the unlink with the old linked node
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1405 if self.do_journal and self.properties[propname].do_journal:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1406 self.db.addjournal(link_class, id, 'unlink',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1407 (self.classname, nodeid, propname))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1408 l.remove(id)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1409 remove.append(id)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1410
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1411 # handle additions
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1412 for id in value:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1413 if not self.db.getclass(link_class).hasnode(id):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1414 raise IndexError, '%s has no node %s'%(link_class, id)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1415 if id in l:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1416 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1417 # register the link with the newly linked node
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1418 if self.do_journal and self.properties[propname].do_journal:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1419 self.db.addjournal(link_class, id, 'link',
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1420 (self.classname, nodeid, propname))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1421 l.append(id)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1422 add.append(id)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1423
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1424 # figure the journal entry
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1425 l = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1426 if add:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1427 l.append(('+', add))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1428 if remove:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1429 l.append(('-', remove))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1430 multilink_changes[propname] = (add, remove)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1431 if l:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1432 journalvalues[propname] = tuple(l)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1433
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1434 elif isinstance(prop, String):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1435 if value is not None and type(value) != type(''):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1436 raise TypeError, 'new property "%s" not a string'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1437
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1438 elif isinstance(prop, Password):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1439 if not isinstance(value, password.Password):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1440 raise TypeError, 'new property "%s" not a Password'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1441 propvalues[propname] = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1442
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1443 elif value is not None and isinstance(prop, Date):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1444 if not isinstance(value, date.Date):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1445 raise TypeError, 'new property "%s" not a Date'% propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1446 propvalues[propname] = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1447
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1448 elif value is not None and isinstance(prop, Interval):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1449 if not isinstance(value, date.Interval):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1450 raise TypeError, 'new property "%s" not an '\
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1451 'Interval'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1452 propvalues[propname] = value
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1453
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1454 elif value is not None and isinstance(prop, Number):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1455 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1456 float(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1457 except ValueError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1458 raise TypeError, 'new property "%s" not numeric'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1459
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1460 elif value is not None and isinstance(prop, Boolean):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1461 try:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1462 int(value)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1463 except ValueError:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1464 raise TypeError, 'new property "%s" not boolean'%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1465
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1466 # nothing to do?
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1467 if not propvalues:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1468 return propvalues
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1469
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1470 # do the set, and journal it
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1471 self.db.setnode(self.classname, nodeid, propvalues, multilink_changes)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1472
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1473 if self.do_journal:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1474 self.db.addjournal(self.classname, nodeid, 'set', journalvalues)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1475
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1476 self.fireReactors('set', nodeid, oldvalues)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1477
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1478 return propvalues
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1479
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1480 def retire(self, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1481 '''Retire a node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1482
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1483 The properties on the node remain available from the get() method,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1484 and the node's id is never reused.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1485
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1486 Retired nodes are not returned by the find(), list(), or lookup()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1487 methods, and other nodes may reuse the values of their key properties.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1488 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1489 if self.db.journaltag is None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1490 raise DatabaseError, 'Database open read-only'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1491
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1492 self.fireAuditors('retire', nodeid, None)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1493
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1494 # use the arg for __retired__ to cope with any odd database type
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1495 # conversion (hello, sqlite)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1496 sql = 'update _%s set __retired__=%s where id=%s'%(self.classname,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1497 self.db.arg, self.db.arg)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1498 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1499 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1500 self.db.cursor.execute(sql, (1, nodeid))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1501
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1502 self.fireReactors('retire', nodeid, None)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1503
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1504 def is_retired(self, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1505 '''Return true if the node is rerired
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1506 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1507 sql = 'select __retired__ from _%s where id=%s'%(self.classname,
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1508 self.db.arg)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1509 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1510 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1511 self.db.cursor.execute(sql, (nodeid,))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1512 return int(self.db.sql_fetchone()[0])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1513
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1514 def destroy(self, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1515 '''Destroy a node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1516
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1517 WARNING: this method should never be used except in extremely rare
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1518 situations where there could never be links to the node being
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1519 deleted
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1520 WARNING: use retire() instead
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1521 WARNING: the properties of this node will not be available ever again
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1522 WARNING: really, use retire() instead
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1523
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1524 Well, I think that's enough warnings. This method exists mostly to
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1525 support the session storage of the cgi interface.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1526
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1527 The node is completely removed from the hyperdb, including all journal
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1528 entries. It will no longer be available, and will generally break code
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1529 if there are any references to the node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1530 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1531 if self.db.journaltag is None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1532 raise DatabaseError, 'Database open read-only'
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1533 self.db.destroynode(self.classname, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1534
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1535 def history(self, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1536 '''Retrieve the journal of edits on a particular node.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1537
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1538 'nodeid' must be the id of an existing node of this class or an
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1539 IndexError is raised.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1540
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1541 The returned list contains tuples of the form
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1542
1410
3a853f1c20b5 backporting fixes from HEAD
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parents: 1366
diff changeset
1543 (nodeid, date, tag, action, params)
1356
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1544
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1545 'date' is a Timestamp object specifying the time of the change and
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1546 'tag' is the journaltag specified when the database was opened.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1547 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1548 if not self.do_journal:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1549 raise ValueError, 'Journalling is disabled for this class'
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parents:
diff changeset
1550 return self.db.getjournal(self.classname, nodeid)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1551
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1552 # Locating nodes:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1553 def hasnode(self, nodeid):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1554 '''Determine if the given nodeid actually exists
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1555 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1556 return self.db.hasnode(self.classname, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1557
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1558 def setkey(self, propname):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1559 '''Select a String property of this class to be the key property.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1560
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1561 'propname' must be the name of a String property of this class or
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1562 None, or a TypeError is raised. The values of the key property on
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parents:
diff changeset
1563 all existing nodes must be unique or a ValueError is raised.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1564 '''
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parents:
diff changeset
1565 # XXX create an index on the key prop column
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parents:
diff changeset
1566 prop = self.getprops()[propname]
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parents:
diff changeset
1567 if not isinstance(prop, String):
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parents:
diff changeset
1568 raise TypeError, 'key properties must be String'
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1569 self.key = propname
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parents:
diff changeset
1570
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parents:
diff changeset
1571 def getkey(self):
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parents:
diff changeset
1572 '''Return the name of the key property for this class or None.'''
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parents:
diff changeset
1573 return self.key
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parents:
diff changeset
1574
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1575 def labelprop(self, default_to_id=0):
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parents:
diff changeset
1576 ''' Return the property name for a label for the given node.
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parents:
diff changeset
1577
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parents:
diff changeset
1578 This method attempts to generate a consistent label for the node.
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parents:
diff changeset
1579 It tries the following in order:
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parents:
diff changeset
1580 1. key property
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parents:
diff changeset
1581 2. "name" property
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parents:
diff changeset
1582 3. "title" property
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parents:
diff changeset
1583 4. first property from the sorted property name list
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1584 '''
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parents:
diff changeset
1585 k = self.getkey()
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parents:
diff changeset
1586 if k:
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parents:
diff changeset
1587 return k
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parents:
diff changeset
1588 props = self.getprops()
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parents:
diff changeset
1589 if props.has_key('name'):
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parents:
diff changeset
1590 return 'name'
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parents:
diff changeset
1591 elif props.has_key('title'):
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parents:
diff changeset
1592 return 'title'
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parents:
diff changeset
1593 if default_to_id:
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parents:
diff changeset
1594 return 'id'
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parents:
diff changeset
1595 props = props.keys()
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parents:
diff changeset
1596 props.sort()
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parents:
diff changeset
1597 return props[0]
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parents:
diff changeset
1598
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parents:
diff changeset
1599 def lookup(self, keyvalue):
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parents:
diff changeset
1600 '''Locate a particular node by its key property and return its id.
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parents:
diff changeset
1601
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parents:
diff changeset
1602 If this class has no key property, a TypeError is raised. If the
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parents:
diff changeset
1603 'keyvalue' matches one of the values for the key property among
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parents:
diff changeset
1604 the nodes in this class, the matching node's id is returned;
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parents:
diff changeset
1605 otherwise a KeyError is raised.
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parents:
diff changeset
1606 '''
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parents:
diff changeset
1607 if not self.key:
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parents:
diff changeset
1608 raise TypeError, 'No key property set for class %s'%self.classname
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parents:
diff changeset
1609
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parents:
diff changeset
1610 # use the arg to handle any odd database type conversion (hello,
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parents:
diff changeset
1611 # sqlite)
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diff changeset
1612 sql = "select id from _%s where _%s=%s and __retired__ <> %s"%(
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diff changeset
1613 self.classname, self.key, self.db.arg, self.db.arg)
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parents:
diff changeset
1614 self.db.sql(sql, (keyvalue, 1))
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parents:
diff changeset
1615
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parents:
diff changeset
1616 # see if there was a result that's not retired
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diff changeset
1617 row = self.db.sql_fetchone()
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parents:
diff changeset
1618 if not row:
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parents:
diff changeset
1619 raise KeyError, 'No key (%s) value "%s" for "%s"'%(self.key,
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parents:
diff changeset
1620 keyvalue, self.classname)
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diff changeset
1621
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diff changeset
1622 # return the id
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diff changeset
1623 return row[0]
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parents:
diff changeset
1624
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parents:
diff changeset
1625 def find(self, **propspec):
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diff changeset
1626 '''Get the ids of nodes in this class which link to the given nodes.
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parents:
diff changeset
1627
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parents:
diff changeset
1628 'propspec' consists of keyword args propname=nodeid or
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parents:
diff changeset
1629 propname={nodeid:1, }
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parents:
diff changeset
1630 'propname' must be the name of a property in this class, or a
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parents:
diff changeset
1631 KeyError is raised. That property must be a Link or Multilink
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parents:
diff changeset
1632 property, or a TypeError is raised.
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parents:
diff changeset
1633
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diff changeset
1634 Any node in this class whose 'propname' property links to any of the
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parents:
diff changeset
1635 nodeids will be returned. Used by the full text indexing, which knows
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diff changeset
1636 that "foo" occurs in msg1, msg3 and file7, so we have hits on these
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parents:
diff changeset
1637 issues:
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parents:
diff changeset
1638
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diff changeset
1639 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
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diff changeset
1640 '''
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parents:
diff changeset
1641 if __debug__:
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diff changeset
1642 print >>hyperdb.DEBUG, 'find', (self, propspec)
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parents:
diff changeset
1643
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parents:
diff changeset
1644 # shortcut
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parents:
diff changeset
1645 if not propspec:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1646 return []
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parents:
diff changeset
1647
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parents:
diff changeset
1648 # validate the args
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diff changeset
1649 props = self.getprops()
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diff changeset
1650 propspec = propspec.items()
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diff changeset
1651 for propname, nodeids in propspec:
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diff changeset
1652 # check the prop is OK
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diff changeset
1653 prop = props[propname]
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diff changeset
1654 if not isinstance(prop, Link) and not isinstance(prop, Multilink):
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parents:
diff changeset
1655 raise TypeError, "'%s' not a Link/Multilink property"%propname
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parents:
diff changeset
1656
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diff changeset
1657 # first, links
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diff changeset
1658 where = []
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parents:
diff changeset
1659 allvalues = ()
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diff changeset
1660 a = self.db.arg
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diff changeset
1661 for prop, values in propspec:
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diff changeset
1662 if not isinstance(props[prop], hyperdb.Link):
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diff changeset
1663 continue
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diff changeset
1664 if type(values) is type(''):
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diff changeset
1665 allvalues += (values,)
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diff changeset
1666 where.append('_%s = %s'%(prop, a))
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diff changeset
1667 else:
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diff changeset
1668 allvalues += tuple(values.keys())
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diff changeset
1669 where.append('_%s in (%s)'%(prop, ','.join([a]*len(values))))
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diff changeset
1670 tables = []
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diff changeset
1671 if where:
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diff changeset
1672 tables.append('select id as nodeid from _%s where %s'%(
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diff changeset
1673 self.classname, ' and '.join(where)))
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diff changeset
1674
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diff changeset
1675 # now multilinks
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diff changeset
1676 for prop, values in propspec:
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diff changeset
1677 if not isinstance(props[prop], hyperdb.Multilink):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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diff changeset
1678 continue
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1679 if type(values) is type(''):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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diff changeset
1680 allvalues += (values,)
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diff changeset
1681 s = a
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diff changeset
1682 else:
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diff changeset
1683 allvalues += tuple(values.keys())
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diff changeset
1684 s = ','.join([a]*len(values))
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diff changeset
1685 tables.append('select nodeid from %s_%s where linkid in (%s)'%(
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diff changeset
1686 self.classname, prop, s))
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diff changeset
1687 sql = '\nunion\n'.join(tables)
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diff changeset
1688 self.db.sql(sql, allvalues)
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diff changeset
1689 l = [x[0] for x in self.db.sql_fetchall()]
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diff changeset
1690 if __debug__:
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diff changeset
1691 print >>hyperdb.DEBUG, 'find ... ', l
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parents:
diff changeset
1692 return l
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parents:
diff changeset
1693
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diff changeset
1694 def stringFind(self, **requirements):
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diff changeset
1695 '''Locate a particular node by matching a set of its String
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diff changeset
1696 properties in a caseless search.
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diff changeset
1697
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diff changeset
1698 If the property is not a String property, a TypeError is raised.
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diff changeset
1699
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diff changeset
1700 The return is a list of the id of all nodes that match.
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diff changeset
1701 '''
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diff changeset
1702 where = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1703 args = []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1704 for propname in requirements.keys():
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1705 prop = self.properties[propname]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1706 if isinstance(not prop, String):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1707 raise TypeError, "'%s' not a String property"%propname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1708 where.append(propname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1709 args.append(requirements[propname].lower())
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1710
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1711 # generate the where clause
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1712 s = ' and '.join(['_%s=%s'%(col, self.db.arg) for col in where])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1713 sql = 'select id from _%s where %s'%(self.classname, s)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1714 self.db.sql(sql, tuple(args))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1715 l = [x[0] for x in self.db.sql_fetchall()]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1716 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1717 print >>hyperdb.DEBUG, 'find ... ', l
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1718 return l
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1719
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1720 def list(self):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1721 ''' Return a list of the ids of the active nodes in this class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1722 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1723 return self.db.getnodeids(self.classname, retired=0)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1724
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1725 def filter(self, search_matches, filterspec, sort=(None,None),
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1726 group=(None,None)):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1727 ''' Return a list of the ids of the active nodes in this class that
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1728 match the 'filter' spec, sorted by the group spec and then the
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1729 sort spec
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1730
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1731 "filterspec" is {propname: value(s)}
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1732 "sort" and "group" are (dir, prop) where dir is '+', '-' or None
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1733 and prop is a prop name or None
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1734 "search_matches" is {nodeid: marker}
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1735
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1736 The filter must match all properties specificed - but if the
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1737 property value to match is a list, any one of the values in the
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1738 list may match for that property to match.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1739 '''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1740 # just don't bother if the full-text search matched diddly
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1741 if search_matches == {}:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1742 return []
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1743
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1744 cn = self.classname
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1745
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1746 # figure the WHERE clause from the filterspec
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1747 props = self.getprops()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1748 frum = ['_'+cn]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1749 where = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1750 args = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1751 a = self.db.arg
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1752 for k, v in filterspec.items():
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1753 propclass = props[k]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1754 # now do other where clause stuff
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1755 if isinstance(propclass, Multilink):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1756 tn = '%s_%s'%(cn, k)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1757 frum.append(tn)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1758 if isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1759 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1760 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1761 args = args + v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1762 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1763 where.append('id=%s.nodeid and %s.linkid = %s'%(tn, tn, a))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1764 args.append(v)
1366
1cc9c6bc17bd merge fixes from HEAD
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parents: 1356
diff changeset
1765 elif k == 'id':
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1766 if isinstance(v, type([])):
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1767 s = ','.join([a for x in v])
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1768 where.append('%s in (%s)'%(k, s))
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1769 args = args + v
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1770 else:
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1771 where.append('%s=%s'%(k, a))
1cc9c6bc17bd merge fixes from HEAD
Richard Jones <richard@users.sourceforge.net>
parents: 1356
diff changeset
1772 args.append(v)
1356
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1773 elif isinstance(propclass, String):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1774 if not isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1775 v = [v]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1776
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1777 # Quote the bits in the string that need it and then embed
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1778 # in a "substring" search. Note - need to quote the '%' so
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1779 # they make it through the python layer happily
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1780 v = ['%%'+self.db.sql_stringquote(s)+'%%' for s in v]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1781
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1782 # now add to the where clause
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1783 where.append(' or '.join(["_%s LIKE '%s'"%(k, s) for s in v]))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1784 # note: args are embedded in the query string now
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1785 elif isinstance(propclass, Link):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1786 if isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1787 if '-1' in v:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1788 v.remove('-1')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1789 xtra = ' or _%s is NULL'%k
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1790 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1791 xtra = ''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1792 if v:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1793 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1794 where.append('(_%s in (%s)%s)'%(k, s, xtra))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1795 args = args + v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1796 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1797 where.append('_%s is NULL'%k)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1798 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1799 if v == '-1':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1800 v = None
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1801 where.append('_%s is NULL'%k)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1802 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1803 where.append('_%s=%s'%(k, a))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1804 args.append(v)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1805 elif isinstance(propclass, Date):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1806 if isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1807 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1808 where.append('_%s in (%s)'%(k, s))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1809 args = args + [date.Date(x).serialise() for x in v]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1810 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1811 where.append('_%s=%s'%(k, a))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1812 args.append(date.Date(v).serialise())
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1813 elif isinstance(propclass, Interval):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1814 if isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1815 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1816 where.append('_%s in (%s)'%(k, s))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1817 args = args + [date.Interval(x).serialise() for x in v]
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1818 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1819 where.append('_%s=%s'%(k, a))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1820 args.append(date.Interval(v).serialise())
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1821 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1822 if isinstance(v, type([])):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1823 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1824 where.append('_%s in (%s)'%(k, s))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1825 args = args + v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1826 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1827 where.append('_%s=%s'%(k, a))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1828 args.append(v)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1829
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1830 # add results of full text search
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1831 if search_matches is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1832 v = search_matches.keys()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1833 s = ','.join([a for x in v])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1834 where.append('id in (%s)'%s)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1835 args = args + v
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1836
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1837 # "grouping" is just the first-order sorting in the SQL fetch
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1838 # can modify it...)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1839 orderby = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1840 ordercols = []
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
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parents:
diff changeset
1841 if group[0] is not None and group[1] is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1842 if group[0] != '-':
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1843 orderby.append('_'+group[1])
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1844 ordercols.append('_'+group[1])
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1845 else:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1846 orderby.append('_'+group[1]+' desc')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1847 ordercols.append('_'+group[1])
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1848
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1849 # now add in the sorting
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1850 group = ''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1851 if sort[0] is not None and sort[1] is not None:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1852 direction, colname = sort
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1853 if direction != '-':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1854 if colname == 'id':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1855 orderby.append(colname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1856 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1857 orderby.append('_'+colname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1858 ordercols.append('_'+colname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1859 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1860 if colname == 'id':
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1861 orderby.append(colname+' desc')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1862 ordercols.append(colname)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1863 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1864 orderby.append('_'+colname+' desc')
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1865 ordercols.append('_'+colname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1866
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1867 # construct the SQL
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1868 frum = ','.join(frum)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1869 if where:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1870 where = ' where ' + (' and '.join(where))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1871 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1872 where = ''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1873 cols = ['id']
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1874 if orderby:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1875 cols = cols + ordercols
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1876 order = ' order by %s'%(','.join(orderby))
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1877 else:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1878 order = ''
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1879 cols = ','.join(cols)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1880 sql = 'select %s from %s %s%s%s'%(cols, frum, where, group, order)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1881 args = tuple(args)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1882 if __debug__:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1883 print >>hyperdb.DEBUG, 'filter', (self, sql, args)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1884 self.db.cursor.execute(sql, args)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1885 l = self.db.cursor.fetchall()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1886
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1887 # return the IDs (the first column)
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1888 # XXX The filter(None, l) bit is sqlite-specific... if there's _NO_
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1889 # XXX matches to a fetch, it returns NULL instead of nothing!?!
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1890 return filter(None, [row[0] for row in l])
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1891
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1892 def count(self):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1893 '''Get the number of nodes in this class.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1894
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1895 If the returned integer is 'numnodes', the ids of all the nodes
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parents:
diff changeset
1896 in this class run from 1 to numnodes, and numnodes+1 will be the
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1897 id of the next node to be created in this class.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1898 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1899 return self.db.countnodes(self.classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1900
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1901 # Manipulating properties:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1902 def getprops(self, protected=1):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1903 '''Return a dictionary mapping property names to property objects.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1904 If the "protected" flag is true, we include protected properties -
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1905 those which may not be modified.
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1906 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1907 d = self.properties.copy()
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1908 if protected:
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1909 d['id'] = String()
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parents:
diff changeset
1910 d['creation'] = hyperdb.Date()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1911 d['activity'] = hyperdb.Date()
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parents:
diff changeset
1912 d['creator'] = hyperdb.Link('user')
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1913 return d
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1914
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1915 def addprop(self, **properties):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1916 '''Add properties to this class.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1917
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parents:
diff changeset
1918 The keyword arguments in 'properties' must map names to property
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parents:
diff changeset
1919 objects, or a TypeError is raised. None of the keys in 'properties'
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parents:
diff changeset
1920 may collide with the names of existing properties, or a ValueError
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1921 is raised before any properties have been added.
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parents:
diff changeset
1922 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1923 for key in properties.keys():
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parents:
diff changeset
1924 if self.properties.has_key(key):
83f33642d220 [[Metadata associated with this commit was garbled during conversion from CVS
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1925 raise ValueError, key
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parents:
diff changeset
1926 self.properties.update(properties)
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parents:
diff changeset
1927
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diff changeset
1928 def index(self, nodeid):
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diff changeset
1929 '''Add (or refresh) the node to search indexes
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parents:
diff changeset
1930 '''
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diff changeset
1931 # find all the String properties that have indexme
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diff changeset
1932 for prop, propclass in self.getprops().items():
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parents:
diff changeset
1933 if isinstance(propclass, String) and propclass.indexme:
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parents:
diff changeset
1934 try:
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diff changeset
1935 value = str(self.get(nodeid, prop))
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diff changeset
1936 except IndexError:
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diff changeset
1937 # node no longer exists - entry should be removed
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diff changeset
1938 self.db.indexer.purge_entry((self.classname, nodeid, prop))
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diff changeset
1939 else:
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diff changeset
1940 # and index them under (classname, nodeid, property)
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diff changeset
1941 self.db.indexer.add_text((self.classname, nodeid, prop),
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diff changeset
1942 value)
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parents:
diff changeset
1943
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diff changeset
1944
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diff changeset
1945 #
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diff changeset
1946 # Detector interface
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diff changeset
1947 #
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1948 def audit(self, event, detector):
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1949 '''Register a detector
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diff changeset
1950 '''
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1951 l = self.auditors[event]
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diff changeset
1952 if detector not in l:
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diff changeset
1953 self.auditors[event].append(detector)
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parents:
diff changeset
1954
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diff changeset
1955 def fireAuditors(self, action, nodeid, newvalues):
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diff changeset
1956 '''Fire all registered auditors.
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diff changeset
1957 '''
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1958 for audit in self.auditors[action]:
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diff changeset
1959 audit(self.db, self, nodeid, newvalues)
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diff changeset
1960
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1961 def react(self, event, detector):
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1962 '''Register a detector
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diff changeset
1963 '''
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1964 l = self.reactors[event]
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1965 if detector not in l:
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1966 self.reactors[event].append(detector)
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diff changeset
1967
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diff changeset
1968 def fireReactors(self, action, nodeid, oldvalues):
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diff changeset
1969 '''Fire all registered reactors.
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diff changeset
1970 '''
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diff changeset
1971 for react in self.reactors[action]:
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diff changeset
1972 react(self.db, self, nodeid, oldvalues)
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diff changeset
1973
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1974 class FileClass(Class):
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diff changeset
1975 '''This class defines a large chunk of data. To support this, it has a
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diff changeset
1976 mandatory String property "content" which is typically saved off
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diff changeset
1977 externally to the hyperdb.
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diff changeset
1978
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diff changeset
1979 The default MIME type of this data is defined by the
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diff changeset
1980 "default_mime_type" class attribute, which may be overridden by each
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diff changeset
1981 node if the class defines a "type" String property.
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diff changeset
1982 '''
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1983 default_mime_type = 'text/plain'
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1984
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1985 def create(self, **propvalues):
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1986 ''' snaffle the file propvalue and store in a file
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1987 '''
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1988 content = propvalues['content']
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1989 del propvalues['content']
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1990 newid = Class.create(self, **propvalues)
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1991 self.db.storefile(self.classname, newid, None, content)
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1992 return newid
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1993
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1994 def import_list(self, propnames, proplist):
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1995 ''' Trap the "content" property...
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1996 '''
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1997 # dupe this list so we don't affect others
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1998 propnames = propnames[:]
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1999
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2000 # extract the "content" property from the proplist
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2001 i = propnames.index('content')
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2002 content = eval(proplist[i])
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2003 del propnames[i]
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2004 del proplist[i]
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2005
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2006 # do the normal import
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2007 newid = Class.import_list(self, propnames, proplist)
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2008
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2009 # save off the "content" file
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2010 self.db.storefile(self.classname, newid, None, content)
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2011 return newid
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2012
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2013 _marker = []
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2014 def get(self, nodeid, propname, default=_marker, cache=1):
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2015 ''' trap the content propname and get it from the file
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2016 '''
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2017
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2018 poss_msg = 'Possibly a access right configuration problem.'
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2019 if propname == 'content':
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2020 try:
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2021 return self.db.getfile(self.classname, nodeid, None)
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2022 except IOError, (strerror):
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2023 # BUG: by catching this we donot see an error in the log.
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2024 return 'ERROR reading file: %s%s\n%s\n%s'%(
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2025 self.classname, nodeid, poss_msg, strerror)
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2026 if default is not self._marker:
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2027 return Class.get(self, nodeid, propname, default, cache=cache)
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2028 else:
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2029 return Class.get(self, nodeid, propname, cache=cache)
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2030
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2031 def getprops(self, protected=1):
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2032 ''' In addition to the actual properties on the node, these methods
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2033 provide the "content" property. If the "protected" flag is true,
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2034 we include protected properties - those which may not be
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2035 modified.
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2036 '''
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2037 d = Class.getprops(self, protected=protected).copy()
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2038 d['content'] = hyperdb.String()
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2039 return d
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2040
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2041 def index(self, nodeid):
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2042 ''' Index the node in the search index.
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2043
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2044 We want to index the content in addition to the normal String
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2045 property indexing.
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2046 '''
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2047 # perform normal indexing
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2048 Class.index(self, nodeid)
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2049
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2050 # get the content to index
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2051 content = self.get(nodeid, 'content')
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2052
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2053 # figure the mime type
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2054 if self.properties.has_key('type'):
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2055 mime_type = self.get(nodeid, 'type')
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2056 else:
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2057 mime_type = self.default_mime_type
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2058
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2059 # and index!
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2060 self.db.indexer.add_text((self.classname, nodeid, 'content'), content,
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2061 mime_type)
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2062
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2063 # XXX deviation from spec - was called ItemClass
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2064 class IssueClass(Class, roundupdb.IssueClass):
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2065 # Overridden methods:
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2066 def __init__(self, db, classname, **properties):
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2067 '''The newly-created class automatically includes the "messages",
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2068 "files", "nosy", and "superseder" properties. If the 'properties'
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2069 dictionary attempts to specify any of these properties or a
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2070 "creation" or "activity" property, a ValueError is raised.
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2071 '''
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2072 if not properties.has_key('title'):
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2073 properties['title'] = hyperdb.String(indexme='yes')
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2074 if not properties.has_key('messages'):
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2075 properties['messages'] = hyperdb.Multilink("msg")
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2076 if not properties.has_key('files'):
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2077 properties['files'] = hyperdb.Multilink("file")
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2078 if not properties.has_key('nosy'):
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2079 # note: journalling is turned off as it really just wastes
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2080 # space. this behaviour may be overridden in an instance
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2081 properties['nosy'] = hyperdb.Multilink("user", do_journal="no")
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2082 if not properties.has_key('superseder'):
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2083 properties['superseder'] = hyperdb.Multilink(classname)
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2084 Class.__init__(self, db, classname, **properties)
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2085
Roundup Issue Tracker: http://roundup-tracker.org/