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1 # $Id: rdbms_common.py,v 1.5 2002-09-19 03:56:20 richard Exp $
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2
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3 # standard python modules
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4 import sys, os, time, re, errno, weakref, copy
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5
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6 # roundup modules
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7 from roundup import hyperdb, date, password, roundupdb, security
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8 from roundup.hyperdb import String, Password, Date, Interval, Link, \
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9 Multilink, DatabaseError, Boolean, Number
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10
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11 # support
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12 from blobfiles import FileStorage
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13 from roundup.indexer import Indexer
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14 from sessions import Sessions
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15
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16 class Database(FileStorage, hyperdb.Database, roundupdb.Database):
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17 # flag to set on retired entries
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18 RETIRED_FLAG = '__hyperdb_retired'
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19
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20 def __init__(self, config, journaltag=None):
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21 ''' Open the database and load the schema from it.
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22 '''
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23 self.config, self.journaltag = config, journaltag
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24 self.dir = config.DATABASE
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25 self.classes = {}
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26 self.indexer = Indexer(self.dir)
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27 self.sessions = Sessions(self.config)
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28 self.security = security.Security(self)
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29
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30 # additional transaction support for external files and the like
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31 self.transactions = []
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32
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33 # open a connection to the database, creating the "conn" attribute
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34 self.open_connection()
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35
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36 def open_connection(self):
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37 ''' Open a connection to the database, creating it if necessary
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38 '''
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39 raise NotImplemented
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40
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41 def sql(self, cursor, sql, args=None):
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42 ''' Execute the sql with the optional args.
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43 '''
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44 if __debug__:
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45 print >>hyperdb.DEBUG, (self, sql, args)
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46 if args:
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47 cursor.execute(sql, args)
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48 else:
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49 cursor.execute(sql)
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50
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51 def sql_fetchone(self, cursor):
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52 ''' Fetch a single row. If there's nothing to fetch, return None.
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53 '''
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54 raise NotImplemented
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55
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56 def sql_stringquote(self, value):
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57 ''' Quote the string so it's safe to put in the 'sql quotes'
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58 '''
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59 return re.sub("'", "''", str(value))
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60
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61 def save_dbschema(self, cursor, schema):
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62 ''' Save the schema definition that the database currently implements
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63 '''
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64 raise NotImplemented
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65
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66 def load_dbschema(self, cursor):
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67 ''' Load the schema definition that the database currently implements
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68 '''
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69 raise NotImplemented
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70
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71 def post_init(self):
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72 ''' Called once the schema initialisation has finished.
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73
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74 We should now confirm that the schema defined by our "classes"
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75 attribute actually matches the schema in the database.
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76 '''
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77 # now detect changes in the schema
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78 save = 0
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79 for classname, spec in self.classes.items():
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80 if self.database_schema.has_key(classname):
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81 dbspec = self.database_schema[classname]
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82 if self.update_class(spec, dbspec):
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83 self.database_schema[classname] = spec.schema()
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84 save = 1
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85 else:
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86 self.create_class(spec)
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87 self.database_schema[classname] = spec.schema()
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88 save = 1
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89
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90 for classname in self.database_schema.keys():
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91 if not self.classes.has_key(classname):
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92 self.drop_class(classname)
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93
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94 # update the database version of the schema
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95 if save:
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96 cursor = self.conn.cursor()
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97 self.sql(cursor, 'delete from schema')
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98 self.save_dbschema(cursor, self.database_schema)
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99
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100 # reindex the db if necessary
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101 if self.indexer.should_reindex():
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102 self.reindex()
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103
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104 # commit
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105 self.conn.commit()
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106
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107 def reindex(self):
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108 for klass in self.classes.values():
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109 for nodeid in klass.list():
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110 klass.index(nodeid)
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111 self.indexer.save_index()
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112
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113 def determine_columns(self, properties):
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114 ''' Figure the column names and multilink properties from the spec
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115
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116 "properties" is a list of (name, prop) where prop may be an
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117 instance of a hyperdb "type" _or_ a string repr of that type.
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118 '''
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119 cols = []
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120 mls = []
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121 # add the multilinks separately
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122 for col, prop in properties:
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123 if isinstance(prop, Multilink):
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124 mls.append(col)
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125 elif isinstance(prop, type('')) and prop.find('Multilink') != -1:
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126 mls.append(col)
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127 else:
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128 cols.append('_'+col)
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129 cols.sort()
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130 return cols, mls
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131
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132 def update_class(self, spec, dbspec):
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133 ''' Determine the differences between the current spec and the
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134 database version of the spec, and update where necessary
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135 '''
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136 spec_schema = spec.schema()
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137 if spec_schema == dbspec:
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138 # no save needed for this one
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139 return 0
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140 if __debug__:
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141 print >>hyperdb.DEBUG, 'update_class FIRING'
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142
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143 # key property changed?
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144 if dbspec[0] != spec_schema[0]:
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145 if __debug__:
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146 print >>hyperdb.DEBUG, 'update_class setting keyprop', `spec[0]`
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147 # XXX turn on indexing for the key property
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148
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149 # dict 'em up
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150 spec_propnames,spec_props = [],{}
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151 for propname,prop in spec_schema[1]:
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152 spec_propnames.append(propname)
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153 spec_props[propname] = prop
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154 dbspec_propnames,dbspec_props = [],{}
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155 for propname,prop in dbspec[1]:
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156 dbspec_propnames.append(propname)
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157 dbspec_props[propname] = prop
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158
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159 # we're going to need one of these
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160 cursor = self.conn.cursor()
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161
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162 # now compare
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163 for propname in spec_propnames:
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164 prop = spec_props[propname]
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165 if dbspec_props.has_key(propname) and prop==dbspec_props[propname]:
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166 continue
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167 if __debug__:
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168 print >>hyperdb.DEBUG, 'update_class ADD', (propname, prop)
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169
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170 if not dbspec_props.has_key(propname):
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171 # add the property
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172 if isinstance(prop, Multilink):
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173 # all we have to do here is create a new table, easy!
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174 self.create_multilink_table(cursor, spec, propname)
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175 continue
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176
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177 # no ALTER TABLE, so we:
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178 # 1. pull out the data, including an extra None column
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179 oldcols, x = self.determine_columns(dbspec[1])
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180 oldcols.append('id')
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181 oldcols.append('__retired__')
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182 cn = spec.classname
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183 sql = 'select %s,%s from _%s'%(','.join(oldcols), self.arg, cn)
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184 if __debug__:
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185 print >>hyperdb.DEBUG, 'update_class', (self, sql, None)
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186 cursor.execute(sql, (None,))
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187 olddata = cursor.fetchall()
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188
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189 # 2. drop the old table
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190 cursor.execute('drop table _%s'%cn)
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191
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192 # 3. create the new table
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193 cols, mls = self.create_class_table(cursor, spec)
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194 # ensure the new column is last
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195 cols.remove('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
196 assert oldcols == cols, "Column lists don't match!"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
197 cols.append('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
198
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
199 # 4. populate with the data from step one
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
200 s = ','.join([self.arg for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
201 scols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
202 sql = 'insert into _%s (%s) values (%s)'%(cn, scols, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
203
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
204 # GAH, nothing had better go wrong from here on in... but
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
205 # we have to commit the drop...
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
206 # XXX this isn't necessary in sqlite :(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
207 self.conn.commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
208
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
209 # do the insert
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
210 for row in olddata:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
211 self.sql(cursor, sql, tuple(row))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
212
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
213 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
214 # modify the property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
215 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
216 print >>hyperdb.DEBUG, 'update_class NOOP'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
217 pass # NOOP in gadfly
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
218
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
219 # and the other way - only worry about deletions here
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
220 for propname in dbspec_propnames:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
221 prop = dbspec_props[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
222 if spec_props.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
223 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
224 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
225 print >>hyperdb.DEBUG, 'update_class REMOVE', `prop`
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
226
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
227 # delete the property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
228 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
229 sql = 'drop table %s_%s'%(spec.classname, prop)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
230 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
231 print >>hyperdb.DEBUG, 'update_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
232 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
233 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
234 # no ALTER TABLE, so we:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
235 # 1. pull out the data, excluding the removed column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
236 oldcols, x = self.determine_columns(spec.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
237 oldcols.append('id')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
238 oldcols.append('__retired__')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
239 # remove the missing column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
240 oldcols.remove('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
241 cn = spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
242 sql = 'select %s from _%s'%(','.join(oldcols), cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
243 cursor.execute(sql, (None,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
244 olddata = sql.fetchall()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
245
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
246 # 2. drop the old table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
247 cursor.execute('drop table _%s'%cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
248
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
249 # 3. create the new table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
250 cols, mls = self.create_class_table(self, cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
251 assert oldcols != cols, "Column lists don't match!"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
252
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
253 # 4. populate with the data from step one
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
254 qs = ','.join([self.arg for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
255 sql = 'insert into _%s values (%s)'%(cn, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
256 cursor.execute(sql, olddata)
|
|
1168
|
257 return 1
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
258
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
259 def create_class_table(self, cursor, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
260 ''' create the class table for the given spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
261 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
262 cols, mls = self.determine_columns(spec.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
263
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
264 # add on our special columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
265 cols.append('id')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
266 cols.append('__retired__')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
267
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
268 # create the base table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
269 scols = ','.join(['%s varchar'%x for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
270 sql = 'create table _%s (%s)'%(spec.classname, scols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
271 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
272 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
273 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
274
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
275 return cols, mls
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
276
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
277 def create_journal_table(self, cursor, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
278 ''' create the journal table for a class given the spec and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
279 already-determined cols
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
280 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
281 # journal table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
282 cols = ','.join(['%s varchar'%x
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
283 for x in 'nodeid date tag action params'.split()])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
284 sql = 'create table %s__journal (%s)'%(spec.classname, cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
285 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
286 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
287 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
288
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
289 def create_multilink_table(self, cursor, spec, ml):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
290 ''' Create a multilink table for the "ml" property of the class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
291 given by the spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
292 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
293 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
294 spec.classname, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
295 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
296 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
297 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
298
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
299 def create_class(self, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
300 ''' Create a database table according to the given spec.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
301 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
302 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
303 cols, mls = self.create_class_table(cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
304 self.create_journal_table(cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
305
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
306 # now create the multilink tables
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
307 for ml in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
308 self.create_multilink_table(cursor, spec, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
309
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
310 # ID counter
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
311 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
312 vals = (spec.classname, 1)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
313 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
314 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
315 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
316
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
317 def drop_class(self, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
318 ''' Drop the given table from the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
319
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
320 Drop the journal and multilink tables too.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
321 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
322 # figure the multilinks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
323 mls = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
324 for col, prop in spec.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
325 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
326 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
327 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
328
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
329 sql = 'drop table _%s'%spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
330 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
331 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
332 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
333
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
334 sql = 'drop table %s__journal'%spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
335 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
336 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
337 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
338
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
339 for ml in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
340 sql = 'drop table %s_%s'%(spec.classname, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
341 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
342 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
343 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
344
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
345 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
346 # Classes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
347 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
348 def __getattr__(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
349 ''' A convenient way of calling self.getclass(classname).
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
350 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
351 if self.classes.has_key(classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
352 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
353 print >>hyperdb.DEBUG, '__getattr__', (self, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
354 return self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
355 raise AttributeError, classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
356
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
357 def addclass(self, cl):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
358 ''' Add a Class to the hyperdatabase.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
359 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
360 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
361 print >>hyperdb.DEBUG, 'addclass', (self, cl)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
362 cn = cl.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
363 if self.classes.has_key(cn):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
364 raise ValueError, cn
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
365 self.classes[cn] = cl
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
366
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
367 def getclasses(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
368 ''' Return a list of the names of all existing classes.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
369 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
370 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
371 print >>hyperdb.DEBUG, 'getclasses', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
372 l = self.classes.keys()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
373 l.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
374 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
375
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
376 def getclass(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
377 '''Get the Class object representing a particular class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
378
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
379 If 'classname' is not a valid class name, a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
380 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
381 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
382 print >>hyperdb.DEBUG, 'getclass', (self, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
383 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
384 return self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
385 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
386 raise KeyError, 'There is no class called "%s"'%classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
387
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
388 def clear(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
389 ''' Delete all database contents.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
390
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
391 Note: I don't commit here, which is different behaviour to the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
392 "nuke from orbit" behaviour in the *dbms.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
393 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
394 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
395 print >>hyperdb.DEBUG, 'clear', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
396 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
397 for cn in self.classes.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
398 sql = 'delete from _%s'%cn
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
399 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
400 print >>hyperdb.DEBUG, 'clear', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
401 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
402
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
403 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
404 # Node IDs
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
405 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
406 def newid(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
407 ''' Generate a new id for the given class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
408 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
409 # get the next ID
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
410 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
411 sql = 'select num from ids where name=%s'%self.arg
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
412 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
413 print >>hyperdb.DEBUG, 'newid', (self, sql, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
414 cursor.execute(sql, (classname, ))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
415 newid = cursor.fetchone()[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
416
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
417 # update the counter
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
418 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
419 vals = (int(newid)+1, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
420 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
421 print >>hyperdb.DEBUG, 'newid', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
422 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
423
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
424 # return as string
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
425 return str(newid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
426
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
427 def setid(self, classname, setid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
428 ''' Set the id counter: used during import of database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
429 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
430 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
431 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
|
|
1171
|
432 vals = (setid, classname)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
433 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
434 print >>hyperdb.DEBUG, 'setid', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
435 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
436
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
437 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
438 # Nodes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
439 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
440
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
441 def addnode(self, classname, nodeid, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
442 ''' Add the specified node to its class's db.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
443 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
444 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
445 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
446 # gadfly requires values for all non-multilink columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
447 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
448 cols, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
449
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
450 # default the non-multilink columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
451 for col, prop in cl.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
452 if not isinstance(col, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
453 if not node.has_key(col):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
454 node[col] = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
455
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
456 node = self.serialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
457
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
458 # make sure the ordering is correct for column name -> column value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
459 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
460 s = ','.join([self.arg for x in cols]) + ',%s,%s'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
461 cols = ','.join(cols) + ',id,__retired__'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
462
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
463 # perform the inserts
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
464 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
465 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
466 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
467 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
468 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
469
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
470 # insert the multilink rows
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
471 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
472 t = '%s_%s'%(classname, col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
473 for entry in node[col]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
474 sql = 'insert into %s (linkid, nodeid) values (%s,%s)'%(t,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
475 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
476 self.sql(cursor, sql, (entry, nodeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
477
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
478 # make sure we do the commit-time extra stuff for this node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
479 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
480
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
481 def setnode(self, classname, nodeid, node, multilink_changes):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
482 ''' Change the specified node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
483 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
484 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
485 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
486 node = self.serialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
487
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
488 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
489 cols = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
490 mls = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
491 # add the multilinks separately
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
492 for col in node.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
493 prop = cl.properties[col]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
494 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
495 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
496 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
497 cols.append('_'+col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
498 cols.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
499
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
500 # make sure the ordering is correct for column name -> column value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
501 vals = tuple([node[col[1:]] for col in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
502 s = ','.join(['%s=%s'%(x, self.arg) for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
503 cols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
504
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
505 # perform the update
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
506 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
507 sql = 'update _%s set %s'%(classname, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
508 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
509 print >>hyperdb.DEBUG, 'setnode', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
510 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
511
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
512 # now the fun bit, updating the multilinks ;)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
513 for col, (add, remove) in multilink_changes.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
514 tn = '%s_%s'%(classname, col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
515 if add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
516 sql = 'insert into %s (nodeid, linkid) values (%s,%s)'%(tn,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
517 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
518 for addid in add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
519 self.sql(cursor, sql, (nodeid, addid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
520 if remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
521 sql = 'delete from %s where nodeid=%s and linkid=%s'%(tn,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
522 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
523 for removeid in remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
524 self.sql(cursor, sql, (nodeid, removeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
525
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
526 # make sure we do the commit-time extra stuff for this node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
527 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
528
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
529 def getnode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
530 ''' Get a node from the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
531 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
532 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
533 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
534 # figure the columns we're fetching
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
535 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
536 cols, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
537 scols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
538
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
539 # perform the basic property fetch
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
540 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
541 sql = 'select %s from _%s where id=%s'%(scols, classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
542 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
543
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
544 values = self.sql_fetchone(cursor)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
545 if values is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
546 raise IndexError, 'no such %s node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
547
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
548 # make up the node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
549 node = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
550 for col in range(len(cols)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
551 node[cols[col][1:]] = values[col]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
552
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
553 # now the multilinks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
554 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
555 # get the link ids
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
556 sql = 'select linkid from %s_%s where nodeid=%s'%(classname, col,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
557 self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
558 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
559 # extract the first column from the result
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
560 node[col] = [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
561
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
562 return self.unserialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
563
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
564 def destroynode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
565 '''Remove a node from the database. Called exclusively by the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
566 destroy() method on Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
567 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
568 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
569 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
570
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
571 # make sure the node exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
572 if not self.hasnode(classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
573 raise IndexError, '%s has no node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
574
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
575 # see if there's any obvious commit actions that we should get rid of
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
576 for entry in self.transactions[:]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
577 if entry[1][:2] == (classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
578 self.transactions.remove(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
579
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
580 # now do the SQL
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
581 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
582 sql = 'delete from _%s where id=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
583 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
584
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
585 # remove from multilnks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
586 cl = self.getclass(classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
587 x, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
588 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
589 # get the link ids
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
590 sql = 'delete from %s_%s where nodeid=%s'%(classname, col, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
591 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
592
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
593 # remove journal entries
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
594 sql = 'delete from %s__journal where nodeid=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
595 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
596
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
597 def serialise(self, classname, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
598 '''Copy the node contents, converting non-marshallable data into
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
599 marshallable data.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
600 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
601 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
602 print >>hyperdb.DEBUG, 'serialise', classname, node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
603 properties = self.getclass(classname).getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
604 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
605 for k, v in node.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
606 # if the property doesn't exist, or is the "retired" flag then
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
607 # it won't be in the properties dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
608 if not properties.has_key(k):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
609 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
610 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
611
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
612 # get the property spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
613 prop = properties[k]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
614
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
615 if isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
616 d[k] = str(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
617 elif isinstance(prop, Date) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
618 d[k] = v.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
619 elif isinstance(prop, Interval) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
620 d[k] = v.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
621 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
622 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
623 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
624
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
625 def unserialise(self, classname, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
626 '''Decode the marshalled node data
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
627 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
628 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
629 print >>hyperdb.DEBUG, 'unserialise', classname, node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
630 properties = self.getclass(classname).getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
631 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
632 for k, v in node.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
633 # if the property doesn't exist, or is the "retired" flag then
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
634 # it won't be in the properties dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
635 if not properties.has_key(k):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
636 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
637 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
638
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
639 # get the property spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
640 prop = properties[k]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
641
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
642 if isinstance(prop, Date) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
643 d[k] = date.Date(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
644 elif isinstance(prop, Interval) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
645 d[k] = date.Interval(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
646 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
647 p = password.Password()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
648 p.unpack(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
649 d[k] = p
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
650 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
651 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
652 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
653
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
654 def hasnode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
655 ''' Determine if the database has a given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
656 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
657 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
658 sql = 'select count(*) from _%s where id=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
659 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
660 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
661 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
662 return int(cursor.fetchone()[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
663
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
664 def countnodes(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
665 ''' Count the number of nodes that exist for a particular Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
666 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
667 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
668 sql = 'select count(*) from _%s'%classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
669 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
670 print >>hyperdb.DEBUG, 'countnodes', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
671 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
672 return cursor.fetchone()[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
673
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
674 def getnodeids(self, classname, retired=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
675 ''' Retrieve all the ids of the nodes for a particular Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
676
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
677 Set retired=None to get all nodes. Otherwise it'll get all the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
678 retired or non-retired nodes, depending on the flag.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
679 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
680 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
681 # flip the sense of the flag if we don't want all of them
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
682 if retired is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
683 retired = not retired
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
684 sql = 'select id from _%s where __retired__ <> %s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
685 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
686 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
687 cursor.execute(sql, (retired,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
688 return [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
689
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
690 def addjournal(self, classname, nodeid, action, params, creator=None,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
691 creation=None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
692 ''' Journal the Action
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
693 'action' may be:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
694
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
695 'create' or 'set' -- 'params' is a dictionary of property values
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
696 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
697 'retire' -- 'params' is None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
698 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
699 # serialise the parameters now if necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
700 if isinstance(params, type({})):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
701 if action in ('set', 'create'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
702 params = self.serialise(classname, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
703
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
704 # handle supply of the special journalling parameters (usually
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
705 # supplied on importing an existing database)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
706 if creator:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
707 journaltag = creator
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
708 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
709 journaltag = self.journaltag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
710 if creation:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
711 journaldate = creation.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
712 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
713 journaldate = date.Date().serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
714
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
715 # create the journal entry
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
716 cols = ','.join('nodeid date tag action params'.split())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
717
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
718 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
719 print >>hyperdb.DEBUG, 'addjournal', (nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
720 journaltag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
721
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
722 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
723 self.save_journal(cursor, classname, cols, nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
724 journaltag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
725
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
726 def save_journal(self, cursor, classname, cols, nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
727 journaltag, action, params):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
728 ''' Save the journal entry to the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
729 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
730 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
731
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
732 def getjournal(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
733 ''' get the journal for id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
734 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
735 # make sure the node exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
736 if not self.hasnode(classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
737 raise IndexError, '%s has no node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
738
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
739 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
740 cols = ','.join('nodeid date tag action params'.split())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
741 return self.load_journal(cursor, classname, cols, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
742
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
743 def load_journal(self, cursor, classname, cols, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
744 ''' Load the journal from the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
745 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
746 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
747
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
748 def pack(self, pack_before):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
749 ''' Delete all journal entries except "create" before 'pack_before'.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
750 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
751 # get a 'yyyymmddhhmmss' version of the date
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
752 date_stamp = pack_before.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
753
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
754 # do the delete
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
755 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
756 for classname in self.classes.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
757 sql = "delete from %s__journal where date<%s and "\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
758 "action<>'create'"%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
759 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
760 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
761 cursor.execute(sql, (date_stamp,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
762
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
763 def sql_commit(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
764 ''' Actually commit to the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
765 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
766 self.conn.commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
767
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
768 def commit(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
769 ''' Commit the current transactions.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
770
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
771 Save all data changed since the database was opened or since the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
772 last commit() or rollback().
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
773 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
774 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
775 print >>hyperdb.DEBUG, 'commit', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
776
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
777 # commit the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
778 self.sql_commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
779
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
780 # now, do all the other transaction stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
781 reindex = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
782 for method, args in self.transactions:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
783 reindex[method(*args)] = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
784
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
785 # reindex the nodes that request it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
786 for classname, nodeid in filter(None, reindex.keys()):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
787 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
788 self.getclass(classname).index(nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
789
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
790 # save the indexer state
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
791 self.indexer.save_index()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
792
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
793 # clear out the transactions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
794 self.transactions = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
795
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
796 def rollback(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
797 ''' Reverse all actions from the current transaction.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
798
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
799 Undo all the changes made since the database was opened or the last
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
800 commit() or rollback() was performed.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
801 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
802 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
803 print >>hyperdb.DEBUG, 'rollback', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
804
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
805 # roll back
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
806 self.conn.rollback()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
807
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
808 # roll back "other" transaction stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
809 for method, args in self.transactions:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
810 # delete temporary files
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
811 if method == self.doStoreFile:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
812 self.rollbackStoreFile(*args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
813 self.transactions = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
814
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
815 def doSaveNode(self, classname, nodeid, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
816 ''' dummy that just generates a reindex event
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
817 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
818 # return the classname, nodeid so we reindex this content
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
819 return (classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
820
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
821 def close(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
822 ''' Close off the connection.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
823 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
824 self.conn.close()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
825
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
826 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
827 # The base Class class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
828 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
829 class Class(hyperdb.Class):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
830 ''' The handle to a particular class of nodes in a hyperdatabase.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
831
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
832 All methods except __repr__ and getnode must be implemented by a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
833 concrete backend Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
834 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
835
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
836 def __init__(self, db, classname, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
837 '''Create a new class with a given name and property specification.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
838
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
839 'classname' must not collide with the name of an existing class,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
840 or a ValueError is raised. The keyword arguments in 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
841 must map names to property objects, or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
842 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
843 if (properties.has_key('creation') or properties.has_key('activity')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
844 or properties.has_key('creator')):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
845 raise ValueError, '"creation", "activity" and "creator" are '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
846 'reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
847
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
848 self.classname = classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
849 self.properties = properties
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
850 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
851 self.key = ''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
852
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
853 # should we journal changes (default yes)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
854 self.do_journal = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
855
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
856 # do the db-related init stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
857 db.addclass(self)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
858
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
859 self.auditors = {'create': [], 'set': [], 'retire': []}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
860 self.reactors = {'create': [], 'set': [], 'retire': []}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
861
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
862 def schema(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
863 ''' A dumpable version of the schema that we can store in the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
864 database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
865 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
866 return (self.key, [(x, repr(y)) for x,y in self.properties.items()])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
867
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
868 def enableJournalling(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
869 '''Turn journalling on for this class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
870 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
871 self.do_journal = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
872
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
873 def disableJournalling(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
874 '''Turn journalling off for this class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
875 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
876 self.do_journal = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
877
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
878 # Editing nodes:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
879 def create(self, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
880 ''' Create a new node of this class and return its id.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
881
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
882 The keyword arguments in 'propvalues' map property names to values.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
883
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
884 The values of arguments must be acceptable for the types of their
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
885 corresponding properties or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
886
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
887 If this class has a key property, it must be present and its value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
888 must not collide with other key strings or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
889
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
890 Any other properties on this class that are missing from the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
891 'propvalues' dictionary are set to None.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
892
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
893 If an id in a link or multilink property does not refer to a valid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
894 node, an IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
895 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
896 if propvalues.has_key('id'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
897 raise KeyError, '"id" is reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
898
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
899 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
900 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
901
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
902 if propvalues.has_key('creation') or propvalues.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
903 raise KeyError, '"creation" and "activity" are reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
904
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
905 self.fireAuditors('create', None, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
906
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
907 # new node's id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
908 newid = self.db.newid(self.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
909
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
910 # validate propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
911 num_re = re.compile('^\d+$')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
912 for key, value in propvalues.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
913 if key == self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
914 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
915 self.lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
916 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
917 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
918 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
919 raise ValueError, 'node with key "%s" exists'%value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
920
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
921 # try to handle this property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
922 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
923 prop = self.properties[key]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
924 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
925 raise KeyError, '"%s" has no property "%s"'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
926 key)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
927
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
928 if value is not None and isinstance(prop, Link):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
929 if type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
930 raise ValueError, 'link value must be String'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
931 link_class = self.properties[key].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
932 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
933 if not num_re.match(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
934 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
935 value = self.db.classes[link_class].lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
936 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
937 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
938 key, value, link_class)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
939 elif not self.db.getclass(link_class).hasnode(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
940 raise IndexError, '%s has no node %s'%(link_class, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
941
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
942 # save off the value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
943 propvalues[key] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
944
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
945 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
946 if self.do_journal and self.properties[key].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
947 self.db.addjournal(link_class, value, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
948 (self.classname, newid, key))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
949
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
950 elif isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
951 if type(value) != type([]):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
952 raise TypeError, 'new property "%s" not a list of ids'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
953
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
954 # clean up and validate the list of links
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
955 link_class = self.properties[key].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
956 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
957 for entry in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
958 if type(entry) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
959 raise ValueError, '"%s" multilink value (%r) '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
960 'must contain Strings'%(key, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
961 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
962 if not num_re.match(entry):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
963 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
964 entry = self.db.classes[link_class].lookup(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
965 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
966 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
967 key, entry, self.properties[key].classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
968 l.append(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
969 value = l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
970 propvalues[key] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
971
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
972 # handle additions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
973 for nodeid in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
974 if not self.db.getclass(link_class).hasnode(nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
975 raise IndexError, '%s has no node %s'%(link_class,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
976 nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
977 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
978 if self.do_journal and self.properties[key].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
979 self.db.addjournal(link_class, nodeid, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
980 (self.classname, newid, key))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
981
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
982 elif isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
983 if type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
984 raise TypeError, 'new property "%s" not a string'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
985
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
986 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
987 if not isinstance(value, password.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
988 raise TypeError, 'new property "%s" not a Password'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
989
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
990 elif isinstance(prop, Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
991 if value is not None and not isinstance(value, date.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
992 raise TypeError, 'new property "%s" not a Date'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
993
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
994 elif isinstance(prop, Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
995 if value is not None and not isinstance(value, date.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
996 raise TypeError, 'new property "%s" not an Interval'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
997
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
998 elif value is not None and isinstance(prop, Number):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
999 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1000 float(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1001 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1002 raise TypeError, 'new property "%s" not numeric'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1003
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1004 elif value is not None and isinstance(prop, Boolean):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1005 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1006 int(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1007 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1008 raise TypeError, 'new property "%s" not boolean'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1009
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1010 # make sure there's data where there needs to be
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1011 for key, prop in self.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1012 if propvalues.has_key(key):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1013 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1014 if key == self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1015 raise ValueError, 'key property "%s" is required'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1016 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1017 propvalues[key] = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1018 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1019 propvalues[key] = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1020
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1021 # done
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1022 self.db.addnode(self.classname, newid, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1023 if self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1024 self.db.addjournal(self.classname, newid, 'create', propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1025
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1026 self.fireReactors('create', newid, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1027
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1028 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1029
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1030 def export_list(self, propnames, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1031 ''' Export a node - generate a list of CSV-able data in the order
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1032 specified by propnames for the given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1033 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1034 properties = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1035 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1036 for prop in propnames:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1037 proptype = properties[prop]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1038 value = self.get(nodeid, prop)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1039 # "marshal" data where needed
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1040 if value is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1041 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1042 elif isinstance(proptype, hyperdb.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1043 value = value.get_tuple()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1044 elif isinstance(proptype, hyperdb.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1045 value = value.get_tuple()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1046 elif isinstance(proptype, hyperdb.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1047 value = str(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1048 l.append(repr(value))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1049 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1050
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1051 def import_list(self, propnames, proplist):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1052 ''' Import a node - all information including "id" is present and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1053 should not be sanity checked. Triggers are not triggered. The
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1054 journal should be initialised using the "creator" and "created"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1055 information.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1056
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1057 Return the nodeid of the node imported.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1058 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1059 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1060 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1061 properties = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1062
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1063 # make the new node's property map
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1064 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1065 for i in range(len(propnames)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1066 # Use eval to reverse the repr() used to output the CSV
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1067 value = eval(proplist[i])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1068
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1069 # Figure the property for this column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1070 propname = propnames[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1071 prop = properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1072
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1073 # "unmarshal" where necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1074 if propname == 'id':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1075 newid = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1076 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1077 elif value is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1078 # don't set Nones
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1079 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1080 elif isinstance(prop, hyperdb.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1081 value = date.Date(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1082 elif isinstance(prop, hyperdb.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1083 value = date.Interval(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1084 elif isinstance(prop, hyperdb.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1085 pwd = password.Password()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1086 pwd.unpack(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1087 value = pwd
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1088 d[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1089
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1090 # extract the extraneous journalling gumpf and nuke it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1091 if d.has_key('creator'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1092 creator = d['creator']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1093 del d['creator']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1094 if d.has_key('creation'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1095 creation = d['creation']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1096 del d['creation']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1097 if d.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1098 del d['activity']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1099
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1100 # add the node and journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1101 self.db.addnode(self.classname, newid, d)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1102 self.db.addjournal(self.classname, newid, 'create', d, creator,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1103 creation)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1104 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1105
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1106 _marker = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1107 def get(self, nodeid, propname, default=_marker, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1108 '''Get the value of a property on an existing node of this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1109
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1110 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1111 IndexError is raised. 'propname' must be the name of a property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1112 of this class or a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1113
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1114 'cache' indicates whether the transaction cache should be queried
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1115 for the node. If the node has been modified and you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1116 determine what its values prior to modification are, you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1117 set cache=0.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1118 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1119 if propname == 'id':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1120 return nodeid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1121
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1122 if propname == 'creation':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1123 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1124 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1125 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1126 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1127 return self.db.getjournal(self.classname, nodeid)[0][1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1128 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1129 # on the strange chance that there's no journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1130 return date.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1131 if propname == 'activity':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1132 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1133 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1134 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1135 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1136 return self.db.getjournal(self.classname, nodeid)[-1][1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1137 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1138 # on the strange chance that there's no journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1139 return date.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1140 if propname == 'creator':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1141 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1142 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1143 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1144 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1145 name = self.db.getjournal(self.classname, nodeid)[0][2]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1146 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1147 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1148 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1149 return self.db.user.lookup(name)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1150 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1151 # the journaltag user doesn't exist any more
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1152 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1153
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1154 # get the property (raises KeyErorr if invalid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1155 prop = self.properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1156
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1157 # get the node's dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1158 d = self.db.getnode(self.classname, nodeid) #, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1159
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1160 if not d.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1161 if default is self._marker:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1162 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1163 return []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1164 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1165 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1166 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1167 return default
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1168
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1169 # don't pass our list to other code
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1170 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1171 return d[propname][:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1172
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1173 return d[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1174
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1175 def getnode(self, nodeid, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1176 ''' Return a convenience wrapper for the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1177
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1178 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1179 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1180
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1181 'cache' indicates whether the transaction cache should be queried
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1182 for the node. If the node has been modified and you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1183 determine what its values prior to modification are, you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1184 set cache=0.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1185 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1186 return Node(self, nodeid, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1187
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1188 def set(self, nodeid, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1189 '''Modify a property on an existing node of this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1190
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1191 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1192 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1193
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1194 Each key in 'propvalues' must be the name of a property of this
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1195 class or a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1196
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1197 All values in 'propvalues' must be acceptable types for their
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1198 corresponding properties or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1199
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1200 If the value of the key property is set, it must not collide with
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1201 other key strings or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1202
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1203 If the value of a Link or Multilink property contains an invalid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1204 node id, a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1205 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1206 if not propvalues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1207 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1208
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1209 if propvalues.has_key('creation') or propvalues.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1210 raise KeyError, '"creation" and "activity" are reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1211
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1212 if propvalues.has_key('id'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1213 raise KeyError, '"id" is reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1214
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1215 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1216 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1217
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1218 self.fireAuditors('set', nodeid, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1219 # Take a copy of the node dict so that the subsequent set
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1220 # operation doesn't modify the oldvalues structure.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1221 # XXX used to try the cache here first
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1222 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1223
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1224 node = self.db.getnode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1225 if self.is_retired(nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1226 raise IndexError, 'Requested item is retired'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1227 num_re = re.compile('^\d+$')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1228
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1229 # if the journal value is to be different, store it in here
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1230 journalvalues = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1231
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1232 # remember the add/remove stuff for multilinks, making it easier
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1233 # for the Database layer to do its stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1234 multilink_changes = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1235
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1236 for propname, value in propvalues.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1237 # check to make sure we're not duplicating an existing key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1238 if propname == self.key and node[propname] != value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1239 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1240 self.lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1241 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1242 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1243 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1244 raise ValueError, 'node with key "%s" exists'%value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1245
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1246 # this will raise the KeyError if the property isn't valid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1247 # ... we don't use getprops() here because we only care about
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1248 # the writeable properties.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1249 prop = self.properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1250
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1251 # if the value's the same as the existing value, no sense in
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1252 # doing anything
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1253 if node.has_key(propname) and value == node[propname]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1254 del propvalues[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1255 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1256
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1257 # do stuff based on the prop type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1258 if isinstance(prop, Link):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1259 link_class = prop.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1260 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1261 if value is not None and not isinstance(value, type('')):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1262 raise ValueError, 'property "%s" link value be a string'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1263 propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1264 if isinstance(value, type('')) and not num_re.match(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1265 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1266 value = self.db.classes[link_class].lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1267 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1268 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1269 propname, value, prop.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1270
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1271 if (value is not None and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1272 not self.db.getclass(link_class).hasnode(value)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1273 raise IndexError, '%s has no node %s'%(link_class, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1274
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1275 if self.do_journal and prop.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1276 # register the unlink with the old linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1277 if node[propname] is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1278 self.db.addjournal(link_class, node[propname], 'unlink',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1279 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1280
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1281 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1282 if value is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1283 self.db.addjournal(link_class, value, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1284 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1285
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1286 elif isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1287 if type(value) != type([]):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1288 raise TypeError, 'new property "%s" not a list of'\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1289 ' ids'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1290 link_class = self.properties[propname].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1291 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1292 for entry in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1293 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1294 if type(entry) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1295 raise ValueError, 'new property "%s" link value ' \
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1296 'must be a string'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1297 if not num_re.match(entry):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1298 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1299 entry = self.db.classes[link_class].lookup(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1300 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1301 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1302 propname, entry,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1303 self.properties[propname].classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1304 l.append(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1305 value = l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1306 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1307
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1308 # figure the journal entry for this property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1309 add = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1310 remove = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1311
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1312 # handle removals
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1313 if node.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1314 l = node[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1315 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1316 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1317 for id in l[:]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1318 if id in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1319 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1320 # register the unlink with the old linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1321 if self.do_journal and self.properties[propname].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1322 self.db.addjournal(link_class, id, 'unlink',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1323 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1324 l.remove(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1325 remove.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1326
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1327 # handle additions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1328 for id in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1329 if not self.db.getclass(link_class).hasnode(id):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1330 raise IndexError, '%s has no node %s'%(link_class, id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1331 if id in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1332 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1333 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1334 if self.do_journal and self.properties[propname].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1335 self.db.addjournal(link_class, id, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1336 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1337 l.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1338 add.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1339
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1340 # figure the journal entry
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1341 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1342 if add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1343 l.append(('+', add))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1344 if remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1345 l.append(('-', remove))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1346 multilink_changes[propname] = (add, remove)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1347 if l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1348 journalvalues[propname] = tuple(l)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1349
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1350 elif isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1351 if value is not None and type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1352 raise TypeError, 'new property "%s" not a string'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1353
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1354 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1355 if not isinstance(value, password.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1356 raise TypeError, 'new property "%s" not a Password'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1357 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1358
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1359 elif value is not None and isinstance(prop, Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1360 if not isinstance(value, date.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1361 raise TypeError, 'new property "%s" not a Date'% propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1362 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1363
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1364 elif value is not None and isinstance(prop, Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1365 if not isinstance(value, date.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1366 raise TypeError, 'new property "%s" not an '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1367 'Interval'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1368 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1369
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1370 elif value is not None and isinstance(prop, Number):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1371 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1372 float(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1373 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1374 raise TypeError, 'new property "%s" not numeric'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1375
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1376 elif value is not None and isinstance(prop, Boolean):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1377 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1378 int(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1379 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1380 raise TypeError, 'new property "%s" not boolean'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1381
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1382 node[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1383
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1384 # nothing to do?
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1385 if not propvalues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1386 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1387
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1388 # do the set, and journal it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1389 self.db.setnode(self.classname, nodeid, node, multilink_changes)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1390
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1391 if self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1392 propvalues.update(journalvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1393 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1394
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1395 self.fireReactors('set', nodeid, oldvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1396
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1397 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1398
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1399 def retire(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1400 '''Retire a node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1401
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1402 The properties on the node remain available from the get() method,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1403 and the node's id is never reused.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1404
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1405 Retired nodes are not returned by the find(), list(), or lookup()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1406 methods, and other nodes may reuse the values of their key properties.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1407 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1408 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1409 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1410
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1411 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1412 sql = 'update _%s set __retired__=1 where id=%s'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1413 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1414 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1415 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1416 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1417
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1418 def is_retired(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1419 '''Return true if the node is rerired
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1420 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1421 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1422 sql = 'select __retired__ from _%s where id=%s'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1423 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1424 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1425 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1426 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1427 return int(cursor.fetchone()[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1428
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1429 def destroy(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1430 '''Destroy a node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1431
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1432 WARNING: this method should never be used except in extremely rare
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1433 situations where there could never be links to the node being
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1434 deleted
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1435 WARNING: use retire() instead
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1436 WARNING: the properties of this node will not be available ever again
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1437 WARNING: really, use retire() instead
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1438
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1439 Well, I think that's enough warnings. This method exists mostly to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1440 support the session storage of the cgi interface.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1441
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1442 The node is completely removed from the hyperdb, including all journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1443 entries. It will no longer be available, and will generally break code
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1444 if there are any references to the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1445 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1446 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1447 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1448 self.db.destroynode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1449
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1450 def history(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1451 '''Retrieve the journal of edits on a particular node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1452
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1453 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1454 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1455
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1456 The returned list contains tuples of the form
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1457
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1458 (date, tag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1459
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1460 'date' is a Timestamp object specifying the time of the change and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1461 'tag' is the journaltag specified when the database was opened.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1462 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1463 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1464 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1465 return self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1466
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1467 # Locating nodes:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1468 def hasnode(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1469 '''Determine if the given nodeid actually exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1470 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1471 return self.db.hasnode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1472
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1473 def setkey(self, propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1474 '''Select a String property of this class to be the key property.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1475
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1476 'propname' must be the name of a String property of this class or
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1477 None, or a TypeError is raised. The values of the key property on
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1478 all existing nodes must be unique or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1479 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1480 # XXX create an index on the key prop column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1481 prop = self.getprops()[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1482 if not isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1483 raise TypeError, 'key properties must be String'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1484 self.key = propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1485
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1486 def getkey(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1487 '''Return the name of the key property for this class or None.'''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1488 return self.key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1489
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1490 def labelprop(self, default_to_id=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1491 ''' Return the property name for a label for the given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1492
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1493 This method attempts to generate a consistent label for the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1494 It tries the following in order:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1495 1. key property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1496 2. "name" property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1497 3. "title" property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1498 4. first property from the sorted property name list
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1499 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1500 k = self.getkey()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1501 if k:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1502 return k
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1503 props = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1504 if props.has_key('name'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1505 return 'name'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1506 elif props.has_key('title'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1507 return 'title'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1508 if default_to_id:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1509 return 'id'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1510 props = props.keys()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1511 props.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1512 return props[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1513
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1514 def lookup(self, keyvalue):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1515 '''Locate a particular node by its key property and return its id.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1516
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1517 If this class has no key property, a TypeError is raised. If the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1518 'keyvalue' matches one of the values for the key property among
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1519 the nodes in this class, the matching node's id is returned;
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1520 otherwise a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1521 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1522 if not self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1523 raise TypeError, 'No key property set for class %s'%self.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1524
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1525 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1526 sql = 'select id from _%s where _%s=%s'%(self.classname, self.key,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1527 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1528 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1529 print >>hyperdb.DEBUG, 'lookup', (self, sql, keyvalue)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1530 cursor.execute(sql, (keyvalue,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1531
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1532 # see if there was a result
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1533 l = cursor.fetchall()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1534 if not l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1535 raise KeyError, keyvalue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1536
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1537 # return the id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1538 return l[0][0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1539
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1540 def find(self, **propspec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1541 '''Get the ids of nodes in this class which link to the given nodes.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1542
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1543 'propspec' consists of keyword args propname={nodeid:1,}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1544 'propname' must be the name of a property in this class, or a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1545 KeyError is raised. That property must be a Link or Multilink
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1546 property, or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1547
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1548 Any node in this class whose 'propname' property links to any of the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1549 nodeids will be returned. Used by the full text indexing, which knows
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1550 that "foo" occurs in msg1, msg3 and file7, so we have hits on these
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1551 issues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1552
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1553 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1554 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1555 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1556 print >>hyperdb.DEBUG, 'find', (self, propspec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1557 if not propspec:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1558 return []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1559 queries = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1560 tables = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1561 allvalues = ()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1562 for prop, values in propspec.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1563 allvalues += tuple(values.keys())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1564 a = self.db.arg
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1565 tables.append('select nodeid from %s_%s where linkid in (%s)'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1566 self.classname, prop, ','.join([a for x in values.keys()])))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1567 sql = '\nintersect\n'.join(tables)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1568 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1569 print >>hyperdb.DEBUG, 'find', (self, sql, allvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1570 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1571 cursor.execute(sql, allvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1572 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1573 l = [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1574 except gadfly.database.error, message:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1575 if message == 'no more results':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1576 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1577 raise
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1578 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1579 print >>hyperdb.DEBUG, 'find ... ', l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1580 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1581
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1582 def list(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1583 ''' Return a list of the ids of the active nodes in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1584 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1585 return self.db.getnodeids(self.classname, retired=0)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1586
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1587 def filter(self, search_matches, filterspec, sort, group):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1588 ''' Return a list of the ids of the active nodes in this class that
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1589 match the 'filter' spec, sorted by the group spec and then the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1590 sort spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1591
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1592 "filterspec" is {propname: value(s)}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1593 "sort" and "group" are (dir, prop) where dir is '+', '-' or None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1594 and prop is a prop name or None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1595 "search_matches" is {nodeid: marker}
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1596
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1597 The filter must match all properties specificed - but if the
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1598 property value to match is a list, any one of the values in the
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1599 list may match for that property to match.
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1600 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1601 cn = self.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1602
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1603 # figure the WHERE clause from the filterspec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1604 props = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1605 frum = ['_'+cn]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1606 where = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1607 args = []
|
|
1168
|
1608 a = self.db.arg
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1609 for k, v in filterspec.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1610 propclass = props[k]
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1611 # now do other where clause stuff
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1612 if isinstance(propclass, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1613 tn = '%s_%s'%(cn, k)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1614 frum.append(tn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1615 if isinstance(v, type([])):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1616 s = ','.join([self.arg for x in v])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1617 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1618 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1619 else:
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1620 where.append('id=%s.nodeid and %s.linkid = %s'%(tn, tn, a))
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1621 args.append(v)
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1622 elif isinstance(propclass, String):
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1623 if not isinstance(v, type([])):
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1624 v = [v]
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1625
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1626 # Quote the bits in the string that need it and then embed
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1627 # in a "substring" search. Note - need to quote the '%' so
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1628 # they make it through the python layer happily
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1629 v = ['%%'+self.db.sql_stringquote(s)+'%%' for s in v]
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1630
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1631 # now add to the where clause
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1632 where.append(' or '.join(["_%s LIKE '%s'"%(k, s) for s in v]))
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1633 # note: args are embedded in the query string now
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1634 elif isinstance(propclass, Link):
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1635 if isinstance(v, type([])):
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1636 if '-1' in v:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1637 v.remove('-1')
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1638 xtra = ' or _%s is NULL'%k
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1639 s = ','.join([a for x in v])
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1640 where.append('(_%s in (%s)%s)'%(k, s, xtra))
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1641 args = args + v
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1642 else:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1643 if v == '-1':
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1644 v = None
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1645 where.append('_%s is NULL'%k)
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1646 else:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1647 where.append('_%s=%s'%(k, a))
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1648 args.append(v)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1649 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1650 if isinstance(v, type([])):
|
|
1168
|
1651 s = ','.join([a for x in v])
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1652 where.append('_%s in (%s)'%(k, s))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1653 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1654 else:
|
|
1168
|
1655 where.append('_%s=%s'%(k, a))
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1656 args.append(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1657
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1658 # add results of full text search
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1659 if search_matches is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1660 v = search_matches.keys()
|
|
1168
|
1661 s = ','.join([a for x in v])
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1662 where.append('id in (%s)'%s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1663 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1664
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1665 # "grouping" is just the first-order sorting in the SQL fetch
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1666 # can modify it...)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1667 orderby = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1668 ordercols = []
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1669 if group[0] is not None and group[1] is not None:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1670 if group[0] != '-':
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1671 orderby.append('_'+group[1])
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1672 ordercols.append('_'+group[1])
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1673 else:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1674 orderby.append('_'+group[1]+' desc')
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1675 ordercols.append('_'+group[1])
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1676
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1677 # now add in the sorting
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1678 group = ''
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1679 if sort[0] is not None and sort[1] is not None:
|
|
1168
|
1680 direction, colname = sort
|
|
|
1681 if direction != '-':
|
|
|
1682 if colname == 'activity':
|
|
|
1683 orderby.append('activity')
|
|
|
1684 ordercols.append('max(%s__journal.date) as activity'%cn)
|
|
|
1685 frum.append('%s__journal'%cn)
|
|
|
1686 where.append('%s__journal.nodeid = _%s.id'%(cn, cn))
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1687 # we need to group by id
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1688 group = ' group by id'
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1689 elif colname == 'id':
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1690 orderby.append(colname)
|
|
1168
|
1691 else:
|
|
|
1692 orderby.append('_'+colname)
|
|
|
1693 ordercols.append('_'+colname)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1694 else:
|
|
1168
|
1695 if colname == 'activity':
|
|
|
1696 orderby.append('activity desc')
|
|
|
1697 ordercols.append('max(%s__journal.date) as activity'%cn)
|
|
|
1698 frum.append('%s__journal'%cn)
|
|
|
1699 where.append('%s__journal.nodeid = _%s.id'%(cn, cn))
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1700 # we need to group by id
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1701 group = ' group by id'
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1702 elif colname == 'id':
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1703 orderby.append(colname+' desc')
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1704 ordercols.append(colname)
|
|
1168
|
1705 else:
|
|
|
1706 orderby.append('_'+colname+' desc')
|
|
|
1707 ordercols.append('_'+colname)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1708
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1709 # construct the SQL
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1710 frum = ','.join(frum)
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1711 if where:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1712 where = ' where ' + (' and '.join(where))
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1713 else:
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1714 where = ''
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1715 cols = ['id']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1716 if orderby:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1717 cols = cols + ordercols
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1718 order = ' order by %s'%(','.join(orderby))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1719 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1720 order = ''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1721 cols = ','.join(cols)
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1722 sql = 'select %s from %s %s%s%s'%(cols, frum, where, group, order)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1723 args = tuple(args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1724 if __debug__:
|
|
1168
|
1725 print >>hyperdb.DEBUG, 'filter', (self, sql, args)
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1726 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1727 cursor.execute(sql, args)
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1728 l = cursor.fetchall()
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1729
|
1170
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1730 # return the IDs (the first column)
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1731 # XXX The filter(None, l) bit is sqlite-specific... if there's _NO_
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1732 # XXX matches to a fetch, it returns NULL instead of nothing!?!
|
af104fa52746
Added some words to the installation doc about choosing backends.
Richard Jones <richard@users.sourceforge.net>
diff
changeset
|
1733 return filter(None, [row[0] for row in l])
|
|
1168
|
1734
|
1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1735 def count(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1736 '''Get the number of nodes in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1737
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1738 If the returned integer is 'numnodes', the ids of all the nodes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1739 in this class run from 1 to numnodes, and numnodes+1 will be the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1740 id of the next node to be created in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1741 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1742 return self.db.countnodes(self.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1743
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1744 # Manipulating properties:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1745 def getprops(self, protected=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1746 '''Return a dictionary mapping property names to property objects.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1747 If the "protected" flag is true, we include protected properties -
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1748 those which may not be modified.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1749 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1750 d = self.properties.copy()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1751 if protected:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1752 d['id'] = String()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1753 d['creation'] = hyperdb.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1754 d['activity'] = hyperdb.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1755 d['creator'] = hyperdb.Link("user")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1756 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1757
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1758 def addprop(self, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1759 '''Add properties to this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1760
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1761 The keyword arguments in 'properties' must map names to property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1762 objects, or a TypeError is raised. None of the keys in 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1763 may collide with the names of existing properties, or a ValueError
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1764 is raised before any properties have been added.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1765 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1766 for key in properties.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1767 if self.properties.has_key(key):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1768 raise ValueError, key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1769 self.properties.update(properties)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1770
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1771 def index(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1772 '''Add (or refresh) the node to search indexes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1773 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1774 # find all the String properties that have indexme
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1775 for prop, propclass in self.getprops().items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1776 if isinstance(propclass, String) and propclass.indexme:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1777 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1778 value = str(self.get(nodeid, prop))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1779 except IndexError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1780 # node no longer exists - entry should be removed
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1781 self.db.indexer.purge_entry((self.classname, nodeid, prop))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1782 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1783 # and index them under (classname, nodeid, property)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1784 self.db.indexer.add_text((self.classname, nodeid, prop),
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1785 value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1786
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1787
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1788 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1789 # Detector interface
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1790 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1791 def audit(self, event, detector):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1792 '''Register a detector
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1793 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1794 l = self.auditors[event]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1795 if detector not in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1796 self.auditors[event].append(detector)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1797
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1798 def fireAuditors(self, action, nodeid, newvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1799 '''Fire all registered auditors.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1800 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1801 for audit in self.auditors[action]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1802 audit(self.db, self, nodeid, newvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1803
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1804 def react(self, event, detector):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1805 '''Register a detector
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1806 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1807 l = self.reactors[event]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1808 if detector not in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1809 self.reactors[event].append(detector)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1810
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1811 def fireReactors(self, action, nodeid, oldvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1812 '''Fire all registered reactors.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1813 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1814 for react in self.reactors[action]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1815 react(self.db, self, nodeid, oldvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1816
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1817 class FileClass(Class):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1818 '''This class defines a large chunk of data. To support this, it has a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1819 mandatory String property "content" which is typically saved off
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1820 externally to the hyperdb.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1821
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1822 The default MIME type of this data is defined by the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1823 "default_mime_type" class attribute, which may be overridden by each
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1824 node if the class defines a "type" String property.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1825 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1826 default_mime_type = 'text/plain'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1827
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1828 def create(self, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1829 ''' snaffle the file propvalue and store in a file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1830 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1831 content = propvalues['content']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1832 del propvalues['content']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1833 newid = Class.create(self, **propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1834 self.db.storefile(self.classname, newid, None, content)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1835 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1836
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1837 def import_list(self, propnames, proplist):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1838 ''' Trap the "content" property...
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1839 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1840 # dupe this list so we don't affect others
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1841 propnames = propnames[:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1842
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1843 # extract the "content" property from the proplist
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1844 i = propnames.index('content')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1845 content = eval(proplist[i])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1846 del propnames[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1847 del proplist[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1848
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1849 # do the normal import
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1850 newid = Class.import_list(self, propnames, proplist)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1851
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1852 # save off the "content" file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1853 self.db.storefile(self.classname, newid, None, content)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1854 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1855
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1856 _marker = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1857 def get(self, nodeid, propname, default=_marker, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1858 ''' trap the content propname and get it from the file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1859 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1860
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1861 poss_msg = 'Possibly a access right configuration problem.'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1862 if propname == 'content':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1863 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1864 return self.db.getfile(self.classname, nodeid, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1865 except IOError, (strerror):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1866 # BUG: by catching this we donot see an error in the log.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff
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1867 return 'ERROR reading file: %s%s\n%s\n%s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1868 self.classname, nodeid, poss_msg, strerror)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
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1869 if default is not self._marker:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
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1870 return Class.get(self, nodeid, propname, default, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
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|
1871 else:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff
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1872 return Class.get(self, nodeid, propname, cache=cache)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1873
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
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1874 def getprops(self, protected=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
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1875 ''' In addition to the actual properties on the node, these methods
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1876 provide the "content" property. If the "protected" flag is true,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1877 we include protected properties - those which may not be
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1878 modified.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
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|
1879 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1880 d = Class.getprops(self, protected=protected).copy()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1881 d['content'] = hyperdb.String()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1882 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1883
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1884 def index(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1885 ''' Index the node in the search index.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1886
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1887 We want to index the content in addition to the normal String
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1888 property indexing.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1889 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1890 # perform normal indexing
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1891 Class.index(self, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1892
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1893 # get the content to index
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1894 content = self.get(nodeid, 'content')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1895
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1896 # figure the mime type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1897 if self.properties.has_key('type'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1898 mime_type = self.get(nodeid, 'type')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1899 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1900 mime_type = self.default_mime_type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1901
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1902 # and index!
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1903 self.db.indexer.add_text((self.classname, nodeid, 'content'), content,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1904 mime_type)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1905
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1906 # XXX deviation from spec - was called ItemClass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1907 class IssueClass(Class, roundupdb.IssueClass):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1908 # Overridden methods:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1909 def __init__(self, db, classname, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1910 '''The newly-created class automatically includes the "messages",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1911 "files", "nosy", and "superseder" properties. If the 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1912 dictionary attempts to specify any of these properties or a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1913 "creation" or "activity" property, a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1914 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1915 if not properties.has_key('title'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1916 properties['title'] = hyperdb.String(indexme='yes')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1917 if not properties.has_key('messages'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1918 properties['messages'] = hyperdb.Multilink("msg")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1919 if not properties.has_key('files'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1920 properties['files'] = hyperdb.Multilink("file")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1921 if not properties.has_key('nosy'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1922 # note: journalling is turned off as it really just wastes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1923 # space. this behaviour may be overridden in an instance
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1924 properties['nosy'] = hyperdb.Multilink("user", do_journal="no")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1925 if not properties.has_key('superseder'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1926 properties['superseder'] = hyperdb.Multilink(classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1927 Class.__init__(self, db, classname, **properties)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1928
|
