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annotate roundup/backends/back_gadfly.py @ 1143:c7119e74fcf8

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Fixed: . handling of None for Date/Interval/Password values in export/import . handling of journal values in export/import Also played with metakit backend some, fixing some of the unit tests breakages. Hrm.
author Richard Jones <richard@users.sourceforge.net>
date Fri, 13 Sep 2002 08:20:13 +0000
parents 92e92ae58494
children 81941abedb0a
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rev   line source
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1 # $Id: back_gadfly.py,v 1.19 2002-09-13 08:20:13 richard Exp $
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2 __doc__ = '''
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3 About Gadfly
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4 ============
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5
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6 Gadfly is a collection of python modules that provides relational
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7 database functionality entirely implemented in Python. It supports a
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8 subset of the intergalactic standard RDBMS Structured Query Language
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9 SQL.
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10
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11
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12 Basic Structure
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13 ===============
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14
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15 We map roundup classes to relational tables. Automatically detect schema
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16 changes and modify the gadfly table schemas appropriately. Multilinks
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17 (which represent a many-to-many relationship) are handled through
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18 intermediate tables.
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19
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20 Journals are stored adjunct to the per-class tables.
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21
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22 Table names and columns have "_" prepended so the names can't
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23 clash with restricted names (like "order"). Retirement is determined by the
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24 __retired__ column being true.
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25
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26 All columns are defined as VARCHAR, since it really doesn't matter what
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27 type they're defined as. We stuff all kinds of data in there ;) [as long as
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28 it's marshallable, gadfly doesn't care]
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29
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30
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31 Additional Instance Requirements
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32 ================================
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33
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34 The instance configuration must specify where the database is. It does this
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35 with GADFLY_DATABASE, which is used as the arguments to the gadfly.gadfly()
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36 method:
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37
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38 Using an on-disk database directly (not a good idea):
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39 GADFLY_DATABASE = (database name, directory)
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40
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41 Using a network database (much better idea):
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42 GADFLY_DATABASE = (policy, password, address, port)
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43
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44 Because multiple accesses directly to a gadfly database aren't handled, but
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45 multiple network accesses are, it's strongly advised that the latter setup be
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46 used.
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47
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48 '''
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49
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50 # standard python modules
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51 import sys, os, time, re, errno, weakref, copy
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52
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53 # roundup modules
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54 from roundup import hyperdb, date, password, roundupdb, security
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55 from roundup.hyperdb import String, Password, Date, Interval, Link, \
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56 Multilink, DatabaseError, Boolean, Number
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57
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58 # the all-important gadfly :)
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59 import gadfly
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60 import gadfly.client
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61 import gadfly.database
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62
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63 # support
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64 from blobfiles import FileStorage
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65 from roundup.indexer import Indexer
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66 from sessions import Sessions
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67
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68 class Database(FileStorage, hyperdb.Database, roundupdb.Database):
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69 # flag to set on retired entries
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70 RETIRED_FLAG = '__hyperdb_retired'
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71
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72 def __init__(self, config, journaltag=None):
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73 ''' Open the database and load the schema from it.
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74 '''
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75 self.config, self.journaltag = config, journaltag
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76 self.dir = config.DATABASE
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77 self.classes = {}
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78 self.indexer = Indexer(self.dir)
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79 self.sessions = Sessions(self.config)
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80 self.security = security.Security(self)
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81
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82 # additional transaction support for external files and the like
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83 self.transactions = []
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84
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85 db = getattr(config, 'GADFLY_DATABASE', ('database', self.dir))
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86 if len(db) == 2:
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87 # ensure files are group readable and writable
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88 os.umask(0002)
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89 try:
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90 self.conn = gadfly.gadfly(*db)
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91 except IOError, error:
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92 if error.errno != errno.ENOENT:
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93 raise
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94 self.database_schema = {}
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95 self.conn = gadfly.gadfly()
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96 self.conn.startup(*db)
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97 cursor = self.conn.cursor()
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98 cursor.execute('create table schema (schema varchar)')
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99 cursor.execute('create table ids (name varchar, num integer)')
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100 else:
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101 cursor = self.conn.cursor()
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102 cursor.execute('select schema from schema')
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103 self.database_schema = cursor.fetchone()[0]
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104 else:
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105 self.conn = gadfly.client.gfclient(*db)
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106 cursor = self.conn.cursor()
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107 cursor.execute('select schema from schema')
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108 self.database_schema = cursor.fetchone()[0]
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109
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110 def __repr__(self):
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111 return '<roundfly 0x%x>'%id(self)
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112
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113 def post_init(self):
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114 ''' Called once the schema initialisation has finished.
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115
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116 We should now confirm that the schema defined by our "classes"
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117 attribute actually matches the schema in the database.
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118 '''
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119 # now detect changes in the schema
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120 for classname, spec in self.classes.items():
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121 if self.database_schema.has_key(classname):
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122 dbspec = self.database_schema[classname]
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123 self.update_class(spec, dbspec)
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124 self.database_schema[classname] = spec.schema()
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125 else:
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126 self.create_class(spec)
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127 self.database_schema[classname] = spec.schema()
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128
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parents:
diff changeset
129 for classname in self.database_schema.keys():
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parents:
diff changeset
130 if not self.classes.has_key(classname):
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parents:
diff changeset
131 self.drop_class(classname)
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parents:
diff changeset
132
972
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diff changeset
133 # update the database version of the schema
968
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diff changeset
134 cursor = self.conn.cursor()
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diff changeset
135 cursor.execute('delete from schema')
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diff changeset
136 cursor.execute('insert into schema values (?)', (self.database_schema,))
972
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diff changeset
137
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diff changeset
138 # reindex the db if necessary
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diff changeset
139 if self.indexer.should_reindex():
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diff changeset
140 self.reindex()
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diff changeset
141
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diff changeset
142 # commit
968
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parents:
diff changeset
143 self.conn.commit()
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parents:
diff changeset
144
972
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diff changeset
145 def reindex(self):
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diff changeset
146 for klass in self.classes.values():
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diff changeset
147 for nodeid in klass.list():
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diff changeset
148 klass.index(nodeid)
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diff changeset
149 self.indexer.save_index()
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diff changeset
150
968
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parents:
diff changeset
151 def determine_columns(self, spec):
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diff changeset
152 ''' Figure the column names and multilink properties from the spec
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parents:
diff changeset
153 '''
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parents:
diff changeset
154 cols = []
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parents:
diff changeset
155 mls = []
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parents:
diff changeset
156 # add the multilinks separately
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parents:
diff changeset
157 for col, prop in spec.properties.items():
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parents:
diff changeset
158 if isinstance(prop, Multilink):
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parents:
diff changeset
159 mls.append(col)
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parents:
diff changeset
160 else:
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diff changeset
161 cols.append('_'+col)
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parents:
diff changeset
162 cols.sort()
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parents:
diff changeset
163 return cols, mls
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diff changeset
164
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parents:
diff changeset
165 def update_class(self, spec, dbspec):
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diff changeset
166 ''' Determine the differences between the current spec and the
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parents:
diff changeset
167 database version of the spec, and update where necessary
972
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diff changeset
168
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diff changeset
169 NOTE that this doesn't work for adding/deleting properties!
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diff changeset
170 ... until gadfly grows an ALTER TABLE command, it's not going to!
968
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parents:
diff changeset
171 '''
972
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diff changeset
172 spec_schema = spec.schema()
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parents: 968
diff changeset
173 if spec_schema == dbspec:
968
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parents:
diff changeset
174 return
972
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diff changeset
175 if __debug__:
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diff changeset
176 print >>hyperdb.DEBUG, 'update_class FIRING'
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diff changeset
177
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diff changeset
178 # key property changed?
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diff changeset
179 if dbspec[0] != spec_schema[0]:
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diff changeset
180 if __debug__:
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diff changeset
181 print >>hyperdb.DEBUG, 'update_class setting keyprop', `spec[0]`
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diff changeset
182 # XXX turn on indexing for the key property
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diff changeset
183
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parents: 968
diff changeset
184 # dict 'em up
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diff changeset
185 spec_propnames,spec_props = [],{}
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diff changeset
186 for propname,prop in spec_schema[1]:
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diff changeset
187 spec_propnames.append(propname)
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diff changeset
188 spec_props[propname] = prop
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diff changeset
189 dbspec_propnames,dbspec_props = [],{}
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diff changeset
190 for propname,prop in dbspec[1]:
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diff changeset
191 dbspec_propnames.append(propname)
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diff changeset
192 dbspec_props[propname] = prop
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diff changeset
193
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diff changeset
194 # we're going to need one of these
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diff changeset
195 cursor = self.conn.cursor()
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diff changeset
196
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diff changeset
197 # now compare
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diff changeset
198 for propname in spec_propnames:
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diff changeset
199 prop = spec_props[propname]
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diff changeset
200 if __debug__:
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diff changeset
201 print >>hyperdb.DEBUG, 'update_class ...', `prop`
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parents: 968
diff changeset
202 if dbspec_props.has_key(propname) and prop==dbspec_props[propname]:
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parents: 968
diff changeset
203 continue
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diff changeset
204 if __debug__:
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diff changeset
205 print >>hyperdb.DEBUG, 'update_class', `prop`
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parents: 968
diff changeset
206
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
207 if not dbspec_props.has_key(propname):
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diff changeset
208 # add the property
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parents: 968
diff changeset
209 if isinstance(prop, Multilink):
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parents: 968
diff changeset
210 sql = 'create table %s_%s (linkid varchar, nodeid '\
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parents: 968
diff changeset
211 'varchar)'%(spec.classname, prop)
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diff changeset
212 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
213 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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parents: 968
diff changeset
214 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
215 else:
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parents: 968
diff changeset
216 # XXX gadfly doesn't have an ALTER TABLE command
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diff changeset
217 raise NotImplementedError
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
218 sql = 'alter table _%s add column (_%s varchar)'%(
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parents: 968
diff changeset
219 spec.classname, propname)
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parents: 968
diff changeset
220 if __debug__:
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parents: 968
diff changeset
221 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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parents: 968
diff changeset
222 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
223 else:
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parents: 968
diff changeset
224 # modify the property
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parents: 968
diff changeset
225 if __debug__:
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parents: 968
diff changeset
226 print >>hyperdb.DEBUG, 'update_class NOOP'
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parents: 968
diff changeset
227 pass # NOOP in gadfly
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diff changeset
228
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parents: 968
diff changeset
229 # and the other way - only worry about deletions here
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diff changeset
230 for propname in dbspec_propnames:
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parents: 968
diff changeset
231 prop = dbspec_props[propname]
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parents: 968
diff changeset
232 if spec_props.has_key(propname):
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parents: 968
diff changeset
233 continue
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parents: 968
diff changeset
234 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
235 print >>hyperdb.DEBUG, 'update_class', `prop`
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
236
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parents: 968
diff changeset
237 # delete the property
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parents: 968
diff changeset
238 if isinstance(prop, Multilink):
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parents: 968
diff changeset
239 sql = 'drop table %s_%s'%(spec.classname, prop)
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parents: 968
diff changeset
240 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
241 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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parents: 968
diff changeset
242 cursor.execute(sql)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
243 else:
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Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
244 # XXX gadfly doesn't have an ALTER TABLE command
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parents: 968
diff changeset
245 raise NotImplementedError
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parents: 968
diff changeset
246 sql = 'alter table _%s delete column _%s'%(spec.classname,
ca0a542b2d19 That's gadfly done, mostly.
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parents: 968
diff changeset
247 propname)
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parents: 968
diff changeset
248 if __debug__:
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diff changeset
249 print >>hyperdb.DEBUG, 'update_class', (self, sql)
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parents: 968
diff changeset
250 cursor.execute(sql)
968
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
251
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
252 def create_class(self, spec):
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parents:
diff changeset
253 ''' Create a database table according to the given spec.
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parents:
diff changeset
254 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
255 cols, mls = self.determine_columns(spec)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
256
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
257 # add on our special columns
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
258 cols.append('id')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
259 cols.append('__retired__')
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
260
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
261 cursor = self.conn.cursor()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
262
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
263 # create the base table
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
264 cols = ','.join(['%s varchar'%x for x in cols])
972
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diff changeset
265 sql = 'create table _%s (%s)'%(spec.classname, cols)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
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parents:
diff changeset
266 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
267 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
268 cursor.execute(sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
269
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parents:
diff changeset
270 # journal table
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parents:
diff changeset
271 cols = ','.join(['%s varchar'%x
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parents:
diff changeset
272 for x in 'nodeid date tag action params'.split()])
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parents:
diff changeset
273 sql = 'create table %s__journal (%s)'%(spec.classname, cols)
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parents:
diff changeset
274 if __debug__:
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parents:
diff changeset
275 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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parents:
diff changeset
276 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
277
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
278 # now create the multilink tables
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parents:
diff changeset
279 for ml in mls:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
280 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%(
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
281 spec.classname, ml)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
282 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
283 print >>hyperdb.DEBUG, 'create_class', (self, sql)
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parents:
diff changeset
284 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
285
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
286 # ID counter
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
287 sql = 'insert into ids (name, num) values (?,?)'
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diff changeset
288 vals = (spec.classname, 1)
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parents:
diff changeset
289 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
290 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
291 cursor.execute(sql, vals)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
292
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
293 def drop_class(self, spec):
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
294 ''' Drop the given table from the database.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
295
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
296 Drop the journal and multilink tables too.
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parents:
diff changeset
297 '''
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parents:
diff changeset
298 # figure the multilinks
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diff changeset
299 mls = []
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parents:
diff changeset
300 for col, prop in spec.properties.items():
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parents:
diff changeset
301 if isinstance(prop, Multilink):
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
302 mls.append(col)
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parents:
diff changeset
303 cursor = self.conn.cursor()
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parents:
diff changeset
304
972
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diff changeset
305 sql = 'drop table _%s'%spec.classname
968
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diff changeset
306 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
307 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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parents:
diff changeset
308 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
309
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diff changeset
310 sql = 'drop table %s__journal'%spec.classname
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parents:
diff changeset
311 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
312 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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parents:
diff changeset
313 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
314
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
315 for ml in mls:
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diff changeset
316 sql = 'drop table %s_%s'%(spec.classname, ml)
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diff changeset
317 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
318 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
319 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
320
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
321 #
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
322 # Classes
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
323 #
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
324 def __getattr__(self, classname):
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diff changeset
325 ''' A convenient way of calling self.getclass(classname).
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diff changeset
326 '''
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diff changeset
327 if self.classes.has_key(classname):
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diff changeset
328 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
329 print >>hyperdb.DEBUG, '__getattr__', (self, classname)
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diff changeset
330 return self.classes[classname]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
331 raise AttributeError, classname
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
332
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
333 def addclass(self, cl):
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parents:
diff changeset
334 ''' Add a Class to the hyperdatabase.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
335 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
336 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
337 print >>hyperdb.DEBUG, 'addclass', (self, cl)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
338 cn = cl.classname
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Richard Jones <richard@users.sourceforge.net>
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diff changeset
339 if self.classes.has_key(cn):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
340 raise ValueError, cn
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
341 self.classes[cn] = cl
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
342
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
343 def getclasses(self):
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diff changeset
344 ''' Return a list of the names of all existing classes.
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parents:
diff changeset
345 '''
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parents:
diff changeset
346 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
347 print >>hyperdb.DEBUG, 'getclasses', (self,)
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parents:
diff changeset
348 l = self.classes.keys()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
349 l.sort()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
350 return l
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
351
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
352 def getclass(self, classname):
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parents:
diff changeset
353 '''Get the Class object representing a particular class.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
354
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
355 If 'classname' is not a valid class name, a KeyError is raised.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
356 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
357 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
358 print >>hyperdb.DEBUG, 'getclass', (self, classname)
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parents:
diff changeset
359 return self.classes[classname]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
360
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
361 def clear(self):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
362 ''' Delete all database contents.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
363
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
364 Note: I don't commit here, which is different behaviour to the
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
365 "nuke from orbit" behaviour in the *dbms.
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
366 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
367 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
368 print >>hyperdb.DEBUG, 'clear', (self,)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
369 cursor = self.conn.cursor()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
370 for cn in self.classes.keys():
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
371 sql = 'delete from _%s'%cn
968
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
372 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
373 print >>hyperdb.DEBUG, 'clear', (self, sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
374 cursor.execute(sql)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
375
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
376 #
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
377 # Node IDs
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
378 #
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
379 def newid(self, classname):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
380 ''' Generate a new id for the given class
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
381 '''
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
382 # get the next ID
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
383 cursor = self.conn.cursor()
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
384 sql = 'select num from ids where name=?'
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
385 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
386 print >>hyperdb.DEBUG, 'newid', (self, sql, classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
387 cursor.execute(sql, (classname, ))
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
388 newid = cursor.fetchone()[0]
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
389
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
390 # update the counter
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
391 sql = 'update ids set num=? where name=?'
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
392 vals = (newid+1, classname)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
393 if __debug__:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
394 print >>hyperdb.DEBUG, 'newid', (self, sql, vals)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
395 cursor.execute(sql, vals)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
396
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
397 # return as string
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
398 return str(newid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
399
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
400 def setid(self, classname, setid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
401 ''' Set the id counter: used during import of database
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
402 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
403 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
404 sql = 'update ids set num=? where name=?'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
405 vals = (setid, spec.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
406 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
407 print >>hyperdb.DEBUG, 'setid', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
408 cursor.execute(sql, vals)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
409
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
410 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
411 # Nodes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
412 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
413
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
414 def addnode(self, classname, nodeid, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
415 ''' Add the specified node to its class's db.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
416 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
417 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
418 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
419 # gadfly requires values for all non-multilink columns
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
420 cl = self.classes[classname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
421 cols, mls = self.determine_columns(cl)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
422
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
423 # default the non-multilink columns
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
424 for col, prop in cl.properties.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
425 if not isinstance(col, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
426 if not node.has_key(col):
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
427 node[col] = None
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
428
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
429 node = self.serialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
430
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
431 # make sure the ordering is correct for column name -> column value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
432 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
433 s = ','.join(['?' for x in cols]) + ',?,?'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
434 cols = ','.join(cols) + ',id,__retired__'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
435
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
436 # perform the inserts
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
437 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
438 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
439 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
440 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
441 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
442
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
443 # insert the multilink rows
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
444 for col in mls:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
445 t = '%s_%s'%(classname, col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
446 for entry in node[col]:
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
447 sql = 'insert into %s (linkid, nodeid) values (?,?)'%t
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
448 vals = (entry, nodeid)
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Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
449 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
450 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
451 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
452
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
453 # make sure we do the commit-time extra stuff for this node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
454 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
455
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
456 def setnode(self, classname, nodeid, node, multilink_changes):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
457 ''' Change the specified node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
458 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
459 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
460 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, node)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
461 node = self.serialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
462
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
463 cl = self.classes[classname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
464 cols = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
465 mls = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
466 # add the multilinks separately
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
467 for col in node.keys():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
468 prop = cl.properties[col]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
469 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
470 mls.append(col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
471 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
472 cols.append('_'+col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
473 cols.sort()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
474
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
475 # make sure the ordering is correct for column name -> column value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
476 vals = tuple([node[col[1:]] for col in cols])
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
477 s = ','.join(['%s=?'%x for x in cols])
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
478 cols = ','.join(cols)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
479
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
480 # perform the update
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
481 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
482 sql = 'update _%s set %s'%(classname, s)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
483 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
484 print >>hyperdb.DEBUG, 'setnode', (self, sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
485 cursor.execute(sql, vals)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
486
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
487 # now the fun bit, updating the multilinks ;)
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
488 for col, (add, remove) in multilink_changes.items():
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
489 tn = '%s_%s'%(classname, col)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
490 if add:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
491 sql = 'insert into %s (nodeid, linkid) values (?,?)'%tn
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
492 vals = [(nodeid, addid) for addid in add]
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
493 if __debug__:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
494 print >>hyperdb.DEBUG, 'setnode (add)', (self, sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
495 cursor.execute(sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
496 if remove:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
497 sql = 'delete from %s where nodeid=? and linkid=?'%tn
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
498 vals = [(nodeid, removeid) for removeid in remove]
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
499 if __debug__:
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
500 print >>hyperdb.DEBUG, 'setnode (rem)', (self, sql, vals)
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
501 cursor.execute(sql, vals)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
502
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
503 # make sure we do the commit-time extra stuff for this node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
504 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
505
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
506 def getnode(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
507 ''' Get a node from the database.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
508 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
509 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
510 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
511 # figure the columns we're fetching
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
512 cl = self.classes[classname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
513 cols, mls = self.determine_columns(cl)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
514 scols = ','.join(cols)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
515
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
516 # perform the basic property fetch
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
517 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
518 sql = 'select %s from _%s where id=?'%(scols, classname)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
519 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
520 print >>hyperdb.DEBUG, 'getnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
521 cursor.execute(sql, (nodeid,))
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
522 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
523 values = cursor.fetchone()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
524 except gadfly.database.error, message:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
525 if message == 'no more results':
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
526 raise IndexError, 'no such %s node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
527 raise
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
528
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
529 # make up the node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
530 node = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
531 for col in range(len(cols)):
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
532 node[cols[col][1:]] = values[col]
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
533
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
534 # now the multilinks
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
535 for col in mls:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
536 # get the link ids
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
537 sql = 'select linkid from %s_%s where nodeid=?'%(classname, col)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
538 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
539 print >>hyperdb.DEBUG, 'getnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
540 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
541 # extract the first column from the result
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
542 node[col] = [x[0] for x in cursor.fetchall()]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
543
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
544 return self.unserialise(classname, node)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
545
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
546 def destroynode(self, classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
547 '''Remove a node from the database. Called exclusively by the
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
548 destroy() method on Class.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
549 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
550 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
551 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
552
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
553 # make sure the node exists
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
554 if not self.hasnode(classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
555 raise IndexError, '%s has no node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
556
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
557 # see if there's any obvious commit actions that we should get rid of
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
558 for entry in self.transactions[:]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
559 if entry[1][:2] == (classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
560 self.transactions.remove(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
561
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
562 # now do the SQL
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
563 cursor = self.conn.cursor()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
564 sql = 'delete from _%s where id=?'%(classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
565 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
566 print >>hyperdb.DEBUG, 'destroynode', (self, sql, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
567 cursor.execute(sql, (nodeid,))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
568
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
569 def serialise(self, classname, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
570 '''Copy the node contents, converting non-marshallable data into
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
571 marshallable data.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
572 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
573 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
574 print >>hyperdb.DEBUG, 'serialise', classname, node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
575 properties = self.getclass(classname).getprops()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
576 d = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
577 for k, v in node.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
578 # if the property doesn't exist, or is the "retired" flag then
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
579 # it won't be in the properties dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
580 if not properties.has_key(k):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
581 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
582 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
583
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
584 # get the property spec
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
585 prop = properties[k]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
586
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
587 if isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
588 d[k] = str(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
589 elif isinstance(prop, Date) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
590 d[k] = v.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
591 elif isinstance(prop, Interval) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
592 d[k] = v.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
593 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
594 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
595 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
596
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
597 def unserialise(self, classname, node):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
598 '''Decode the marshalled node data
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
599 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
600 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
601 print >>hyperdb.DEBUG, 'unserialise', classname, node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
602 properties = self.getclass(classname).getprops()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
603 d = {}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
604 for k, v in node.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
605 # if the property doesn't exist, or is the "retired" flag then
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
606 # it won't be in the properties dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
607 if not properties.has_key(k):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
608 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
609 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
610
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
611 # get the property spec
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
612 prop = properties[k]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
613
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
614 if isinstance(prop, Date) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
615 d[k] = date.Date(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
616 elif isinstance(prop, Interval) and v is not None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
617 d[k] = date.Interval(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
618 elif isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
619 p = password.Password()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
620 p.unpack(v)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
621 d[k] = p
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
622 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
623 d[k] = v
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
624 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
625
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
626 def hasnode(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
627 ''' Determine if the database has a given node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
628 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
629 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
630 sql = 'select count(*) from _%s where id=?'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
631 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
632 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
633 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
634 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
635
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
636 def countnodes(self, classname):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
637 ''' Count the number of nodes that exist for a particular Class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
638 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
639 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
640 sql = 'select count(*) from _%s'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
641 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
642 print >>hyperdb.DEBUG, 'countnodes', (self, sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
643 cursor.execute(sql)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
644 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
645
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
646 def getnodeids(self, classname, retired=0):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
647 ''' Retrieve all the ids of the nodes for a particular Class.
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
648
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
649 Set retired=None to get all nodes. Otherwise it'll get all the
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
650 retired or non-retired nodes, depending on the flag.
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
651 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
652 cursor = self.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
653 # flip the sense of the flag if we don't want all of them
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
654 if retired is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
655 retired = not retired
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
656 sql = 'select id from _%s where __retired__ <> ?'%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
657 if __debug__:
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
658 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
659 cursor.execute(sql, (retired,))
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
660 return [x[0] for x in cursor.fetchall()]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
661
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
662 def addjournal(self, classname, nodeid, action, params, creator=None,
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
663 creation=None):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
664 ''' Journal the Action
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
665 'action' may be:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
666
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
667 'create' or 'set' -- 'params' is a dictionary of property values
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
668 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
669 'retire' -- 'params' is None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
670 '''
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
671 # serialise the parameters now if necessary
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
672 if isinstance(params, type({})):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
673 if action in ('set', 'create'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
674 params = self.serialise(classname, params)
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
675
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
676 # handle supply of the special journalling parameters (usually
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
677 # supplied on importing an existing database)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
678 if creator:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
679 journaltag = creator
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
680 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
681 journaltag = self.journaltag
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
682 if creation:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
683 journaldate = creation.serialise()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
684 else:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
685 journaldate = date.Date().serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
686
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
687 # create the journal entry
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
688 cols = ','.join('nodeid date tag action params'.split())
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
689 entry = (nodeid, journaldate, journaltag, action, params)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
690
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
691 if __debug__:
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
692 print >>hyperdb.DEBUG, 'addjournal', entry
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
693
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
694 # do the insert
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
695 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
696 sql = 'insert into %s__journal (%s) values (?,?,?,?,?)'%(classname,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
697 cols)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
698 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
699 print >>hyperdb.DEBUG, 'addjournal', (self, sql, entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
700 cursor.execute(sql, entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
701
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
702 def getjournal(self, classname, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
703 ''' get the journal for id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
704 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
705 # make sure the node exists
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
706 if not self.hasnode(classname, nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
707 raise IndexError, '%s has no node %s'%(classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
708
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
709 # now get the journal entries
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
710 cols = ','.join('nodeid date tag action params'.split())
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
711 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
712 sql = 'select %s from %s__journal where nodeid=?'%(cols, classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
713 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
714 print >>hyperdb.DEBUG, 'getjournal', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
715 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
716 res = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
717 for nodeid, date_stamp, user, action, params in cursor.fetchall():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
718 res.append((nodeid, date.Date(date_stamp), user, action, params))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
719 return res
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
720
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
721 def pack(self, pack_before):
974
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
722 ''' Delete all journal entries except "create" before 'pack_before'.
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
723 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
724 # get a 'yyyymmddhhmmss' version of the date
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
725 date_stamp = pack_before.serialise()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
726
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
727 # do the delete
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
728 cursor = self.conn.cursor()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
729 for classname in self.classes.keys():
974
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
730 sql = "delete from %s__journal where date<? and "\
84216d63ed9c ahhh, I understand now
Richard Jones <richard@users.sourceforge.net>
parents: 972
diff changeset
731 "action<>'create'"%classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
732 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
733 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
734 cursor.execute(sql, (date_stamp,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
735
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
736 def commit(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
737 ''' Commit the current transactions.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
738
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
739 Save all data changed since the database was opened or since the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
740 last commit() or rollback().
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
741 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
742 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
743 print >>hyperdb.DEBUG, 'commit', (self,)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
744
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
745 # commit gadfly
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
746 self.conn.commit()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
747
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
748 # now, do all the other transaction stuff
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
749 reindex = {}
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
750 for method, args in self.transactions:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
751 reindex[method(*args)] = 1
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
752
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
753 # reindex the nodes that request it
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
754 for classname, nodeid in filter(None, reindex.keys()):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
755 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
756 self.getclass(classname).index(nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
757
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
758 # save the indexer state
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
759 self.indexer.save_index()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
760
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
761 # clear out the transactions
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
762 self.transactions = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
763
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
764 def rollback(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
765 ''' Reverse all actions from the current transaction.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
766
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
767 Undo all the changes made since the database was opened or the last
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
768 commit() or rollback() was performed.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
769 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
770 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
771 print >>hyperdb.DEBUG, 'rollback', (self,)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
772
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
773 # roll back gadfly
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
774 self.conn.rollback()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
775
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
776 # roll back "other" transaction stuff
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
777 for method, args in self.transactions:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
778 # delete temporary files
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
779 if method == self.doStoreFile:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
780 self.rollbackStoreFile(*args)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
781 self.transactions = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
782
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
783 def doSaveNode(self, classname, nodeid, node):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
784 ''' dummy that just generates a reindex event
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
785 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
786 # return the classname, nodeid so we reindex this content
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
787 return (classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
788
1131
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
789 def close(self):
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
790 ''' Close off the connection.
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
791 '''
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
792 self.conn.close()
92e92ae58494 add close() methods where they are missing!
Richard Jones <richard@users.sourceforge.net>
parents: 1127
diff changeset
793
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
794 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
795 # The base Class class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
796 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
797 class Class(hyperdb.Class):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
798 ''' The handle to a particular class of nodes in a hyperdatabase.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
799
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
800 All methods except __repr__ and getnode must be implemented by a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
801 concrete backend Class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
802 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
803
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
804 def __init__(self, db, classname, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
805 '''Create a new class with a given name and property specification.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
806
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
807 'classname' must not collide with the name of an existing class,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
808 or a ValueError is raised. The keyword arguments in 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
809 must map names to property objects, or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
810 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
811 if (properties.has_key('creation') or properties.has_key('activity')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
812 or properties.has_key('creator')):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
813 raise ValueError, '"creation", "activity" and "creator" are '\
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
814 'reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
815
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
816 self.classname = classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
817 self.properties = properties
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
818 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
819 self.key = ''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
820
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
821 # should we journal changes (default yes)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
822 self.do_journal = 1
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
823
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
824 # do the db-related init stuff
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
825 db.addclass(self)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
826
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
827 self.auditors = {'create': [], 'set': [], 'retire': []}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
828 self.reactors = {'create': [], 'set': [], 'retire': []}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
829
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
830 def schema(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
831 ''' A dumpable version of the schema that we can store in the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
832 database
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
833 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
834 return (self.key, [(x, repr(y)) for x,y in self.properties.items()])
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
835
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
836 def enableJournalling(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
837 '''Turn journalling on for this class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
838 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
839 self.do_journal = 1
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
840
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
841 def disableJournalling(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
842 '''Turn journalling off for this class
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
843 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
844 self.do_journal = 0
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
845
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
846 # Editing nodes:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
847 def create(self, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
848 ''' Create a new node of this class and return its id.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
849
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
850 The keyword arguments in 'propvalues' map property names to values.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
851
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
852 The values of arguments must be acceptable for the types of their
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
853 corresponding properties or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
854
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
855 If this class has a key property, it must be present and its value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
856 must not collide with other key strings or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
857
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
858 Any other properties on this class that are missing from the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
859 'propvalues' dictionary are set to None.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
860
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
861 If an id in a link or multilink property does not refer to a valid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
862 node, an IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
863 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
864 if propvalues.has_key('id'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
865 raise KeyError, '"id" is reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
866
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
867 if self.db.journaltag is None:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
868 raise DatabaseError, 'Database open read-only'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
869
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
870 if propvalues.has_key('creation') or propvalues.has_key('activity'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
871 raise KeyError, '"creation" and "activity" are reserved'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
872
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
873 self.fireAuditors('create', None, propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
874
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
875 # new node's id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
876 newid = self.db.newid(self.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
877
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
878 # validate propvalues
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
879 num_re = re.compile('^\d+$')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
880 for key, value in propvalues.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
881 if key == self.key:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
882 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
883 self.lookup(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
884 except KeyError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
885 pass
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
886 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
887 raise ValueError, 'node with key "%s" exists'%value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
888
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
889 # try to handle this property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
890 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
891 prop = self.properties[key]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
892 except KeyError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
893 raise KeyError, '"%s" has no property "%s"'%(self.classname,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
894 key)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
895
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
896 if value is not None and isinstance(prop, Link):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
897 if type(value) != type(''):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
898 raise ValueError, 'link value must be String'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
899 link_class = self.properties[key].classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
900 # if it isn't a number, it's a key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
901 if not num_re.match(value):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
902 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
903 value = self.db.classes[link_class].lookup(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
904 except (TypeError, KeyError):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
905 raise IndexError, 'new property "%s": %s not a %s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
906 key, value, link_class)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
907 elif not self.db.getclass(link_class).hasnode(value):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
908 raise IndexError, '%s has no node %s'%(link_class, value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
909
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
910 # save off the value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
911 propvalues[key] = value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
912
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
913 # register the link with the newly linked node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
914 if self.do_journal and self.properties[key].do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
915 self.db.addjournal(link_class, value, 'link',
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
916 (self.classname, newid, key))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
917
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
918 elif isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
919 if type(value) != type([]):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
920 raise TypeError, 'new property "%s" not a list of ids'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
921
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
922 # clean up and validate the list of links
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
923 link_class = self.properties[key].classname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
924 l = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
925 for entry in value:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
926 if type(entry) != type(''):
1049
Richard Jones <richard@users.sourceforge.net>
parents: 1045
diff changeset
927 raise ValueError, '"%s" multilink value (%r) '\
1045
0564eb2f4bda better error message
Richard Jones <richard@users.sourceforge.net>
parents: 1038
diff changeset
928 'must contain Strings'%(key, value)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
929 # if it isn't a number, it's a key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
930 if not num_re.match(entry):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
931 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
932 entry = self.db.classes[link_class].lookup(entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
933 except (TypeError, KeyError):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
934 raise IndexError, 'new property "%s": %s not a %s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
935 key, entry, self.properties[key].classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
936 l.append(entry)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
937 value = l
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
938 propvalues[key] = value
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
939
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
940 # handle additions
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
941 for nodeid in value:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
942 if not self.db.getclass(link_class).hasnode(nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
943 raise IndexError, '%s has no node %s'%(link_class,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
944 nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
945 # register the link with the newly linked node
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
946 if self.do_journal and self.properties[key].do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
947 self.db.addjournal(link_class, nodeid, 'link',
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
948 (self.classname, newid, key))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
949
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
950 elif isinstance(prop, String):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
951 if type(value) != type(''):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
952 raise TypeError, 'new property "%s" not a string'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
953
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
954 elif isinstance(prop, Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
955 if not isinstance(value, password.Password):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
956 raise TypeError, 'new property "%s" not a Password'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
957
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
958 elif isinstance(prop, Date):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
959 if value is not None and not isinstance(value, date.Date):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
960 raise TypeError, 'new property "%s" not a Date'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
961
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
962 elif isinstance(prop, Interval):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
963 if value is not None and not isinstance(value, date.Interval):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
964 raise TypeError, 'new property "%s" not an Interval'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
965
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
966 elif value is not None and isinstance(prop, Number):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
967 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
968 float(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
969 except ValueError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
970 raise TypeError, 'new property "%s" not numeric'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
971
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
972 elif value is not None and isinstance(prop, Boolean):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
973 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
974 int(value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
975 except ValueError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
976 raise TypeError, 'new property "%s" not boolean'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
977
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
978 # make sure there's data where there needs to be
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
979 for key, prop in self.properties.items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
980 if propvalues.has_key(key):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
981 continue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
982 if key == self.key:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
983 raise ValueError, 'key property "%s" is required'%key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
984 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
985 propvalues[key] = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
986 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
987 propvalues[key] = None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
988
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
989 # done
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
990 self.db.addnode(self.classname, newid, propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
991 if self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
992 self.db.addjournal(self.classname, newid, 'create', propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
993
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
994 self.fireReactors('create', newid, None)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
995
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
996 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
997
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
998 def export_list(self, propnames, nodeid):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
999 ''' Export a node - generate a list of CSV-able data in the order
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1000 specified by propnames for the given node.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1001 '''
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1002 properties = self.getprops()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1003 l = []
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1004 for prop in propnames:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1005 proptype = properties[prop]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1006 value = self.get(nodeid, prop)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1007 # "marshal" data where needed
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1008 if value is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1009 pass
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1010 elif isinstance(proptype, hyperdb.Date):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1011 value = value.get_tuple()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1012 elif isinstance(proptype, hyperdb.Interval):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1013 value = value.get_tuple()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1014 elif isinstance(proptype, hyperdb.Password):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1015 value = str(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1016 l.append(repr(value))
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1017 return l
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1018
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1019 def import_list(self, propnames, proplist):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1020 ''' Import a node - all information including "id" is present and
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1021 should not be sanity checked. Triggers are not triggered. The
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1022 journal should be initialised using the "creator" and "created"
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1023 information.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1024
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1025 Return the nodeid of the node imported.
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1026 '''
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1027 if self.db.journaltag is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1028 raise DatabaseError, 'Database open read-only'
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1029 properties = self.getprops()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1030
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1031 # make the new node's property map
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1032 d = {}
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1033 for i in range(len(propnames)):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1034 # Use eval to reverse the repr() used to output the CSV
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1035 value = eval(proplist[i])
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1036
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1037 # Figure the property for this column
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1038 propname = propnames[i]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1039 prop = properties[propname]
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1040
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1041 # "unmarshal" where necessary
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1042 if propname == 'id':
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1043 newid = value
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1044 continue
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1045 elif value is None:
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1046 # don't set Nones
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1047 continue
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1048 elif isinstance(prop, hyperdb.Date):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1049 value = date.Date(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1050 elif isinstance(prop, hyperdb.Interval):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1051 value = date.Interval(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1052 elif isinstance(prop, hyperdb.Password):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1053 pwd = password.Password()
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1054 pwd.unpack(value)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1055 value = pwd
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1056 d[propname] = value
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1057
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1058 # extract the extraneous journalling gumpf and nuke it
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1059 if d.has_key('creator'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1060 creator = d['creator']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1061 del d['creator']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1062 if d.has_key('creation'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1063 creation = d['creation']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1064 del d['creation']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1065 if d.has_key('activity'):
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1066 del d['activity']
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1067
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1068 # add the node and journal
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1069 self.db.addnode(self.classname, newid, d)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1070 self.db.addjournal(self.classname, newid, 'create', d, creator,
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1071 creation)
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1072 return newid
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1073
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1074 _marker = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1075 def get(self, nodeid, propname, default=_marker, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1076 '''Get the value of a property on an existing node of this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1077
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1078 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1079 IndexError is raised. 'propname' must be the name of a property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1080 of this class or a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1081
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1082 'cache' indicates whether the transaction cache should be queried
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1083 for the node. If the node has been modified and you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1084 determine what its values prior to modification are, you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1085 set cache=0.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1086 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1087 if propname == 'id':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1088 return nodeid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1089
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1090 if propname == 'creation':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1091 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1092 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1093 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1094 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1095 return self.db.getjournal(self.classname, nodeid)[0][1]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1096 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1097 # on the strange chance that there's no journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1098 return date.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1099 if propname == 'activity':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1100 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1101 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1102 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1103 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1104 return self.db.getjournal(self.classname, nodeid)[-1][1]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1105 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1106 # on the strange chance that there's no journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1107 return date.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1108 if propname == 'creator':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1109 if not self.do_journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1110 raise ValueError, 'Journalling is disabled for this class'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1111 journal = self.db.getjournal(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1112 if journal:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1113 name = self.db.getjournal(self.classname, nodeid)[0][2]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1114 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1115 return None
1022
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1116 try:
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1117 return self.db.user.lookup(name)
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1118 except KeyError:
56fbe66a27e1 handle disappearing users for journaltags
Richard Jones <richard@users.sourceforge.net>
parents: 1014
diff changeset
1119 # the journaltag user doesn't exist any more
1025
Richard Jones <richard@users.sourceforge.net>
parents: 1022
diff changeset
1120 return None
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1121
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1122 # get the property (raises KeyErorr if invalid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1123 prop = self.properties[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1124
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1125 # get the node's dict
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1126 d = self.db.getnode(self.classname, nodeid) #, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1127
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1128 if not d.has_key(propname):
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1129 if default is self._marker:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1130 if isinstance(prop, Multilink):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1131 return []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1132 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1133 return None
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1134 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1135 return default
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1136
1014
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1137 # don't pass our list to other code
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1138 if isinstance(prop, Multilink):
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1139 return d[propname][:]
8816534e6a1a Fixed nasty bug that was preventing changes to multilinks going through.
Richard Jones <richard@users.sourceforge.net>
parents: 1002
diff changeset
1140
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1141 return d[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1142
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1143 def getnode(self, nodeid, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1144 ''' Return a convenience wrapper for the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1145
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1146 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1147 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1148
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1149 'cache' indicates whether the transaction cache should be queried
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1150 for the node. If the node has been modified and you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1151 determine what its values prior to modification are, you need to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1152 set cache=0.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1153 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1154 return Node(self, nodeid, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1155
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1156 def set(self, nodeid, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1157 '''Modify a property on an existing node of this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1158
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1159 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1160 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1161
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1162 Each key in 'propvalues' must be the name of a property of this
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1163 class or a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1164
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1165 All values in 'propvalues' must be acceptable types for their
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1166 corresponding properties or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1167
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1168 If the value of the key property is set, it must not collide with
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1169 other key strings or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1170
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1171 If the value of a Link or Multilink property contains an invalid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1172 node id, a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1173 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1174 if not propvalues:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1175 return propvalues
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1176
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1177 if propvalues.has_key('creation') or propvalues.has_key('activity'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1178 raise KeyError, '"creation" and "activity" are reserved'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1179
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1180 if propvalues.has_key('id'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1181 raise KeyError, '"id" is reserved'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1182
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1183 if self.db.journaltag is None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1184 raise DatabaseError, 'Database open read-only'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1185
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1186 self.fireAuditors('set', nodeid, propvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1187 # Take a copy of the node dict so that the subsequent set
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1188 # operation doesn't modify the oldvalues structure.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1189 # XXX used to try the cache here first
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1190 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1191
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1192 node = self.db.getnode(self.classname, nodeid)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1193 if self.is_retired(nodeid):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1194 raise IndexError
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1195 num_re = re.compile('^\d+$')
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1196
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1197 # if the journal value is to be different, store it in here
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1198 journalvalues = {}
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1199
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1200 # remember the add/remove stuff for multilinks, making it easier
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1201 # for the Database layer to do its stuff
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1202 multilink_changes = {}
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1203
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1204 for propname, value in propvalues.items():
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1205 # check to make sure we're not duplicating an existing key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1206 if propname == self.key and node[propname] != value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1207 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1208 self.lookup(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1209 except KeyError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1210 pass
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1211 else:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1212 raise ValueError, 'node with key "%s" exists'%value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1213
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1214 # this will raise the KeyError if the property isn't valid
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1215 # ... we don't use getprops() here because we only care about
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1216 # the writeable properties.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1217 prop = self.properties[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1218
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1219 # if the value's the same as the existing value, no sense in
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1220 # doing anything
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1221 if node.has_key(propname) and value == node[propname]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1222 del propvalues[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1223 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1224
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1225 # do stuff based on the prop type
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1226 if isinstance(prop, Link):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1227 link_class = prop.classname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1228 # if it isn't a number, it's a key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1229 if value is not None and not isinstance(value, type('')):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1230 raise ValueError, 'property "%s" link value be a string'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1231 propname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1232 if isinstance(value, type('')) and not num_re.match(value):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1233 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1234 value = self.db.classes[link_class].lookup(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1235 except (TypeError, KeyError):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1236 raise IndexError, 'new property "%s": %s not a %s'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1237 propname, value, prop.classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1238
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1239 if (value is not None and
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1240 not self.db.getclass(link_class).hasnode(value)):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1241 raise IndexError, '%s has no node %s'%(link_class, value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1242
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1243 if self.do_journal and prop.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1244 # register the unlink with the old linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1245 if node[propname] is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1246 self.db.addjournal(link_class, node[propname], 'unlink',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1247 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1248
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1249 # register the link with the newly linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1250 if value is not None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1251 self.db.addjournal(link_class, value, 'link',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1252 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1253
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1254 elif isinstance(prop, Multilink):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1255 if type(value) != type([]):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1256 raise TypeError, 'new property "%s" not a list of'\
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1257 ' ids'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1258 link_class = self.properties[propname].classname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1259 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1260 for entry in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1261 # if it isn't a number, it's a key
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1262 if type(entry) != type(''):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1263 raise ValueError, 'new property "%s" link value ' \
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1264 'must be a string'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1265 if not num_re.match(entry):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1266 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1267 entry = self.db.classes[link_class].lookup(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1268 except (TypeError, KeyError):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1269 raise IndexError, 'new property "%s": %s not a %s'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1270 propname, entry,
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1271 self.properties[propname].classname)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1272 l.append(entry)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1273 value = l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1274 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1275
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1276 # figure the journal entry for this property
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1277 add = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1278 remove = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1279
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1280 # handle removals
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1281 if node.has_key(propname):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1282 l = node[propname]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1283 else:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1284 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1285 for id in l[:]:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1286 if id in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1287 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1288 # register the unlink with the old linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1289 if self.do_journal and self.properties[propname].do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1290 self.db.addjournal(link_class, id, 'unlink',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1291 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1292 l.remove(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1293 remove.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1294
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1295 # handle additions
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1296 for id in value:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1297 if not self.db.getclass(link_class).hasnode(id):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1298 raise IndexError, '%s has no node %s'%(link_class, id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1299 if id in l:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1300 continue
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1301 # register the link with the newly linked node
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1302 if self.do_journal and self.properties[propname].do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1303 self.db.addjournal(link_class, id, 'link',
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1304 (self.classname, nodeid, propname))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1305 l.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1306 add.append(id)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1307
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1308 # figure the journal entry
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1309 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1310 if add:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1311 l.append(('+', add))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1312 if remove:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1313 l.append(('-', remove))
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1314 multilink_changes[propname] = (add, remove)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1315 if l:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1316 journalvalues[propname] = tuple(l)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1317
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1318 elif isinstance(prop, String):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1319 if value is not None and type(value) != type(''):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1320 raise TypeError, 'new property "%s" not a string'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1321
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1322 elif isinstance(prop, Password):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1323 if not isinstance(value, password.Password):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1324 raise TypeError, 'new property "%s" not a Password'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1325 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1326
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1327 elif value is not None and isinstance(prop, Date):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1328 if not isinstance(value, date.Date):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1329 raise TypeError, 'new property "%s" not a Date'% propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1330 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1331
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1332 elif value is not None and isinstance(prop, Interval):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1333 if not isinstance(value, date.Interval):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1334 raise TypeError, 'new property "%s" not an '\
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1335 'Interval'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1336 propvalues[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1337
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1338 elif value is not None and isinstance(prop, Number):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1339 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1340 float(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1341 except ValueError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1342 raise TypeError, 'new property "%s" not numeric'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1343
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1344 elif value is not None and isinstance(prop, Boolean):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1345 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1346 int(value)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1347 except ValueError:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1348 raise TypeError, 'new property "%s" not boolean'%propname
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1349
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1350 node[propname] = value
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1351
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1352 # nothing to do?
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1353 if not propvalues:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1354 return propvalues
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1355
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1356 # do the set, and journal it
976
8c2036dace08 implemented multilink changes (and a unit test)
Richard Jones <richard@users.sourceforge.net>
parents: 975
diff changeset
1357 self.db.setnode(self.classname, nodeid, node, multilink_changes)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1358
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1359 if self.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1360 propvalues.update(journalvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1361 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1362
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1363 self.fireReactors('set', nodeid, oldvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1364
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1365 return propvalues
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1366
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1367 def retire(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1368 '''Retire a node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1369
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1370 The properties on the node remain available from the get() method,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1371 and the node's id is never reused.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1372
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1373 Retired nodes are not returned by the find(), list(), or lookup()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1374 methods, and other nodes may reuse the values of their key properties.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1375 '''
975
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1376 if self.db.journaltag is None:
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1377 raise DatabaseError, 'Database open read-only'
2ab4d496d936 fixed read-only gadfly retire()
Richard Jones <richard@users.sourceforge.net>
parents: 974
diff changeset
1378
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1379 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1380 sql = 'update _%s set __retired__=1 where id=?'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1381 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1382 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1383 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1384
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1385 def is_retired(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1386 '''Return true if the node is rerired
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1387 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1388 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1389 sql = 'select __retired__ from _%s where id=?'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1390 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1391 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1392 cursor.execute(sql, (nodeid,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1393 return cursor.fetchone()[0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1394
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1395 def destroy(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1396 '''Destroy a node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1397
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1398 WARNING: this method should never be used except in extremely rare
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1399 situations where there could never be links to the node being
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1400 deleted
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1401 WARNING: use retire() instead
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1402 WARNING: the properties of this node will not be available ever again
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1403 WARNING: really, use retire() instead
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1404
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1405 Well, I think that's enough warnings. This method exists mostly to
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1406 support the session storage of the cgi interface.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1407
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1408 The node is completely removed from the hyperdb, including all journal
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1409 entries. It will no longer be available, and will generally break code
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1410 if there are any references to the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1411 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1412 if self.db.journaltag is None:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1413 raise DatabaseError, 'Database open read-only'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1414 self.db.destroynode(self.classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1415
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1416 def history(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1417 '''Retrieve the journal of edits on a particular node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1418
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1419 'nodeid' must be the id of an existing node of this class or an
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1420 IndexError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1421
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1422 The returned list contains tuples of the form
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1423
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1424 (date, tag, action, params)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1425
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1426 'date' is a Timestamp object specifying the time of the change and
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1427 'tag' is the journaltag specified when the database was opened.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1428 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1429 if not self.do_journal:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1430 raise ValueError, 'Journalling is disabled for this class'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1431 return self.db.getjournal(self.classname, nodeid)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1432
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1433 # Locating nodes:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1434 def hasnode(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1435 '''Determine if the given nodeid actually exists
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1436 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1437 return self.db.hasnode(self.classname, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1438
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1439 def setkey(self, propname):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1440 '''Select a String property of this class to be the key property.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1441
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1442 'propname' must be the name of a String property of this class or
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1443 None, or a TypeError is raised. The values of the key property on
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1444 all existing nodes must be unique or a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1445 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1446 # XXX create an index on the key prop column
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1447 prop = self.getprops()[propname]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1448 if not isinstance(prop, String):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1449 raise TypeError, 'key properties must be String'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1450 self.key = propname
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1451
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1452 def getkey(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1453 '''Return the name of the key property for this class or None.'''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1454 return self.key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1455
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1456 def labelprop(self, default_to_id=0):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1457 ''' Return the property name for a label for the given node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1458
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1459 This method attempts to generate a consistent label for the node.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1460 It tries the following in order:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1461 1. key property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1462 2. "name" property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1463 3. "title" property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1464 4. first property from the sorted property name list
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1465 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1466 k = self.getkey()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1467 if k:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1468 return k
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1469 props = self.getprops()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1470 if props.has_key('name'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1471 return 'name'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1472 elif props.has_key('title'):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1473 return 'title'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1474 if default_to_id:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1475 return 'id'
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1476 props = props.keys()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1477 props.sort()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1478 return props[0]
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1479
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1480 def lookup(self, keyvalue):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1481 '''Locate a particular node by its key property and return its id.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1482
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1483 If this class has no key property, a TypeError is raised. If the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1484 'keyvalue' matches one of the values for the key property among
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1485 the nodes in this class, the matching node's id is returned;
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1486 otherwise a KeyError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1487 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1488 if not self.key:
1127
22517f9e3b1e nicer error message
Richard Jones <richard@users.sourceforge.net>
parents: 1109
diff changeset
1489 raise TypeError, 'No key property set for class %s'%self.classname
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1490
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1491 cursor = self.db.conn.cursor()
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1492 sql = 'select id from _%s where _%s=?'%(self.classname, self.key)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1493 if __debug__:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1494 print >>hyperdb.DEBUG, 'lookup', (self, sql, keyvalue)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1495 cursor.execute(sql, (keyvalue,))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1496
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1497 # see if there was a result
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1498 l = cursor.fetchall()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1499 if not l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1500 raise KeyError, keyvalue
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1501
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1502 # return the id
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1503 return l[0][0]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1504
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1505 def find(self, **propspec):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1506 '''Get the ids of nodes in this class which link to the given nodes.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1507
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1508 'propspec' consists of keyword args propname={nodeid:1,}
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1509 'propname' must be the name of a property in this class, or a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1510 KeyError is raised. That property must be a Link or Multilink
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1511 property, or a TypeError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1512
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1513 Any node in this class whose 'propname' property links to any of the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1514 nodeids will be returned. Used by the full text indexing, which knows
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1515 that "foo" occurs in msg1, msg3 and file7, so we have hits on these
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1516 issues:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1517
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1518 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1519 '''
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1520 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1521 print >>hyperdb.DEBUG, 'find', (self, propspec)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1522 if not propspec:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1523 return []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1524 queries = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1525 tables = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1526 allvalues = ()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1527 for prop, values in propspec.items():
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1528 allvalues += tuple(values.keys())
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1529 tables.append('select nodeid from %s_%s where linkid in (%s)'%(
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1530 self.classname, prop, ','.join(['?' for x in values.keys()])))
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1531 sql = '\nintersect\n'.join(tables)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1532 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1533 print >>hyperdb.DEBUG, 'find', (self, sql, allvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1534 cursor = self.db.conn.cursor()
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1535 cursor.execute(sql, allvalues)
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1536 try:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1537 l = [x[0] for x in cursor.fetchall()]
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1538 except gadfly.database.error, message:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1539 if message == 'no more results':
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1540 l = []
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1541 raise
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1542 if __debug__:
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1543 print >>hyperdb.DEBUG, 'find ... ', l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1544 return l
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1545
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1546 def list(self):
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1547 ''' Return a list of the ids of the active nodes in this class.
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1548 '''
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1549 return self.db.getnodeids(self.classname, retired=0)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1550
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1551 def filter(self, search_matches, filterspec, sort, group):
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1552 ''' Return a list of the ids of the active nodes in this class that
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1553 match the 'filter' spec, sorted by the group spec and then the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1554 sort spec
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1555
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1556 "filterspec" is {propname: value(s)}
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1557 "sort" and "group" are (dir, prop) where dir is '+', '-' or None
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1558 and prop is a prop name or None
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1559 "search_matches" is {nodeid: marker}
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1560 '''
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1561 cn = self.classname
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1562
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1563 # figure the WHERE clause from the filterspec
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1564 props = self.getprops()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1565 frum = ['_'+cn]
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1566 where = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1567 args = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1568 for k, v in filterspec.items():
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1569 propclass = props[k]
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1570 if isinstance(propclass, Multilink):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1571 tn = '%s_%s'%(cn, k)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1572 frum.append(tn)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1573 if isinstance(v, type([])):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1574 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1575 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1576 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1577 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1578 where.append('id=%s.nodeid and %s.linkid = ?'%(tn, tn))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1579 args.append(v)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1580 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1581 if isinstance(v, type([])):
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1582 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1583 where.append('_%s in (%s)'%(k, s))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1584 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1585 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1586 where.append('_%s=?'%k)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1587 args.append(v)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1588
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1589 # add results of full text search
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1590 if search_matches is not None:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1591 v = search_matches.keys()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1592 s = ','.join(['?' for x in v])
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1593 where.append('id in (%s)'%s)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1594 args = args + v
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1595
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1596 # figure the order by clause
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1597 orderby = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1598 ordercols = []
1038
Richard Jones <richard@users.sourceforge.net>
parents: 1032
diff changeset
1599 if sort[0] is not None and sort[1] is not None:
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1600 if sort[0] != '-':
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1601 orderby.append('_'+sort[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1602 ordercols.append(sort[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1603 else:
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1604 orderby.append('_'+sort[1]+' desc')
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1605 ordercols.append(sort[1])
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1606
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1607 # figure the group by clause
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1608 groupby = []
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1609 groupcols = []
1038
Richard Jones <richard@users.sourceforge.net>
parents: 1032
diff changeset
1610 if group[0] is not None and group[1] is not None:
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1611 if group[0] != '-':
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1612 groupby.append('_'+group[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1613 groupcols.append(group[1])
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1614 else:
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1615 groupby.append('_'+group[1]+' desc')
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1616 groupcols.append(group[1])
989
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1617
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1618 # construct the SQL
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1619 frum = ','.join(frum)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1620 where = ' and '.join(where)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1621 cols = ['id']
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1622 if orderby:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1623 cols = cols + ordercols
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1624 order = ' order by %s'%(','.join(orderby))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1625 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1626 order = ''
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1627 if groupby:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1628 cols = cols + groupcols
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1629 group = ' group by %s'%(','.join(groupby))
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1630 else:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1631 group = ''
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1632 cols = ','.join(cols)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1633 sql = 'select %s from %s where %s%s%s'%(cols, frum, where, order,
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1634 group)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1635 args = tuple(args)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1636 if __debug__:
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1637 print >>hyperdb.DEBUG, 'find', (self, sql, args)
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1638 cursor = self.db.conn.cursor()
8fd80699fa3c very basic filter support
Richard Jones <richard@users.sourceforge.net>
parents: 976
diff changeset
1639 cursor.execute(sql, args)
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1640
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1641 def count(self):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1642 '''Get the number of nodes in this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1643
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1644 If the returned integer is 'numnodes', the ids of all the nodes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1645 in this class run from 1 to numnodes, and numnodes+1 will be the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1646 id of the next node to be created in this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1647 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1648 return self.db.countnodes(self.classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1649
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1650 # Manipulating properties:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1651 def getprops(self, protected=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1652 '''Return a dictionary mapping property names to property objects.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1653 If the "protected" flag is true, we include protected properties -
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1654 those which may not be modified.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1655 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1656 d = self.properties.copy()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1657 if protected:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1658 d['id'] = String()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1659 d['creation'] = hyperdb.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1660 d['activity'] = hyperdb.Date()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1661 d['creator'] = hyperdb.Link("user")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1662 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1663
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1664 def addprop(self, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1665 '''Add properties to this class.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1666
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1667 The keyword arguments in 'properties' must map names to property
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1668 objects, or a TypeError is raised. None of the keys in 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1669 may collide with the names of existing properties, or a ValueError
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1670 is raised before any properties have been added.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1671 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1672 for key in properties.keys():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1673 if self.properties.has_key(key):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1674 raise ValueError, key
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1675 self.properties.update(properties)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1676
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1677 def index(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1678 '''Add (or refresh) the node to search indexes
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1679 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1680 # find all the String properties that have indexme
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1681 for prop, propclass in self.getprops().items():
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1682 if isinstance(propclass, String) and propclass.indexme:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1683 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1684 value = str(self.get(nodeid, prop))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1685 except IndexError:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1686 # node no longer exists - entry should be removed
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1687 self.db.indexer.purge_entry((self.classname, nodeid, prop))
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1688 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1689 # and index them under (classname, nodeid, property)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1690 self.db.indexer.add_text((self.classname, nodeid, prop),
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1691 value)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1692
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1693
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1694 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1695 # Detector interface
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1696 #
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1697 def audit(self, event, detector):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1698 '''Register a detector
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1699 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1700 l = self.auditors[event]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1701 if detector not in l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1702 self.auditors[event].append(detector)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1703
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1704 def fireAuditors(self, action, nodeid, newvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1705 '''Fire all registered auditors.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1706 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1707 for audit in self.auditors[action]:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1708 audit(self.db, self, nodeid, newvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1709
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1710 def react(self, event, detector):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1711 '''Register a detector
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1712 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1713 l = self.reactors[event]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1714 if detector not in l:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1715 self.reactors[event].append(detector)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1716
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1717 def fireReactors(self, action, nodeid, oldvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1718 '''Fire all registered reactors.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1719 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1720 for react in self.reactors[action]:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1721 react(self.db, self, nodeid, oldvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1722
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1723 class FileClass(Class):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1724 '''This class defines a large chunk of data. To support this, it has a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1725 mandatory String property "content" which is typically saved off
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1726 externally to the hyperdb.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1727
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1728 The default MIME type of this data is defined by the
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1729 "default_mime_type" class attribute, which may be overridden by each
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1730 node if the class defines a "type" String property.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1731 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1732 default_mime_type = 'text/plain'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1733
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1734 def create(self, **propvalues):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1735 ''' snaffle the file propvalue and store in a file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1736 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1737 content = propvalues['content']
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1738 del propvalues['content']
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1739 newid = Class.create(self, **propvalues)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1740 self.db.storefile(self.classname, newid, None, content)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1741 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1742
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1743 def import_list(self, propnames, proplist):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1744 ''' Trap the "content" property...
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1745 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1746 # dupe this list so we don't affect others
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1747 propnames = propnames[:]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1748
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1749 # extract the "content" property from the proplist
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1750 i = propnames.index('content')
1143
Richard Jones <richard@users.sourceforge.net>
parents: 1131
diff changeset
1751 content = eval(proplist[i])
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1752 del propnames[i]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1753 del proplist[i]
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1754
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1755 # do the normal import
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1756 newid = Class.import_list(self, propnames, proplist)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1757
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1758 # save off the "content" file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1759 self.db.storefile(self.classname, newid, None, content)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1760 return newid
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1761
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1762 _marker = []
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1763 def get(self, nodeid, propname, default=_marker, cache=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1764 ''' trap the content propname and get it from the file
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1765 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1766
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1767 poss_msg = 'Possibly a access right configuration problem.'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1768 if propname == 'content':
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1769 try:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1770 return self.db.getfile(self.classname, nodeid, None)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1771 except IOError, (strerror):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1772 # BUG: by catching this we donot see an error in the log.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1773 return 'ERROR reading file: %s%s\n%s\n%s'%(
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1774 self.classname, nodeid, poss_msg, strerror)
972
ca0a542b2d19 That's gadfly done, mostly.
Richard Jones <richard@users.sourceforge.net>
parents: 968
diff changeset
1775 if default is not self._marker:
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1776 return Class.get(self, nodeid, propname, default, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1777 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1778 return Class.get(self, nodeid, propname, cache=cache)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1779
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1780 def getprops(self, protected=1):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1781 ''' In addition to the actual properties on the node, these methods
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1782 provide the "content" property. If the "protected" flag is true,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1783 we include protected properties - those which may not be
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1784 modified.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1785 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1786 d = Class.getprops(self, protected=protected).copy()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1787 if protected:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1788 d['content'] = hyperdb.String()
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1789 return d
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1790
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1791 def index(self, nodeid):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1792 ''' Index the node in the search index.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1793
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1794 We want to index the content in addition to the normal String
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1795 property indexing.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1796 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1797 # perform normal indexing
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1798 Class.index(self, nodeid)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1799
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1800 # get the content to index
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1801 content = self.get(nodeid, 'content')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1802
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1803 # figure the mime type
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1804 if self.properties.has_key('type'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1805 mime_type = self.get(nodeid, 'type')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1806 else:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1807 mime_type = self.default_mime_type
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1808
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1809 # and index!
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1810 self.db.indexer.add_text((self.classname, nodeid, 'content'), content,
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1811 mime_type)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1812
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1813 # XXX deviation from spec - was called ItemClass
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1814 class IssueClass(Class, roundupdb.IssueClass):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1815 # Overridden methods:
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1816 def __init__(self, db, classname, **properties):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1817 '''The newly-created class automatically includes the "messages",
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1818 "files", "nosy", and "superseder" properties. If the 'properties'
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1819 dictionary attempts to specify any of these properties or a
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1820 "creation" or "activity" property, a ValueError is raised.
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1821 '''
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1822 if not properties.has_key('title'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1823 properties['title'] = hyperdb.String(indexme='yes')
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1824 if not properties.has_key('messages'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1825 properties['messages'] = hyperdb.Multilink("msg")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1826 if not properties.has_key('files'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1827 properties['files'] = hyperdb.Multilink("file")
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1828 if not properties.has_key('nosy'):
1002
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1829 # note: journalling is turned off as it really just wastes
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1830 # space. this behaviour may be overridden in an instance
1798d2fa9fec Hack hack...
Richard Jones <richard@users.sourceforge.net>
parents: 989
diff changeset
1831 properties['nosy'] = hyperdb.Multilink("user", do_journal="no")
968
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1832 if not properties.has_key('superseder'):
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1833 properties['superseder'] = hyperdb.Multilink(classname)
07d8a4e296f8 Whee! It's not finished yet, but I can create a new instance...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1834 Class.__init__(self, db, classname, **properties)
Roundup Issue Tracker: http://roundup-tracker.org/