1165
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1 # $Id: rdbms_common.py,v 1.1 2002-09-18 05:07:47 richard Exp $
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
2
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
3 # standard python modules
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
4 import sys, os, time, re, errno, weakref, copy
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
5
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
6 # roundup modules
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
7 from roundup import hyperdb, date, password, roundupdb, security
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
8 from roundup.hyperdb import String, Password, Date, Interval, Link, \
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
9 Multilink, DatabaseError, Boolean, Number
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
10
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
11 # support
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
12 from blobfiles import FileStorage
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
13 from roundup.indexer import Indexer
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
14 from sessions import Sessions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
15
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
16 class Database(FileStorage, hyperdb.Database, roundupdb.Database):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
17 # flag to set on retired entries
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
18 RETIRED_FLAG = '__hyperdb_retired'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
19
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
20 def __init__(self, config, journaltag=None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
21 ''' Open the database and load the schema from it.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
22 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
23 self.config, self.journaltag = config, journaltag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
24 self.dir = config.DATABASE
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
25 self.classes = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
26 self.indexer = Indexer(self.dir)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
27 self.sessions = Sessions(self.config)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
28 self.security = security.Security(self)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
29
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
30 # additional transaction support for external files and the like
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
31 self.transactions = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
32
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
33 # open a connection to the database, creating the "conn" attribute
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
34 self.open_connection()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
35
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
36 def open_connection(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
37 ''' Open a connection to the database, creating it if necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
38 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
39 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
40
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
41 def sql(self, cursor, sql, args=None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
42 ''' Execute the sql with the optional args.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
43 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
44 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
45 print >>hyperdb.DEBUG, (self, sql, args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
46 if args:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
47 cursor.execute(sql, args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
48 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
49 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
50
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
51 def sql_fetchone(self, cursor):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
52 ''' Fetch a single row. If there's nothing to fetch, return None.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
53 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
54 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
55
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
56 def save_dbschema(self, cursor, schema):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
57 ''' Save the schema definition that the database currently implements
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
58 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
59 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
60
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
61 def load_dbschema(self, cursor):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
62 ''' Load the schema definition that the database currently implements
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
63 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
64 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
65
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
66 def post_init(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
67 ''' Called once the schema initialisation has finished.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
68
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
69 We should now confirm that the schema defined by our "classes"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
70 attribute actually matches the schema in the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
71 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
72 # now detect changes in the schema
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
73 for classname, spec in self.classes.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
74 if self.database_schema.has_key(classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
75 dbspec = self.database_schema[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
76 self.update_class(spec, dbspec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
77 self.database_schema[classname] = spec.schema()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
78 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
79 self.create_class(spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
80 self.database_schema[classname] = spec.schema()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
81
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
82 for classname in self.database_schema.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
83 if not self.classes.has_key(classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
84 self.drop_class(classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
85
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
86 # update the database version of the schema
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
87 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
88 self.sql(cursor, 'delete from schema')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
89 self.save_dbschema(cursor, self.database_schema)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
90
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
91 # reindex the db if necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
92 if self.indexer.should_reindex():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
93 self.reindex()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
94
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
95 # commit
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
96 self.conn.commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
97
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
98 def reindex(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
99 for klass in self.classes.values():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
100 for nodeid in klass.list():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
101 klass.index(nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
102 self.indexer.save_index()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
103
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
104 def determine_columns(self, properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
105 ''' Figure the column names and multilink properties from the spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
106
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
107 "properties" is a list of (name, prop) where prop may be an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
108 instance of a hyperdb "type" _or_ a string repr of that type.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
109 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
110 cols = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
111 mls = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
112 # add the multilinks separately
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
113 for col, prop in properties:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
114 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
115 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
116 elif isinstance(prop, type('')) and prop.find('Multilink') != -1:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
117 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
118 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
119 cols.append('_'+col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
120 cols.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
121 return cols, mls
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
122
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
123 def update_class(self, spec, dbspec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
124 ''' Determine the differences between the current spec and the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
125 database version of the spec, and update where necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
126 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
127 spec_schema = spec.schema()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
128 if spec_schema == dbspec:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
129 return
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
130 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
131 print >>hyperdb.DEBUG, 'update_class FIRING'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
132
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
133 # key property changed?
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
134 if dbspec[0] != spec_schema[0]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
135 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
136 print >>hyperdb.DEBUG, 'update_class setting keyprop', `spec[0]`
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
137 # XXX turn on indexing for the key property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
138
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
139 # dict 'em up
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
140 spec_propnames,spec_props = [],{}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
141 for propname,prop in spec_schema[1]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
142 spec_propnames.append(propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
143 spec_props[propname] = prop
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
144 dbspec_propnames,dbspec_props = [],{}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
145 for propname,prop in dbspec[1]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
146 dbspec_propnames.append(propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
147 dbspec_props[propname] = prop
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
148
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
149 # we're going to need one of these
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
150 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
151
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
152 # now compare
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
153 for propname in spec_propnames:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
154 prop = spec_props[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
155 if dbspec_props.has_key(propname) and prop==dbspec_props[propname]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
156 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
157 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
158 print >>hyperdb.DEBUG, 'update_class ADD', (propname, prop)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
159
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
160 if not dbspec_props.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
161 # add the property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
162 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
163 # all we have to do here is create a new table, easy!
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
164 self.create_multilink_table(cursor, spec, propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
165 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
166
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
167 # no ALTER TABLE, so we:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
168 # 1. pull out the data, including an extra None column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
169 oldcols, x = self.determine_columns(dbspec[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
170 oldcols.append('id')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
171 oldcols.append('__retired__')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
172 cn = spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
173 sql = 'select %s,%s from _%s'%(','.join(oldcols), self.arg, cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
174 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
175 print >>hyperdb.DEBUG, 'update_class', (self, sql, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
176 cursor.execute(sql, (None,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
177 olddata = cursor.fetchall()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
178
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
179 # 2. drop the old table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
180 cursor.execute('drop table _%s'%cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
181
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
182 # 3. create the new table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
183 cols, mls = self.create_class_table(cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
184 # ensure the new column is last
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
185 cols.remove('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
186 assert oldcols == cols, "Column lists don't match!"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
187 cols.append('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
188
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
189 # 4. populate with the data from step one
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
190 s = ','.join([self.arg for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
191 scols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
192 sql = 'insert into _%s (%s) values (%s)'%(cn, scols, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
193
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
194 # GAH, nothing had better go wrong from here on in... but
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
195 # we have to commit the drop...
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
196 # XXX this isn't necessary in sqlite :(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
197 self.conn.commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
198
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
199 # do the insert
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
200 for row in olddata:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
201 self.sql(cursor, sql, tuple(row))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
202
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
203 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
204 # modify the property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
205 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
206 print >>hyperdb.DEBUG, 'update_class NOOP'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
207 pass # NOOP in gadfly
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
208
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
209 # and the other way - only worry about deletions here
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
210 for propname in dbspec_propnames:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
211 prop = dbspec_props[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
212 if spec_props.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
213 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
214 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
215 print >>hyperdb.DEBUG, 'update_class REMOVE', `prop`
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
216
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
217 # delete the property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
218 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
219 sql = 'drop table %s_%s'%(spec.classname, prop)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
220 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
221 print >>hyperdb.DEBUG, 'update_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
222 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
223 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
224 # no ALTER TABLE, so we:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
225 # 1. pull out the data, excluding the removed column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
226 oldcols, x = self.determine_columns(spec.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
227 oldcols.append('id')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
228 oldcols.append('__retired__')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
229 # remove the missing column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
230 oldcols.remove('_'+propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
231 cn = spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
232 sql = 'select %s from _%s'%(','.join(oldcols), cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
233 cursor.execute(sql, (None,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
234 olddata = sql.fetchall()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
235
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
236 # 2. drop the old table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
237 cursor.execute('drop table _%s'%cn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
238
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
239 # 3. create the new table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
240 cols, mls = self.create_class_table(self, cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
241 assert oldcols != cols, "Column lists don't match!"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
242
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
243 # 4. populate with the data from step one
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
244 qs = ','.join([self.arg for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
245 sql = 'insert into _%s values (%s)'%(cn, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
246 cursor.execute(sql, olddata)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
247
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
248 def create_class_table(self, cursor, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
249 ''' create the class table for the given spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
250 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
251 cols, mls = self.determine_columns(spec.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
252
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
253 # add on our special columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
254 cols.append('id')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
255 cols.append('__retired__')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
256
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
257 # create the base table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
258 scols = ','.join(['%s varchar'%x for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
259 sql = 'create table _%s (%s)'%(spec.classname, scols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
260 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
261 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
262 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
263
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
264 return cols, mls
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
265
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
266 def create_journal_table(self, cursor, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
267 ''' create the journal table for a class given the spec and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
268 already-determined cols
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
269 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
270 # journal table
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
271 cols = ','.join(['%s varchar'%x
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
272 for x in 'nodeid date tag action params'.split()])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
273 sql = 'create table %s__journal (%s)'%(spec.classname, cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
274 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
275 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
276 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
277
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
278 def create_multilink_table(self, cursor, spec, ml):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
279 ''' Create a multilink table for the "ml" property of the class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
280 given by the spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
281 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
282 sql = 'create table %s_%s (linkid varchar, nodeid varchar)'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
283 spec.classname, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
284 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
285 print >>hyperdb.DEBUG, 'create_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
286 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
287
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
288 def create_class(self, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
289 ''' Create a database table according to the given spec.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
290 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
291 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
292 cols, mls = self.create_class_table(cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
293 self.create_journal_table(cursor, spec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
294
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
295 # now create the multilink tables
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
296 for ml in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
297 self.create_multilink_table(cursor, spec, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
298
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
299 # ID counter
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
300 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
301 vals = (spec.classname, 1)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
302 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
303 print >>hyperdb.DEBUG, 'create_class', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
304 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
305
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
306 def drop_class(self, spec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
307 ''' Drop the given table from the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
308
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
309 Drop the journal and multilink tables too.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
310 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
311 # figure the multilinks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
312 mls = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
313 for col, prop in spec.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
314 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
315 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
316 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
317
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
318 sql = 'drop table _%s'%spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
319 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
320 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
321 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
322
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
323 sql = 'drop table %s__journal'%spec.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
324 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
325 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
326 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
327
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
328 for ml in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
329 sql = 'drop table %s_%s'%(spec.classname, ml)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
330 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
331 print >>hyperdb.DEBUG, 'drop_class', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
332 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
333
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
334 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
335 # Classes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
336 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
337 def __getattr__(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
338 ''' A convenient way of calling self.getclass(classname).
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
339 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
340 if self.classes.has_key(classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
341 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
342 print >>hyperdb.DEBUG, '__getattr__', (self, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
343 return self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
344 raise AttributeError, classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
345
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
346 def addclass(self, cl):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
347 ''' Add a Class to the hyperdatabase.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
348 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
349 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
350 print >>hyperdb.DEBUG, 'addclass', (self, cl)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
351 cn = cl.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
352 if self.classes.has_key(cn):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
353 raise ValueError, cn
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
354 self.classes[cn] = cl
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
355
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
356 def getclasses(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
357 ''' Return a list of the names of all existing classes.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
358 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
359 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
360 print >>hyperdb.DEBUG, 'getclasses', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
361 l = self.classes.keys()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
362 l.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
363 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
364
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
365 def getclass(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
366 '''Get the Class object representing a particular class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
367
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
368 If 'classname' is not a valid class name, a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
369 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
370 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
371 print >>hyperdb.DEBUG, 'getclass', (self, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
372 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
373 return self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
374 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
375 raise KeyError, 'There is no class called "%s"'%classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
376
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
377 def clear(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
378 ''' Delete all database contents.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
379
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
380 Note: I don't commit here, which is different behaviour to the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
381 "nuke from orbit" behaviour in the *dbms.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
382 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
383 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
384 print >>hyperdb.DEBUG, 'clear', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
385 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
386 for cn in self.classes.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
387 sql = 'delete from _%s'%cn
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
388 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
389 print >>hyperdb.DEBUG, 'clear', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
390 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
391
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
392 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
393 # Node IDs
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
394 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
395 def newid(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
396 ''' Generate a new id for the given class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
397 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
398 # get the next ID
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
399 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
400 sql = 'select num from ids where name=%s'%self.arg
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
401 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
402 print >>hyperdb.DEBUG, 'newid', (self, sql, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
403 cursor.execute(sql, (classname, ))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
404 newid = cursor.fetchone()[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
405
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
406 # update the counter
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
407 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
408 vals = (int(newid)+1, classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
409 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
410 print >>hyperdb.DEBUG, 'newid', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
411 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
412
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
413 # return as string
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
414 return str(newid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
415
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
416 def setid(self, classname, setid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
417 ''' Set the id counter: used during import of database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
418 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
419 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
420 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
421 vals = (setid, spec.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
422 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
423 print >>hyperdb.DEBUG, 'setid', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
424 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
425
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
426 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
427 # Nodes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
428 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
429
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
430 def addnode(self, classname, nodeid, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
431 ''' Add the specified node to its class's db.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
432 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
433 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
434 print >>hyperdb.DEBUG, 'addnode', (self, classname, nodeid, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
435 # gadfly requires values for all non-multilink columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
436 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
437 cols, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
438
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
439 # default the non-multilink columns
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
440 for col, prop in cl.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
441 if not isinstance(col, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
442 if not node.has_key(col):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
443 node[col] = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
444
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
445 node = self.serialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
446
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
447 # make sure the ordering is correct for column name -> column value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
448 vals = tuple([node[col[1:]] for col in cols]) + (nodeid, 0)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
449 s = ','.join([self.arg for x in cols]) + ',%s,%s'%(self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
450 cols = ','.join(cols) + ',id,__retired__'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
451
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
452 # perform the inserts
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
453 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
454 sql = 'insert into _%s (%s) values (%s)'%(classname, cols, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
455 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
456 print >>hyperdb.DEBUG, 'addnode', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
457 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
458
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
459 # insert the multilink rows
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
460 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
461 t = '%s_%s'%(classname, col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
462 for entry in node[col]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
463 sql = 'insert into %s (linkid, nodeid) values (%s,%s)'%(t,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
464 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
465 self.sql(cursor, sql, (entry, nodeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
466
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
467 # make sure we do the commit-time extra stuff for this node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
468 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
469
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
470 def setnode(self, classname, nodeid, node, multilink_changes):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
471 ''' Change the specified node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
472 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
473 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
474 print >>hyperdb.DEBUG, 'setnode', (self, classname, nodeid, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
475 node = self.serialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
476
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
477 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
478 cols = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
479 mls = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
480 # add the multilinks separately
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
481 for col in node.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
482 prop = cl.properties[col]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
483 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
484 mls.append(col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
485 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
486 cols.append('_'+col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
487 cols.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
488
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
489 # make sure the ordering is correct for column name -> column value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
490 vals = tuple([node[col[1:]] for col in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
491 s = ','.join(['%s=%s'%(x, self.arg) for x in cols])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
492 cols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
493
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
494 # perform the update
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
495 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
496 sql = 'update _%s set %s'%(classname, s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
497 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
498 print >>hyperdb.DEBUG, 'setnode', (self, sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
499 cursor.execute(sql, vals)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
500
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
501 # now the fun bit, updating the multilinks ;)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
502 for col, (add, remove) in multilink_changes.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
503 tn = '%s_%s'%(classname, col)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
504 if add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
505 sql = 'insert into %s (nodeid, linkid) values (%s,%s)'%(tn,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
506 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
507 for addid in add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
508 self.sql(cursor, sql, (nodeid, addid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
509 if remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
510 sql = 'delete from %s where nodeid=%s and linkid=%s'%(tn,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
511 self.arg, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
512 for removeid in remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
513 self.sql(cursor, sql, (nodeid, removeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
514
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
515 # make sure we do the commit-time extra stuff for this node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
516 self.transactions.append((self.doSaveNode, (classname, nodeid, node)))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
517
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
518 def getnode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
519 ''' Get a node from the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
520 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
521 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
522 print >>hyperdb.DEBUG, 'getnode', (self, classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
523 # figure the columns we're fetching
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
524 cl = self.classes[classname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
525 cols, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
526 scols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
527
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
528 # perform the basic property fetch
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
529 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
530 sql = 'select %s from _%s where id=%s'%(scols, classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
531 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
532
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
533 values = self.sql_fetchone(cursor)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
534 if values is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
535 raise IndexError, 'no such %s node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
536
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
537 # make up the node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
538 node = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
539 for col in range(len(cols)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
540 node[cols[col][1:]] = values[col]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
541
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
542 # now the multilinks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
543 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
544 # get the link ids
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
545 sql = 'select linkid from %s_%s where nodeid=%s'%(classname, col,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
546 self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
547 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
548 # extract the first column from the result
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
549 node[col] = [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
550
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
551 return self.unserialise(classname, node)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
552
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
553 def destroynode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
554 '''Remove a node from the database. Called exclusively by the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
555 destroy() method on Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
556 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
557 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
558 print >>hyperdb.DEBUG, 'destroynode', (self, classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
559
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
560 # make sure the node exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
561 if not self.hasnode(classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
562 raise IndexError, '%s has no node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
563
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
564 # see if there's any obvious commit actions that we should get rid of
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
565 for entry in self.transactions[:]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
566 if entry[1][:2] == (classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
567 self.transactions.remove(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
568
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
569 # now do the SQL
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
570 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
571 sql = 'delete from _%s where id=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
572 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
573
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
574 # remove from multilnks
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
575 cl = self.getclass(classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
576 x, mls = self.determine_columns(cl.properties.items())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
577 for col in mls:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
578 # get the link ids
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
579 sql = 'delete from %s_%s where nodeid=%s'%(classname, col, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
580 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
581
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
582 # remove journal entries
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
583 sql = 'delete from %s__journal where nodeid=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
584 self.sql(cursor, sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
585
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
586 def serialise(self, classname, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
587 '''Copy the node contents, converting non-marshallable data into
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
588 marshallable data.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
589 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
590 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
591 print >>hyperdb.DEBUG, 'serialise', classname, node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
592 properties = self.getclass(classname).getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
593 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
594 for k, v in node.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
595 # if the property doesn't exist, or is the "retired" flag then
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
596 # it won't be in the properties dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
597 if not properties.has_key(k):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
598 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
599 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
600
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
601 # get the property spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
602 prop = properties[k]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
603
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
604 if isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
605 d[k] = str(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
606 elif isinstance(prop, Date) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
607 d[k] = v.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
608 elif isinstance(prop, Interval) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
609 d[k] = v.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
610 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
611 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
612 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
613
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
614 def unserialise(self, classname, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
615 '''Decode the marshalled node data
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
616 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
617 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
618 print >>hyperdb.DEBUG, 'unserialise', classname, node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
619 properties = self.getclass(classname).getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
620 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
621 for k, v in node.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
622 # if the property doesn't exist, or is the "retired" flag then
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
623 # it won't be in the properties dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
624 if not properties.has_key(k):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
625 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
626 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
627
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
628 # get the property spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
629 prop = properties[k]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
630
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
631 if isinstance(prop, Date) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
632 d[k] = date.Date(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
633 elif isinstance(prop, Interval) and v is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
634 d[k] = date.Interval(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
635 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
636 p = password.Password()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
637 p.unpack(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
638 d[k] = p
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
639 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
640 d[k] = v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
641 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
642
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
643 def hasnode(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
644 ''' Determine if the database has a given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
645 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
646 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
647 sql = 'select count(*) from _%s where id=%s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
648 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
649 print >>hyperdb.DEBUG, 'hasnode', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
650 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
651 return int(cursor.fetchone()[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
652
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
653 def countnodes(self, classname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
654 ''' Count the number of nodes that exist for a particular Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
655 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
656 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
657 sql = 'select count(*) from _%s'%classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
658 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
659 print >>hyperdb.DEBUG, 'countnodes', (self, sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
660 cursor.execute(sql)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
661 return cursor.fetchone()[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
662
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
663 def getnodeids(self, classname, retired=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
664 ''' Retrieve all the ids of the nodes for a particular Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
665
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
666 Set retired=None to get all nodes. Otherwise it'll get all the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
667 retired or non-retired nodes, depending on the flag.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
668 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
669 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
670 # flip the sense of the flag if we don't want all of them
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
671 if retired is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
672 retired = not retired
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
673 sql = 'select id from _%s where __retired__ <> %s'%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
674 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
675 print >>hyperdb.DEBUG, 'getnodeids', (self, sql, retired)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
676 cursor.execute(sql, (retired,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
677 return [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
678
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
679 def addjournal(self, classname, nodeid, action, params, creator=None,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
680 creation=None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
681 ''' Journal the Action
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
682 'action' may be:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
683
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
684 'create' or 'set' -- 'params' is a dictionary of property values
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
685 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
686 'retire' -- 'params' is None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
687 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
688 # serialise the parameters now if necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
689 if isinstance(params, type({})):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
690 if action in ('set', 'create'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
691 params = self.serialise(classname, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
692
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
693 # handle supply of the special journalling parameters (usually
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
694 # supplied on importing an existing database)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
695 if creator:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
696 journaltag = creator
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
697 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
698 journaltag = self.journaltag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
699 if creation:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
700 journaldate = creation.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
701 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
702 journaldate = date.Date().serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
703
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
704 # create the journal entry
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
705 cols = ','.join('nodeid date tag action params'.split())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
706
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
707 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
708 print >>hyperdb.DEBUG, 'addjournal', (nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
709 journaltag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
710
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
711 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
712 self.save_journal(cursor, classname, cols, nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
713 journaltag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
714
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
715 def save_journal(self, cursor, classname, cols, nodeid, journaldate,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
716 journaltag, action, params):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
717 ''' Save the journal entry to the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
718 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
719 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
720
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
721 def getjournal(self, classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
722 ''' get the journal for id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
723 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
724 # make sure the node exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
725 if not self.hasnode(classname, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
726 raise IndexError, '%s has no node %s'%(classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
727
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
728 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
729 cols = ','.join('nodeid date tag action params'.split())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
730 return self.load_journal(cursor, classname, cols, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
731
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
732 def load_journal(self, cursor, classname, cols, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
733 ''' Load the journal from the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
734 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
735 raise NotImplemented
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
736
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
737 def pack(self, pack_before):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
738 ''' Delete all journal entries except "create" before 'pack_before'.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
739 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
740 # get a 'yyyymmddhhmmss' version of the date
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
741 date_stamp = pack_before.serialise()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
742
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
743 # do the delete
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
744 cursor = self.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
745 for classname in self.classes.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
746 sql = "delete from %s__journal where date<%s and "\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
747 "action<>'create'"%(classname, self.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
748 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
749 print >>hyperdb.DEBUG, 'pack', (self, sql, date_stamp)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
750 cursor.execute(sql, (date_stamp,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
751
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
752 def sql_commit(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
753 ''' Actually commit to the database.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
754 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
755 self.conn.commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
756
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
757 def commit(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
758 ''' Commit the current transactions.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
759
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
760 Save all data changed since the database was opened or since the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
761 last commit() or rollback().
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
762 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
763 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
764 print >>hyperdb.DEBUG, 'commit', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
765
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
766 # commit the database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
767 self.sql_commit()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
768
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
769 # now, do all the other transaction stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
770 reindex = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
771 for method, args in self.transactions:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
772 reindex[method(*args)] = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
773
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
774 # reindex the nodes that request it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
775 for classname, nodeid in filter(None, reindex.keys()):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
776 print >>hyperdb.DEBUG, 'commit.reindex', (classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
777 self.getclass(classname).index(nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
778
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
779 # save the indexer state
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
780 self.indexer.save_index()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
781
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
782 # clear out the transactions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
783 self.transactions = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
784
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
785 def rollback(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
786 ''' Reverse all actions from the current transaction.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
787
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
788 Undo all the changes made since the database was opened or the last
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
789 commit() or rollback() was performed.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
790 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
791 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
792 print >>hyperdb.DEBUG, 'rollback', (self,)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
793
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
794 # roll back
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
795 self.conn.rollback()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
796
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
797 # roll back "other" transaction stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
798 for method, args in self.transactions:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
799 # delete temporary files
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
800 if method == self.doStoreFile:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
801 self.rollbackStoreFile(*args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
802 self.transactions = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
803
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
804 def doSaveNode(self, classname, nodeid, node):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
805 ''' dummy that just generates a reindex event
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
806 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
807 # return the classname, nodeid so we reindex this content
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
808 return (classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
809
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
810 def close(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
811 ''' Close off the connection.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
812 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
813 self.conn.close()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
814
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
815 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
816 # The base Class class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
817 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
818 class Class(hyperdb.Class):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
819 ''' The handle to a particular class of nodes in a hyperdatabase.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
820
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
821 All methods except __repr__ and getnode must be implemented by a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
822 concrete backend Class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
823 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
824
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
825 def __init__(self, db, classname, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
826 '''Create a new class with a given name and property specification.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
827
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
828 'classname' must not collide with the name of an existing class,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
829 or a ValueError is raised. The keyword arguments in 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
830 must map names to property objects, or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
831 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
832 if (properties.has_key('creation') or properties.has_key('activity')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
833 or properties.has_key('creator')):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
834 raise ValueError, '"creation", "activity" and "creator" are '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
835 'reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
836
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
837 self.classname = classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
838 self.properties = properties
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
839 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
840 self.key = ''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
841
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
842 # should we journal changes (default yes)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
843 self.do_journal = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
844
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
845 # do the db-related init stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
846 db.addclass(self)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
847
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
848 self.auditors = {'create': [], 'set': [], 'retire': []}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
849 self.reactors = {'create': [], 'set': [], 'retire': []}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
850
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
851 def schema(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
852 ''' A dumpable version of the schema that we can store in the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
853 database
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
854 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
855 return (self.key, [(x, repr(y)) for x,y in self.properties.items()])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
856
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
857 def enableJournalling(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
858 '''Turn journalling on for this class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
859 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
860 self.do_journal = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
861
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
862 def disableJournalling(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
863 '''Turn journalling off for this class
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
864 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
865 self.do_journal = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
866
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
867 # Editing nodes:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
868 def create(self, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
869 ''' Create a new node of this class and return its id.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
870
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
871 The keyword arguments in 'propvalues' map property names to values.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
872
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
873 The values of arguments must be acceptable for the types of their
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
874 corresponding properties or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
875
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
876 If this class has a key property, it must be present and its value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
877 must not collide with other key strings or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
878
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
879 Any other properties on this class that are missing from the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
880 'propvalues' dictionary are set to None.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
881
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
882 If an id in a link or multilink property does not refer to a valid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
883 node, an IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
884 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
885 if propvalues.has_key('id'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
886 raise KeyError, '"id" is reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
887
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
888 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
889 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
890
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
891 if propvalues.has_key('creation') or propvalues.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
892 raise KeyError, '"creation" and "activity" are reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
893
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
894 self.fireAuditors('create', None, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
895
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
896 # new node's id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
897 newid = self.db.newid(self.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
898
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
899 # validate propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
900 num_re = re.compile('^\d+$')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
901 for key, value in propvalues.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
902 if key == self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
903 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
904 self.lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
905 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
906 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
907 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
908 raise ValueError, 'node with key "%s" exists'%value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
909
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
910 # try to handle this property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
911 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
912 prop = self.properties[key]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
913 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
914 raise KeyError, '"%s" has no property "%s"'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
915 key)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
916
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
917 if value is not None and isinstance(prop, Link):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
918 if type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
919 raise ValueError, 'link value must be String'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
920 link_class = self.properties[key].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
921 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
922 if not num_re.match(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
923 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
924 value = self.db.classes[link_class].lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
925 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
926 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
927 key, value, link_class)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
928 elif not self.db.getclass(link_class).hasnode(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
929 raise IndexError, '%s has no node %s'%(link_class, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
930
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
931 # save off the value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
932 propvalues[key] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
933
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
934 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
935 if self.do_journal and self.properties[key].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
936 self.db.addjournal(link_class, value, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
937 (self.classname, newid, key))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
938
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
939 elif isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
940 if type(value) != type([]):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
941 raise TypeError, 'new property "%s" not a list of ids'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
942
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
943 # clean up and validate the list of links
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
944 link_class = self.properties[key].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
945 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
946 for entry in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
947 if type(entry) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
948 raise ValueError, '"%s" multilink value (%r) '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
949 'must contain Strings'%(key, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
950 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
951 if not num_re.match(entry):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
952 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
953 entry = self.db.classes[link_class].lookup(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
954 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
955 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
956 key, entry, self.properties[key].classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
957 l.append(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
958 value = l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
959 propvalues[key] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
960
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
961 # handle additions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
962 for nodeid in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
963 if not self.db.getclass(link_class).hasnode(nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
964 raise IndexError, '%s has no node %s'%(link_class,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
965 nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
966 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
967 if self.do_journal and self.properties[key].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
968 self.db.addjournal(link_class, nodeid, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
969 (self.classname, newid, key))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
970
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
971 elif isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
972 if type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
973 raise TypeError, 'new property "%s" not a string'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
974
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
975 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
976 if not isinstance(value, password.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
977 raise TypeError, 'new property "%s" not a Password'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
978
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
979 elif isinstance(prop, Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
980 if value is not None and not isinstance(value, date.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
981 raise TypeError, 'new property "%s" not a Date'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
982
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
983 elif isinstance(prop, Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
984 if value is not None and not isinstance(value, date.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
985 raise TypeError, 'new property "%s" not an Interval'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
986
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
987 elif value is not None and isinstance(prop, Number):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
988 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
989 float(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
990 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
991 raise TypeError, 'new property "%s" not numeric'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
992
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
993 elif value is not None and isinstance(prop, Boolean):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
994 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
995 int(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
996 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
997 raise TypeError, 'new property "%s" not boolean'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
998
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
999 # make sure there's data where there needs to be
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1000 for key, prop in self.properties.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1001 if propvalues.has_key(key):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1002 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1003 if key == self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1004 raise ValueError, 'key property "%s" is required'%key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1005 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1006 propvalues[key] = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1007 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1008 propvalues[key] = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1009
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1010 # done
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1011 self.db.addnode(self.classname, newid, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1012 if self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1013 self.db.addjournal(self.classname, newid, 'create', propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1014
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1015 self.fireReactors('create', newid, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1016
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1017 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1018
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1019 def export_list(self, propnames, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1020 ''' Export a node - generate a list of CSV-able data in the order
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1021 specified by propnames for the given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1022 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1023 properties = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1024 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1025 for prop in propnames:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1026 proptype = properties[prop]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1027 value = self.get(nodeid, prop)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1028 # "marshal" data where needed
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1029 if value is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1030 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1031 elif isinstance(proptype, hyperdb.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1032 value = value.get_tuple()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1033 elif isinstance(proptype, hyperdb.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1034 value = value.get_tuple()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1035 elif isinstance(proptype, hyperdb.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1036 value = str(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1037 l.append(repr(value))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1038 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1039
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1040 def import_list(self, propnames, proplist):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1041 ''' Import a node - all information including "id" is present and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1042 should not be sanity checked. Triggers are not triggered. The
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1043 journal should be initialised using the "creator" and "created"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1044 information.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1045
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1046 Return the nodeid of the node imported.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1047 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1048 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1049 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1050 properties = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1051
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1052 # make the new node's property map
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1053 d = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1054 for i in range(len(propnames)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1055 # Use eval to reverse the repr() used to output the CSV
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1056 value = eval(proplist[i])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1057
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1058 # Figure the property for this column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1059 propname = propnames[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1060 prop = properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1061
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1062 # "unmarshal" where necessary
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1063 if propname == 'id':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1064 newid = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1065 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1066 elif value is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1067 # don't set Nones
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1068 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1069 elif isinstance(prop, hyperdb.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1070 value = date.Date(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1071 elif isinstance(prop, hyperdb.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1072 value = date.Interval(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1073 elif isinstance(prop, hyperdb.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1074 pwd = password.Password()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1075 pwd.unpack(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1076 value = pwd
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1077 d[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1078
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1079 # extract the extraneous journalling gumpf and nuke it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1080 if d.has_key('creator'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1081 creator = d['creator']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1082 del d['creator']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1083 if d.has_key('creation'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1084 creation = d['creation']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1085 del d['creation']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1086 if d.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1087 del d['activity']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1088
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1089 # add the node and journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1090 self.db.addnode(self.classname, newid, d)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1091 self.db.addjournal(self.classname, newid, 'create', d, creator,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1092 creation)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1093 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1094
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1095 _marker = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1096 def get(self, nodeid, propname, default=_marker, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1097 '''Get the value of a property on an existing node of this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1098
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1099 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1100 IndexError is raised. 'propname' must be the name of a property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1101 of this class or a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1102
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1103 'cache' indicates whether the transaction cache should be queried
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1104 for the node. If the node has been modified and you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1105 determine what its values prior to modification are, you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1106 set cache=0.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1107 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1108 if propname == 'id':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1109 return nodeid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1110
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1111 if propname == 'creation':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1112 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1113 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1114 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1115 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1116 return self.db.getjournal(self.classname, nodeid)[0][1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1117 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1118 # on the strange chance that there's no journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1119 return date.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1120 if propname == 'activity':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1121 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1122 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1123 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1124 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1125 return self.db.getjournal(self.classname, nodeid)[-1][1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1126 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1127 # on the strange chance that there's no journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1128 return date.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1129 if propname == 'creator':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1130 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1131 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1132 journal = self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1133 if journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1134 name = self.db.getjournal(self.classname, nodeid)[0][2]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1135 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1136 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1137 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1138 return self.db.user.lookup(name)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1139 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1140 # the journaltag user doesn't exist any more
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1141 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1142
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1143 # get the property (raises KeyErorr if invalid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1144 prop = self.properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1145
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1146 # get the node's dict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1147 d = self.db.getnode(self.classname, nodeid) #, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1148
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1149 if not d.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1150 if default is self._marker:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1151 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1152 return []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1153 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1154 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1155 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1156 return default
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1157
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1158 # don't pass our list to other code
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1159 if isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1160 return d[propname][:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1161
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1162 return d[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1163
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1164 def getnode(self, nodeid, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1165 ''' Return a convenience wrapper for the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1166
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1167 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1168 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1169
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1170 'cache' indicates whether the transaction cache should be queried
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1171 for the node. If the node has been modified and you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1172 determine what its values prior to modification are, you need to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1173 set cache=0.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1174 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1175 return Node(self, nodeid, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1176
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1177 def set(self, nodeid, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1178 '''Modify a property on an existing node of this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1179
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1180 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1181 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1182
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1183 Each key in 'propvalues' must be the name of a property of this
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1184 class or a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1185
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1186 All values in 'propvalues' must be acceptable types for their
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1187 corresponding properties or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1188
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1189 If the value of the key property is set, it must not collide with
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1190 other key strings or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1191
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1192 If the value of a Link or Multilink property contains an invalid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1193 node id, a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1194 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1195 if not propvalues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1196 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1197
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1198 if propvalues.has_key('creation') or propvalues.has_key('activity'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1199 raise KeyError, '"creation" and "activity" are reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1200
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1201 if propvalues.has_key('id'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1202 raise KeyError, '"id" is reserved'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1203
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1204 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1205 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1206
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1207 self.fireAuditors('set', nodeid, propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1208 # Take a copy of the node dict so that the subsequent set
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1209 # operation doesn't modify the oldvalues structure.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1210 # XXX used to try the cache here first
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1211 oldvalues = copy.deepcopy(self.db.getnode(self.classname, nodeid))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1212
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1213 node = self.db.getnode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1214 if self.is_retired(nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1215 raise IndexError, 'Requested item is retired'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1216 num_re = re.compile('^\d+$')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1217
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1218 # if the journal value is to be different, store it in here
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1219 journalvalues = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1220
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1221 # remember the add/remove stuff for multilinks, making it easier
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1222 # for the Database layer to do its stuff
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1223 multilink_changes = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1224
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1225 for propname, value in propvalues.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1226 # check to make sure we're not duplicating an existing key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1227 if propname == self.key and node[propname] != value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1228 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1229 self.lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1230 except KeyError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1231 pass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1232 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1233 raise ValueError, 'node with key "%s" exists'%value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1234
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1235 # this will raise the KeyError if the property isn't valid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1236 # ... we don't use getprops() here because we only care about
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1237 # the writeable properties.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1238 prop = self.properties[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1239
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1240 # if the value's the same as the existing value, no sense in
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1241 # doing anything
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1242 if node.has_key(propname) and value == node[propname]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1243 del propvalues[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1244 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1245
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1246 # do stuff based on the prop type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1247 if isinstance(prop, Link):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1248 link_class = prop.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1249 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1250 if value is not None and not isinstance(value, type('')):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1251 raise ValueError, 'property "%s" link value be a string'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1252 propname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1253 if isinstance(value, type('')) and not num_re.match(value):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1254 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1255 value = self.db.classes[link_class].lookup(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1256 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1257 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1258 propname, value, prop.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1259
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1260 if (value is not None and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1261 not self.db.getclass(link_class).hasnode(value)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1262 raise IndexError, '%s has no node %s'%(link_class, value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1263
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1264 if self.do_journal and prop.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1265 # register the unlink with the old linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1266 if node[propname] is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1267 self.db.addjournal(link_class, node[propname], 'unlink',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1268 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1269
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1270 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1271 if value is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1272 self.db.addjournal(link_class, value, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1273 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1274
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1275 elif isinstance(prop, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1276 if type(value) != type([]):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1277 raise TypeError, 'new property "%s" not a list of'\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1278 ' ids'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1279 link_class = self.properties[propname].classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1280 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1281 for entry in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1282 # if it isn't a number, it's a key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1283 if type(entry) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1284 raise ValueError, 'new property "%s" link value ' \
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1285 'must be a string'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1286 if not num_re.match(entry):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1287 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1288 entry = self.db.classes[link_class].lookup(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1289 except (TypeError, KeyError):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1290 raise IndexError, 'new property "%s": %s not a %s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1291 propname, entry,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1292 self.properties[propname].classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1293 l.append(entry)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1294 value = l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1295 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1296
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1297 # figure the journal entry for this property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1298 add = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1299 remove = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1300
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1301 # handle removals
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1302 if node.has_key(propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1303 l = node[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1304 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1305 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1306 for id in l[:]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1307 if id in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1308 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1309 # register the unlink with the old linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1310 if self.do_journal and self.properties[propname].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1311 self.db.addjournal(link_class, id, 'unlink',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1312 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1313 l.remove(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1314 remove.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1315
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1316 # handle additions
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1317 for id in value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1318 if not self.db.getclass(link_class).hasnode(id):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1319 raise IndexError, '%s has no node %s'%(link_class, id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1320 if id in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1321 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1322 # register the link with the newly linked node
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1323 if self.do_journal and self.properties[propname].do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1324 self.db.addjournal(link_class, id, 'link',
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1325 (self.classname, nodeid, propname))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1326 l.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1327 add.append(id)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1328
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1329 # figure the journal entry
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1330 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1331 if add:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1332 l.append(('+', add))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1333 if remove:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1334 l.append(('-', remove))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1335 multilink_changes[propname] = (add, remove)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1336 if l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1337 journalvalues[propname] = tuple(l)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1338
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1339 elif isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1340 if value is not None and type(value) != type(''):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1341 raise TypeError, 'new property "%s" not a string'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1342
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1343 elif isinstance(prop, Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1344 if not isinstance(value, password.Password):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1345 raise TypeError, 'new property "%s" not a Password'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1346 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1347
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1348 elif value is not None and isinstance(prop, Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1349 if not isinstance(value, date.Date):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1350 raise TypeError, 'new property "%s" not a Date'% propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1351 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1352
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1353 elif value is not None and isinstance(prop, Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1354 if not isinstance(value, date.Interval):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1355 raise TypeError, 'new property "%s" not an '\
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1356 'Interval'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1357 propvalues[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1358
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1359 elif value is not None and isinstance(prop, Number):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1360 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1361 float(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1362 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1363 raise TypeError, 'new property "%s" not numeric'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1364
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1365 elif value is not None and isinstance(prop, Boolean):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1366 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1367 int(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1368 except ValueError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1369 raise TypeError, 'new property "%s" not boolean'%propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1370
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1371 node[propname] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1372
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1373 # nothing to do?
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1374 if not propvalues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1375 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1376
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1377 # do the set, and journal it
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1378 self.db.setnode(self.classname, nodeid, node, multilink_changes)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1379
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1380 if self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1381 propvalues.update(journalvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1382 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1383
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1384 self.fireReactors('set', nodeid, oldvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1385
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1386 return propvalues
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1387
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1388 def retire(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1389 '''Retire a node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1390
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1391 The properties on the node remain available from the get() method,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1392 and the node's id is never reused.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1393
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1394 Retired nodes are not returned by the find(), list(), or lookup()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1395 methods, and other nodes may reuse the values of their key properties.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1396 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1397 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1398 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1399
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1400 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1401 sql = 'update _%s set __retired__=1 where id=%s'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1402 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1403 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1404 print >>hyperdb.DEBUG, 'retire', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1405 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1406
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1407 def is_retired(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1408 '''Return true if the node is rerired
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1409 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1410 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1411 sql = 'select __retired__ from _%s where id=%s'%(self.classname,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1412 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1413 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1414 print >>hyperdb.DEBUG, 'is_retired', (self, sql, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1415 cursor.execute(sql, (nodeid,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1416 return int(cursor.fetchone()[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1417
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1418 def destroy(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1419 '''Destroy a node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1420
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1421 WARNING: this method should never be used except in extremely rare
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1422 situations where there could never be links to the node being
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1423 deleted
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1424 WARNING: use retire() instead
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1425 WARNING: the properties of this node will not be available ever again
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1426 WARNING: really, use retire() instead
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1427
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1428 Well, I think that's enough warnings. This method exists mostly to
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1429 support the session storage of the cgi interface.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1430
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1431 The node is completely removed from the hyperdb, including all journal
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1432 entries. It will no longer be available, and will generally break code
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1433 if there are any references to the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1434 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1435 if self.db.journaltag is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1436 raise DatabaseError, 'Database open read-only'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1437 self.db.destroynode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1438
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1439 def history(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1440 '''Retrieve the journal of edits on a particular node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1441
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1442 'nodeid' must be the id of an existing node of this class or an
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1443 IndexError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1444
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1445 The returned list contains tuples of the form
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1446
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1447 (date, tag, action, params)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1448
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1449 'date' is a Timestamp object specifying the time of the change and
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1450 'tag' is the journaltag specified when the database was opened.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1451 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1452 if not self.do_journal:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1453 raise ValueError, 'Journalling is disabled for this class'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1454 return self.db.getjournal(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1455
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1456 # Locating nodes:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1457 def hasnode(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1458 '''Determine if the given nodeid actually exists
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1459 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1460 return self.db.hasnode(self.classname, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1461
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1462 def setkey(self, propname):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1463 '''Select a String property of this class to be the key property.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1464
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1465 'propname' must be the name of a String property of this class or
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1466 None, or a TypeError is raised. The values of the key property on
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1467 all existing nodes must be unique or a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1468 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1469 # XXX create an index on the key prop column
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1470 prop = self.getprops()[propname]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1471 if not isinstance(prop, String):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1472 raise TypeError, 'key properties must be String'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1473 self.key = propname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1474
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1475 def getkey(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1476 '''Return the name of the key property for this class or None.'''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1477 return self.key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1478
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1479 def labelprop(self, default_to_id=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1480 ''' Return the property name for a label for the given node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1481
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1482 This method attempts to generate a consistent label for the node.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1483 It tries the following in order:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1484 1. key property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1485 2. "name" property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1486 3. "title" property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1487 4. first property from the sorted property name list
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1488 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1489 k = self.getkey()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1490 if k:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1491 return k
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1492 props = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1493 if props.has_key('name'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1494 return 'name'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1495 elif props.has_key('title'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1496 return 'title'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1497 if default_to_id:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1498 return 'id'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1499 props = props.keys()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1500 props.sort()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1501 return props[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1502
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1503 def lookup(self, keyvalue):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1504 '''Locate a particular node by its key property and return its id.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1505
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1506 If this class has no key property, a TypeError is raised. If the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1507 'keyvalue' matches one of the values for the key property among
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1508 the nodes in this class, the matching node's id is returned;
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1509 otherwise a KeyError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1510 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1511 if not self.key:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1512 raise TypeError, 'No key property set for class %s'%self.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1513
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1514 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1515 sql = 'select id from _%s where _%s=%s'%(self.classname, self.key,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1516 self.db.arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1517 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1518 print >>hyperdb.DEBUG, 'lookup', (self, sql, keyvalue)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1519 cursor.execute(sql, (keyvalue,))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1520
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1521 # see if there was a result
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1522 l = cursor.fetchall()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1523 if not l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1524 raise KeyError, keyvalue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1525
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1526 # return the id
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1527 return l[0][0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1528
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1529 def find(self, **propspec):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1530 '''Get the ids of nodes in this class which link to the given nodes.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1531
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1532 'propspec' consists of keyword args propname={nodeid:1,}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1533 'propname' must be the name of a property in this class, or a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1534 KeyError is raised. That property must be a Link or Multilink
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1535 property, or a TypeError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1536
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1537 Any node in this class whose 'propname' property links to any of the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1538 nodeids will be returned. Used by the full text indexing, which knows
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1539 that "foo" occurs in msg1, msg3 and file7, so we have hits on these
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1540 issues:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1541
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1542 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1543 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1544 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1545 print >>hyperdb.DEBUG, 'find', (self, propspec)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1546 if not propspec:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1547 return []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1548 queries = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1549 tables = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1550 allvalues = ()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1551 for prop, values in propspec.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1552 allvalues += tuple(values.keys())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1553 a = self.db.arg
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1554 tables.append('select nodeid from %s_%s where linkid in (%s)'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1555 self.classname, prop, ','.join([a for x in values.keys()])))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1556 sql = '\nintersect\n'.join(tables)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1557 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1558 print >>hyperdb.DEBUG, 'find', (self, sql, allvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1559 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1560 cursor.execute(sql, allvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1561 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1562 l = [x[0] for x in cursor.fetchall()]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1563 except gadfly.database.error, message:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1564 if message == 'no more results':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1565 l = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1566 raise
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1567 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1568 print >>hyperdb.DEBUG, 'find ... ', l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1569 return l
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1570
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1571 def list(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1572 ''' Return a list of the ids of the active nodes in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1573 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1574 return self.db.getnodeids(self.classname, retired=0)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1575
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1576 def filter(self, search_matches, filterspec, sort, group):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1577 ''' Return a list of the ids of the active nodes in this class that
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1578 match the 'filter' spec, sorted by the group spec and then the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1579 sort spec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1580
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1581 "filterspec" is {propname: value(s)}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1582 "sort" and "group" are (dir, prop) where dir is '+', '-' or None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1583 and prop is a prop name or None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1584 "search_matches" is {nodeid: marker}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1585 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1586 cn = self.classname
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1587
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1588 # figure the WHERE clause from the filterspec
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1589 props = self.getprops()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1590 frum = ['_'+cn]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1591 where = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1592 args = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1593 for k, v in filterspec.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1594 propclass = props[k]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1595 if isinstance(propclass, Multilink):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1596 tn = '%s_%s'%(cn, k)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1597 frum.append(tn)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1598 if isinstance(v, type([])):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1599 s = ','.join([self.arg for x in v])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1600 where.append('id=%s.nodeid and %s.linkid in (%s)'%(tn,tn,s))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1601 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1602 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1603 where.append('id=%s.nodeid and %s.linkid = %s'%(tn, tn,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1604 self.arg))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1605 args.append(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1606 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1607 if isinstance(v, type([])):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1608 s = ','.join([self.arg for x in v])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1609 where.append('_%s in (%s)'%(k, s))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1610 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1611 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1612 where.append('_%s=%s'%(k, self.arg))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1613 args.append(v)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1614
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1615 # add results of full text search
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1616 if search_matches is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1617 v = search_matches.keys()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1618 s = ','.join([self.arg for x in v])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1619 where.append('id in (%s)'%s)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1620 args = args + v
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1621
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1622 # figure the order by clause
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1623 orderby = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1624 ordercols = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1625 if sort[0] is not None and sort[1] is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1626 if sort[0] != '-':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1627 orderby.append('_'+sort[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1628 ordercols.append(sort[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1629 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1630 orderby.append('_'+sort[1]+' desc')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1631 ordercols.append(sort[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1632
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1633 # figure the group by clause
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1634 groupby = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1635 groupcols = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1636 if group[0] is not None and group[1] is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1637 if group[0] != '-':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1638 groupby.append('_'+group[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1639 groupcols.append(group[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1640 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1641 groupby.append('_'+group[1]+' desc')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1642 groupcols.append(group[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1643
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1644 # construct the SQL
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1645 frum = ','.join(frum)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1646 where = ' and '.join(where)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1647 cols = ['id']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1648 if orderby:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1649 cols = cols + ordercols
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1650 order = ' order by %s'%(','.join(orderby))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1651 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1652 order = ''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1653 if groupby:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1654 cols = cols + groupcols
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1655 group = ' group by %s'%(','.join(groupby))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1656 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1657 group = ''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1658 cols = ','.join(cols)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1659 sql = 'select %s from %s where %s%s%s'%(cols, frum, where, order,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1660 group)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1661 args = tuple(args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1662 if __debug__:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1663 print >>hyperdb.DEBUG, 'find', (self, sql, args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1664 cursor = self.db.conn.cursor()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1665 cursor.execute(sql, args)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1666
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1667 def count(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1668 '''Get the number of nodes in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1669
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1670 If the returned integer is 'numnodes', the ids of all the nodes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1671 in this class run from 1 to numnodes, and numnodes+1 will be the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1672 id of the next node to be created in this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1673 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1674 return self.db.countnodes(self.classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1675
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1676 # Manipulating properties:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1677 def getprops(self, protected=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1678 '''Return a dictionary mapping property names to property objects.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1679 If the "protected" flag is true, we include protected properties -
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1680 those which may not be modified.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1681 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1682 d = self.properties.copy()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1683 if protected:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1684 d['id'] = String()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1685 d['creation'] = hyperdb.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1686 d['activity'] = hyperdb.Date()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1687 d['creator'] = hyperdb.Link("user")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1688 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1689
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1690 def addprop(self, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1691 '''Add properties to this class.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1692
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1693 The keyword arguments in 'properties' must map names to property
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1694 objects, or a TypeError is raised. None of the keys in 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1695 may collide with the names of existing properties, or a ValueError
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1696 is raised before any properties have been added.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1697 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1698 for key in properties.keys():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1699 if self.properties.has_key(key):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1700 raise ValueError, key
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1701 self.properties.update(properties)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1702
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1703 def index(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1704 '''Add (or refresh) the node to search indexes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1705 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1706 # find all the String properties that have indexme
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1707 for prop, propclass in self.getprops().items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1708 if isinstance(propclass, String) and propclass.indexme:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1709 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1710 value = str(self.get(nodeid, prop))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1711 except IndexError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1712 # node no longer exists - entry should be removed
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1713 self.db.indexer.purge_entry((self.classname, nodeid, prop))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1714 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1715 # and index them under (classname, nodeid, property)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1716 self.db.indexer.add_text((self.classname, nodeid, prop),
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1717 value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1718
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1719
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1720 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1721 # Detector interface
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1722 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1723 def audit(self, event, detector):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1724 '''Register a detector
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1725 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1726 l = self.auditors[event]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1727 if detector not in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1728 self.auditors[event].append(detector)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1729
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1730 def fireAuditors(self, action, nodeid, newvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1731 '''Fire all registered auditors.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1732 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1733 for audit in self.auditors[action]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1734 audit(self.db, self, nodeid, newvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1735
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1736 def react(self, event, detector):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1737 '''Register a detector
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1738 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1739 l = self.reactors[event]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1740 if detector not in l:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1741 self.reactors[event].append(detector)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1742
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1743 def fireReactors(self, action, nodeid, oldvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1744 '''Fire all registered reactors.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1745 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1746 for react in self.reactors[action]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1747 react(self.db, self, nodeid, oldvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1748
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1749 class FileClass(Class):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1750 '''This class defines a large chunk of data. To support this, it has a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1751 mandatory String property "content" which is typically saved off
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1752 externally to the hyperdb.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1753
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1754 The default MIME type of this data is defined by the
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1755 "default_mime_type" class attribute, which may be overridden by each
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1756 node if the class defines a "type" String property.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1757 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1758 default_mime_type = 'text/plain'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1759
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1760 def create(self, **propvalues):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1761 ''' snaffle the file propvalue and store in a file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1762 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1763 content = propvalues['content']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1764 del propvalues['content']
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1765 newid = Class.create(self, **propvalues)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1766 self.db.storefile(self.classname, newid, None, content)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1767 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1768
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1769 def import_list(self, propnames, proplist):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1770 ''' Trap the "content" property...
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1771 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1772 # dupe this list so we don't affect others
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1773 propnames = propnames[:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1774
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1775 # extract the "content" property from the proplist
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1776 i = propnames.index('content')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1777 content = eval(proplist[i])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1778 del propnames[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1779 del proplist[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1780
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1781 # do the normal import
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1782 newid = Class.import_list(self, propnames, proplist)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1783
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1784 # save off the "content" file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1785 self.db.storefile(self.classname, newid, None, content)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1786 return newid
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1787
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1788 _marker = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1789 def get(self, nodeid, propname, default=_marker, cache=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1790 ''' trap the content propname and get it from the file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1791 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1792
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1793 poss_msg = 'Possibly a access right configuration problem.'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1794 if propname == 'content':
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1795 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1796 return self.db.getfile(self.classname, nodeid, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1797 except IOError, (strerror):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1798 # BUG: by catching this we donot see an error in the log.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1799 return 'ERROR reading file: %s%s\n%s\n%s'%(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1800 self.classname, nodeid, poss_msg, strerror)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1801 if default is not self._marker:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1802 return Class.get(self, nodeid, propname, default, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1803 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1804 return Class.get(self, nodeid, propname, cache=cache)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1805
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1806 def getprops(self, protected=1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1807 ''' In addition to the actual properties on the node, these methods
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1808 provide the "content" property. If the "protected" flag is true,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1809 we include protected properties - those which may not be
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1810 modified.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1811 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1812 d = Class.getprops(self, protected=protected).copy()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1813 d['content'] = hyperdb.String()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1814 return d
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1815
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1816 def index(self, nodeid):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1817 ''' Index the node in the search index.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1818
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1819 We want to index the content in addition to the normal String
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1820 property indexing.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1821 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1822 # perform normal indexing
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1823 Class.index(self, nodeid)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1824
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1825 # get the content to index
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1826 content = self.get(nodeid, 'content')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1827
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1828 # figure the mime type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1829 if self.properties.has_key('type'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1830 mime_type = self.get(nodeid, 'type')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1831 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1832 mime_type = self.default_mime_type
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1833
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1834 # and index!
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1835 self.db.indexer.add_text((self.classname, nodeid, 'content'), content,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1836 mime_type)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1837
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1838 # XXX deviation from spec - was called ItemClass
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1839 class IssueClass(Class, roundupdb.IssueClass):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1840 # Overridden methods:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1841 def __init__(self, db, classname, **properties):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1842 '''The newly-created class automatically includes the "messages",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1843 "files", "nosy", and "superseder" properties. If the 'properties'
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1844 dictionary attempts to specify any of these properties or a
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1845 "creation" or "activity" property, a ValueError is raised.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1846 '''
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1847 if not properties.has_key('title'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1848 properties['title'] = hyperdb.String(indexme='yes')
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1849 if not properties.has_key('messages'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1850 properties['messages'] = hyperdb.Multilink("msg")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1851 if not properties.has_key('files'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1852 properties['files'] = hyperdb.Multilink("file")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1853 if not properties.has_key('nosy'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1854 # note: journalling is turned off as it really just wastes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1855 # space. this behaviour may be overridden in an instance
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1856 properties['nosy'] = hyperdb.Multilink("user", do_journal="no")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1857 if not properties.has_key('superseder'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1858 properties['superseder'] = hyperdb.Multilink(classname)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1859 Class.__init__(self, db, classname, **properties)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1860
|
