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annotate roundup/backends/back_sqlite.py @ 2623:4e1030d49cea

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fix: Option defaults were applied as strings... ...not converted to internal representation; add Option methods str2value and value2str for value conversion from and to the strings kept in .ini file; options MAIL_USERNAME, MAIL_TLS_KEYFILE and MAIL_TLS_CERTFILE default to empty strings: NODEFAULT value is a configuration error, and for these options it is ok to keep them unset.
author Alexander Smishlajev <a1s@users.sourceforge.net>
date Sun, 25 Jul 2004 14:36:50 +0000
parents 091711fb2f8c
children a9e1fff1e793
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # $Id: back_sqlite.py,v 1.30 2004-07-02 05:22:09 richard Exp $
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2 '''Implements a backend for SQLite.
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3
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4 See https://pysqlite.sourceforge.net/ for pysqlite info
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5
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6
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7 NOTE: we use the rdbms_common table creation methods which define datatypes
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8 for the columns, but sqlite IGNORES these specifications.
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9 '''
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10 __docformat__ = 'restructuredtext'
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11
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12 import os, base64, marshal
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13
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14 from roundup import hyperdb, date, password
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15 from roundup.backends import locking
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16 from roundup.backends import rdbms_common
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17 import sqlite
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18
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19 class Database(rdbms_common.Database):
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20 # char to use for positional arguments
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21 arg = '%s'
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22 hyperdb_to_sql_datatypes = {
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23 hyperdb.String : 'VARCHAR(255)',
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24 hyperdb.Date : 'VARCHAR(30)',
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25 hyperdb.Link : 'INTEGER',
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26 hyperdb.Interval : 'VARCHAR(255)',
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27 hyperdb.Password : 'VARCHAR(255)',
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28 hyperdb.Boolean : 'BOOLEAN',
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29 hyperdb.Number : 'REAL',
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30 }
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31 hyperdb_to_sql_value = {
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32 hyperdb.String : str,
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33 hyperdb.Date : lambda x: x.serialise(),
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34 hyperdb.Link : int,
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35 hyperdb.Interval : str,
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36 hyperdb.Password : str,
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37 hyperdb.Boolean : int,
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38 hyperdb.Number : lambda x: x,
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39 hyperdb.Multilink : lambda x: x, # used in journal marshalling
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40 }
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41 sql_to_hyperdb_value = {
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42 hyperdb.String : str,
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43 hyperdb.Date : lambda x: date.Date(str(x)),
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44 hyperdb.Link : str, # XXX numeric ids
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45 hyperdb.Interval : date.Interval,
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46 hyperdb.Password : lambda x: password.Password(encrypted=x),
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47 hyperdb.Boolean : int,
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48 hyperdb.Number : rdbms_common._num_cvt,
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49 hyperdb.Multilink : lambda x: x, # used in journal marshalling
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50 }
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51
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52 def sql_open_connection(self):
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53 '''Open a standard, non-autocommitting connection.
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54
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55 pysqlite will automatically BEGIN TRANSACTION for us.
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56 '''
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57 db = os.path.join(self.config.DATABASE, 'db')
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58 self.config.logging.getLogger('hyperdb').info('open database %r'%db)
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59 conn = sqlite.connect(db=db)
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60 # set a 30 second timeout (extraordinarily generous) for handling
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61 # locked database
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62 conn.db.sqlite_busy_timeout(30 * 1000)
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63 cursor = conn.cursor()
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64 return (conn, cursor)
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66 def open_connection(self):
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67 # ensure files are group readable and writable
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68 os.umask(0002)
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69
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70 (self.conn, self.cursor) = self.sql_open_connection()
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71
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72 try:
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73 self.load_dbschema()
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74 except sqlite.DatabaseError, error:
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75 if str(error) != 'no such table: schema':
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76 raise
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77 self.init_dbschema()
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78 self.sql('create table schema (schema varchar)')
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79 self.sql('create table ids (name varchar, num integer)')
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80 self.sql('create index ids_name_idx on ids(name)')
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81 self.create_version_2_tables()
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82
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83 def create_version_2_tables(self):
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84 self.sql('create table otks (otk_key varchar, '
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85 'otk_value varchar, otk_time integer)')
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86 self.sql('create index otks_key_idx on otks(otk_key)')
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87 self.sql('create table sessions (session_key varchar, '
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88 'session_time integer, session_value varchar)')
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89 self.sql('create index sessions_key_idx on '
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90 'sessions(session_key)')
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91
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92 # full-text indexing store
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93 self.sql('CREATE TABLE __textids (_class varchar, '
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94 '_itemid varchar, _prop varchar, _textid integer primary key) ')
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95 self.sql('CREATE TABLE __words (_word varchar, '
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96 '_textid integer)')
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97 self.sql('CREATE INDEX words_word_ids ON __words(_word)')
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98 sql = 'insert into ids (name, num) values (%s,%s)'%(self.arg, self.arg)
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99 self.sql(sql, ('__textids', 1))
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100
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101 def add_new_columns_v2(self):
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102 # update existing tables to have the new actor column
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103 tables = self.database_schema['tables']
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104 for classname, spec in self.classes.items():
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105 if tables.has_key(classname):
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106 dbspec = tables[classname]
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107 self.update_class(spec, dbspec, force=1, adding_v2=1)
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108 # we've updated - don't try again
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109 tables[classname] = spec.schema()
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110
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111 def update_class(self, spec, old_spec, force=0, adding_v2=0):
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112 ''' Determine the differences between the current spec and the
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113 database version of the spec, and update where necessary.
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114
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115 If 'force' is true, update the database anyway.
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116
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117 SQLite doesn't have ALTER TABLE, so we have to copy and
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118 regenerate the tables with the new schema.
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119 '''
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120 new_has = spec.properties.has_key
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121 new_spec = spec.schema()
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122 new_spec[1].sort()
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123 old_spec[1].sort()
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124 if not force and new_spec == old_spec:
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125 # no changes
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126 return 0
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127
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128 self.config.logging.getLogger('hyperdb').info('update_class %s'%spec.classname)
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129
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130 # detect multilinks that have been removed, and drop their table
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131 old_has = {}
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132 for name, prop in old_spec[1]:
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133 old_has[name] = 1
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diff changeset
134 if new_has(name) or not isinstance(prop, hyperdb.Multilink):
3e0961d6d44d Added the "actor" property.
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diff changeset
135 continue
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diff changeset
136 # it's a multilink, and it's been removed - drop the old
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diff changeset
137 # table. First drop indexes.
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diff changeset
138 self.drop_multilink_table_indexes(spec.classname, ml)
3e0961d6d44d Added the "actor" property.
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diff changeset
139 sql = 'drop table %s_%s'%(spec.classname, prop)
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diff changeset
140 self.sql(sql)
2077
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diff changeset
141 old_has = old_has.has_key
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diff changeset
142
3e0961d6d44d Added the "actor" property.
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diff changeset
143 # now figure how we populate the new table
2217
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diff changeset
144 if adding_v2:
2077
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diff changeset
145 fetch = ['_activity', '_creation', '_creator']
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diff changeset
146 else:
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diff changeset
147 fetch = ['_actor', '_activity', '_creation', '_creator']
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diff changeset
148 properties = spec.getprops()
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diff changeset
149 for propname,x in new_spec[1]:
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diff changeset
150 prop = properties[propname]
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diff changeset
151 if isinstance(prop, hyperdb.Multilink):
2137
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diff changeset
152 if not old_has(propname):
2077
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diff changeset
153 # we need to create the new table
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diff changeset
154 self.create_multilink_table(spec, propname)
2137
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diff changeset
155 elif force:
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diff changeset
156 tn = '%s_%s'%(spec.classname, propname)
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diff changeset
157 # grabe the current values
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diff changeset
158 sql = 'select linkid, nodeid from %s'%tn
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diff changeset
159 self.sql(sql)
2137
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diff changeset
160 rows = self.cursor.fetchall()
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diff changeset
161
c49495585c44 Fix for sqlite backend migration. Change Cookie -> SimpleCookie
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diff changeset
162 # drop the old table
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diff changeset
163 self.drop_multilink_table_indexes(spec.classname, propname)
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diff changeset
164 sql = 'drop table %s'%tn
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diff changeset
165 self.sql(sql)
2137
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diff changeset
166
c49495585c44 Fix for sqlite backend migration. Change Cookie -> SimpleCookie
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diff changeset
167 # re-create and populate the new table
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diff changeset
168 self.create_multilink_table(spec, propname)
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diff changeset
169 sql = '''insert into %s (linkid, nodeid) values
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diff changeset
170 (%s, %s)'''%(tn, self.arg, self.arg)
c49495585c44 Fix for sqlite backend migration. Change Cookie -> SimpleCookie
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diff changeset
171 for linkid, nodeid in rows:
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diff changeset
172 self.sql(sql, (int(linkid), int(nodeid)))
2077
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diff changeset
173 elif old_has(propname):
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diff changeset
174 # we copy this col over from the old table
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diff changeset
175 fetch.append('_'+propname)
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diff changeset
176
3e0961d6d44d Added the "actor" property.
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diff changeset
177 # select the data out of the old table
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diff changeset
178 fetch.append('id')
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diff changeset
179 fetch.append('__retired__')
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diff changeset
180 fetchcols = ','.join(fetch)
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diff changeset
181 cn = spec.classname
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diff changeset
182 sql = 'select %s from _%s'%(fetchcols, cn)
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diff changeset
183 self.sql(sql)
2077
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diff changeset
184 olddata = self.cursor.fetchall()
3e0961d6d44d Added the "actor" property.
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diff changeset
185
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
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diff changeset
186 # TODO: update all the other index dropping code
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diff changeset
187 self.drop_class_table_indexes(cn, old_spec[0])
3e0961d6d44d Added the "actor" property.
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diff changeset
188
3e0961d6d44d Added the "actor" property.
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diff changeset
189 # drop the old table
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diff changeset
190 self.sql('drop table _%s'%cn)
2077
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diff changeset
191
3e0961d6d44d Added the "actor" property.
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diff changeset
192 # create the new table
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diff changeset
193 self.create_class_table(spec)
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diff changeset
194
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
195 if olddata:
2273
c77483d2cda4 merge from maint-0-7
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diff changeset
196 inscols = ['id', '_actor', '_activity', '_creation', '_creator']
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
197 for propname,x in new_spec[1]:
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diff changeset
198 prop = properties[propname]
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
199 if isinstance(prop, hyperdb.Multilink):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
200 continue
98d3bf8ffb19 store Intervals as two columns (and other fixes
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parents: 2191
diff changeset
201 elif isinstance(prop, hyperdb.Interval):
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
202 inscols.append('_'+propname)
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
203 inscols.append('__'+propname+'_int__')
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
204 elif old_has(propname):
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diff changeset
205 # we copy this col over from the old table
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diff changeset
206 inscols.append('_'+propname)
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diff changeset
207
2077
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diff changeset
208 # do the insert of the old data - the new columns will have
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diff changeset
209 # NULL values
2217
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diff changeset
210 args = ','.join([self.arg for x in inscols])
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
211 cols = ','.join(inscols)
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
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diff changeset
212 sql = 'insert into _%s (%s) values (%s)'%(cn, cols, args)
2077
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
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diff changeset
213 for entry in olddata:
2217
98d3bf8ffb19 store Intervals as two columns (and other fixes
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diff changeset
214 d = []
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
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diff changeset
215 for name in inscols:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
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diff changeset
216 # generate the new value for the Interval int column
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
217 if name.endswith('_int__'):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
218 name = name[2:-6]
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
219 if entry.has_key(name):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
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diff changeset
220 v = hyperdb.Interval(entry[name]).as_seconds()
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
221 else:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
222 v = None
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
223 elif entry.has_key(name):
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
224 v = entry[name]
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
225 else:
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
parents: 2191
diff changeset
226 v = None
98d3bf8ffb19 store Intervals as two columns (and other fixes
Richard Jones <richard@users.sourceforge.net>
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diff changeset
227 d.append(v)
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diff changeset
228 self.sql(sql, tuple(d))
2077
3e0961d6d44d Added the "actor" property.
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diff changeset
229
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
230 return 1
3e0961d6d44d Added the "actor" property.
Richard Jones <richard@users.sourceforge.net>
parents: 2075
diff changeset
231
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
232 def sql_close(self):
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
233 ''' Squash any error caused by us already having closed the
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
234 connection.
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
235 '''
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
236 try:
2374
31cb1014300c Switch to using sqlite's own locking mechanisms...
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parents: 2273
diff changeset
237 self.conn.close()
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
238 except sqlite.ProgrammingError, value:
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
239 if str(value) != 'close failed - Connection is closed.':
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
240 raise
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
241
1911
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
242 def sql_rollback(self):
f5c804379c85 fixed ZRoundup - mostly changes to classic template
Richard Jones <richard@users.sourceforge.net>
parents: 1906
diff changeset
243 ''' Squash any error caused by us having closed the connection (and
1236
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
244 therefore not having anything to roll back)
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
245 '''
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
246 try:
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
247 self.conn.rollback()
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
248 except sqlite.ProgrammingError, value:
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
249 if str(value) != 'rollback failed - Connection is closed.':
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
250 raise
dd52bf10f934 Bug fixes.
Richard Jones <richard@users.sourceforge.net>
parents: 1195
diff changeset
251
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
252 def __repr__(self):
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
253 return '<roundlite 0x%x>'%id(self)
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
254
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
255 def sql_commit(self):
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
256 ''' Actually commit to the database.
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
257
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
258 Ignore errors if there's nothing to commit.
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
259 '''
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
260 try:
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
261 self.conn.commit()
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
262 except sqlite.DatabaseError, error:
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
263 if str(error) != 'cannot commit - no transaction is active':
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
264 raise
2374
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
265 # open a new cursor for subsequent work
31cb1014300c Switch to using sqlite's own locking mechanisms...
Richard Jones <richard@users.sourceforge.net>
parents: 2273
diff changeset
266 self.cursor = self.conn.cursor()
1165
14467c765167 sqlite backend!
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
267
1906
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
268 def sql_index_exists(self, table_name, index_name):
2514
091711fb2f8c Initial logging integration: replace all debug prints with logging calls...
Richard Jones <richard@users.sourceforge.net>
parents: 2374
diff changeset
269 self.sql('pragma index_list(%s)'%table_name)
1906
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
270 for entry in self.cursor.fetchall():
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
271 if entry[1] == index_name:
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
272 return 1
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
273 return 0
f255363e6d97 PostgreSQL backend lands.
Richard Jones <richard@users.sourceforge.net>
parents: 1836
diff changeset
274
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
275 # old-skool id generation
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
276 def newid(self, classname):
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
277 ''' Generate a new id for the given class
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
278 '''
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
279 # get the next ID
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2094
diff changeset
280 sql = 'select num from ids where name=%s'%self.arg
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281 self.sql(sql, (classname, ))
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282 newid = int(self.cursor.fetchone()[0])
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283
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284 # update the counter
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285 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
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286 vals = (int(newid)+1, classname)
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287 self.sql(sql, vals)
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288
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289 # return as string
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290 return str(newid)
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291
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292 def setid(self, classname, setid):
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293 ''' Set the id counter: used during import of database
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294
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295 We add one to make it behave like the seqeunces in postgres.
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296 '''
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297 sql = 'update ids set num=%s where name=%s'%(self.arg, self.arg)
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298 vals = (int(setid)+1, classname)
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299 self.sql(sql, vals)
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300
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301 def create_class(self, spec):
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302 rdbms_common.Database.create_class(self, spec)
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303 sql = 'insert into ids (name, num) values (%s, %s)'
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304 vals = (spec.classname, 1)
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305 self.sql(sql, vals)
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306
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307 class sqliteClass:
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308 def filter(self, search_matches, filterspec, sort=(None,None),
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309 group=(None,None)):
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310 ''' If there's NO matches to a fetch, sqlite returns NULL
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311 instead of nothing
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312 '''
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313 return filter(None, rdbms_common.Class.filter(self, search_matches,
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314 filterspec, sort=sort, group=group))
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315
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316 class Class(sqliteClass, rdbms_common.Class):
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317 pass
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318
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319 class IssueClass(sqliteClass, rdbms_common.IssueClass):
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320 pass
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321
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322 class FileClass(sqliteClass, rdbms_common.FileClass):
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323 pass
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324
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325
Roundup Issue Tracker: http://roundup-tracker.org/