author | Aurelien Campeas <aurelien.campeas@logilab.fr> |
Thu, 05 Jun 2014 09:51:57 +0200 | |
changeset 10335 | 88a4e4a60fce |
parent 10205 | 737271ffe407 |
child 10411 | 4ee15441f2eb |
permissions | -rw-r--r-- |
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# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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# |
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4 |
# This file is part of CubicWeb. |
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5 |
# |
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proper licensing information (LGPL-2.1). Hope I get it right this time.
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6 |
# CubicWeb is free software: you can redistribute it and/or modify it under the |
8167de96c523
proper licensing information (LGPL-2.1). Hope I get it right this time.
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parents:
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7 |
# terms of the GNU Lesser General Public License as published by the Free |
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8 |
# Software Foundation, either version 2.1 of the License, or (at your option) |
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9 |
# any later version. |
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10 |
# |
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replace logilab-common by CubicWeb in disclaimer
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT |
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12 |
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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13 |
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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Sylvain Thénault <sylvain.thenault@logilab.fr>
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14 |
# details. |
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15 |
# |
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# You should have received a copy of the GNU Lesser General Public License along |
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# with CubicWeb. If not, see <http://www.gnu.org/licenses/>. |
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[fti] support for fti ranking: has_text query results sorted by relevance, and provides a way to control weight per entity / entity's attribute
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"""SQL utilities functions and classes.""" |
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__docformat__ = "restructuredtext en" |
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import sys |
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import os |
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import re |
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enable cubicweb-ctl db-dump and db-restore on Windows with SQL Server
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import subprocess |
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from os.path import abspath |
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from itertools import ifilter |
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from logging import getLogger |
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use datetime instead of mx.DateTime
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missing rename
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from logilab import database as db, common as lgc |
0 | 31 |
from logilab.common.shellutils import ProgressBar |
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from logilab.common.deprecation import deprecated |
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from logilab.common.logging_ext import set_log_methods |
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from logilab.database.sqlgen import SQLGenerator |
0 | 35 |
|
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from cubicweb import Binary, ConfigurationError |
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drop common subpackage
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from cubicweb.uilib import remove_html_tags |
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from cubicweb.schema import PURE_VIRTUAL_RTYPES |
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from cubicweb.server import SQL_CONNECT_HOOKS |
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from cubicweb.server.utils import crypt_password |
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|
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lgc.USE_MX_DATETIME = False |
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SQL_PREFIX = 'cw_' |
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|
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def _run_command(cmd): |
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print ' '.join(cmd) |
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return subprocess.call(cmd) |
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|
0 | 49 |
|
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remove references to global environment variable APYCOT_ROOT
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def sqlexec(sqlstmts, cursor_or_execute, withpb=True, |
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pbtitle='', delimiter=';', cnx=None): |
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"""execute sql statements ignoring DROP/ CREATE GROUP or USER statements |
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error. |
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:sqlstmts_as_string: a string or a list of sql statements. |
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:cursor_or_execute: sql cursor or a callback used to execute statements |
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:cnx: if given, commit/rollback at each statement. |
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:withpb: if True, display a progresse bar |
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:pbtitle: a string displayed as the progress bar title (if `withpb=True`) |
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:delimiter: a string used to split sqlstmts (if it is a string) |
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|
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Return the failed statements (same type as sqlstmts) |
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""" |
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if hasattr(cursor_or_execute, 'execute'): |
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execute = cursor_or_execute.execute |
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else: |
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execute = cursor_or_execute |
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sqlstmts_as_string = False |
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if isinstance(sqlstmts, basestring): |
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sqlstmts_as_string = True |
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sqlstmts = sqlstmts.split(delimiter) |
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if withpb: |
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pb = ProgressBar(len(sqlstmts), title=pbtitle) |
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failed = [] |
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for sql in sqlstmts: |
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sql = sql.strip() |
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if withpb: |
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pb.update() |
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if not sql: |
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continue |
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try: |
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# some dbapi modules doesn't accept unicode for sql string |
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execute(str(sql)) |
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except Exception, err: |
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if cnx: |
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cnx.rollback() |
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failed.append(sql) |
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90 |
else: |
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91 |
if cnx: |
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cnx.commit() |
0 | 93 |
if withpb: |
94 |
print |
|
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if sqlstmts_as_string: |
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[server] *init_repository* lookup the database instead of the schema to drop tables (closes #810743)
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failed = delimiter.join(failed) |
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return failed |
0 | 98 |
|
99 |
||
100 |
def sqlgrants(schema, driver, user, |
|
101 |
text_index=True, set_owner=True, |
|
102 |
skip_relations=(), skip_entities=()): |
|
103 |
"""return sql to give all access privileges to the given user on the system |
|
104 |
schema |
|
105 |
""" |
|
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Use our version of schema2sql
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106 |
from cubicweb.server.schema2sql import grant_schema |
0 | 107 |
from cubicweb.server.sources import native |
108 |
output = [] |
|
109 |
w = output.append |
|
110 |
w(native.grant_schema(user, set_owner)) |
|
111 |
w('') |
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112 |
if text_index: |
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[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
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dbhelper = db.get_db_helper(driver) |
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[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
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114 |
w(dbhelper.sql_grant_user_on_fti(user)) |
0 | 115 |
w('') |
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w(grant_schema(schema, user, set_owner, skip_entities=skip_entities, prefix=SQL_PREFIX)) |
0 | 117 |
return '\n'.join(output) |
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119 |
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def sqlschema(schema, driver, text_index=True, |
0 | 121 |
user=None, set_owner=False, |
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122 |
skip_relations=PURE_VIRTUAL_RTYPES, skip_entities=()): |
0 | 123 |
"""return the system sql schema, according to the given parameters""" |
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124 |
from cubicweb.server.schema2sql import schema2sql |
0 | 125 |
from cubicweb.server.sources import native |
126 |
if set_owner: |
|
127 |
assert user, 'user is argument required when set_owner is true' |
|
128 |
output = [] |
|
129 |
w = output.append |
|
130 |
w(native.sql_schema(driver)) |
|
131 |
w('') |
|
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[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
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132 |
dbhelper = db.get_db_helper(driver) |
0 | 133 |
if text_index: |
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w(dbhelper.sql_init_fti().replace(';', ';;')) |
0 | 135 |
w('') |
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w(schema2sql(dbhelper, schema, prefix=SQL_PREFIX, |
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skip_entities=skip_entities, |
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skip_relations=skip_relations).replace(';', ';;')) |
0 | 139 |
if dbhelper.users_support and user: |
140 |
w('') |
|
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w(sqlgrants(schema, driver, user, text_index, set_owner, |
|
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skip_relations, skip_entities).replace(';', ';;')) |
0 | 143 |
return '\n'.join(output) |
144 |
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145 |
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146 |
def sqldropschema(schema, driver, text_index=True, |
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skip_relations=PURE_VIRTUAL_RTYPES, skip_entities=()): |
0 | 148 |
"""return the sql to drop the schema, according to the given parameters""" |
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from cubicweb.server.schema2sql import dropschema2sql |
0 | 150 |
from cubicweb.server.sources import native |
151 |
output = [] |
|
152 |
w = output.append |
|
153 |
if text_index: |
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dbhelper = db.get_db_helper(driver) |
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w(dbhelper.sql_drop_fti()) |
0 | 156 |
w('') |
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157 |
w(dropschema2sql(dbhelper, schema, prefix=SQL_PREFIX, |
1954 | 158 |
skip_entities=skip_entities, |
159 |
skip_relations=skip_relations)) |
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w('') |
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w(native.sql_drop_schema(driver)) |
0 | 162 |
return '\n'.join(output) |
163 |
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164 |
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_SQL_DROP_ALL_USER_TABLES_FILTER_FUNCTION = re.compile('^(?!(sql|pg)_)').match |
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def sql_drop_all_user_tables(driver_or_helper, sqlcursor): |
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"""Return ths sql to drop all tables found in the database system.""" |
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if not getattr(driver_or_helper, 'list_tables', None): |
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dbhelper = db.get_db_helper(driver_or_helper) |
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170 |
else: |
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dbhelper = driver_or_helper |
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172 |
|
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173 |
cmds = [dbhelper.sql_drop_sequence('entities_id_seq')] |
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174 |
# for mssql, we need to drop views before tables |
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175 |
if hasattr(dbhelper, 'list_views'): |
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176 |
cmds += ['DROP VIEW %s;' % name |
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for name in ifilter(_SQL_DROP_ALL_USER_TABLES_FILTER_FUNCTION, dbhelper.list_views(sqlcursor))] |
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178 |
cmds += ['DROP TABLE %s;' % name |
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for name in ifilter(_SQL_DROP_ALL_USER_TABLES_FILTER_FUNCTION, dbhelper.list_tables(sqlcursor))] |
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180 |
return '\n'.join(cmds) |
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181 |
|
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182 |
|
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183 |
class ConnectionWrapper(object): |
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184 |
"""handle connection to the system source, at some point associated to a |
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185 |
:class:`Session` |
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186 |
""" |
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187 |
|
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188 |
# since 3.19, we only have to manage the system source connection |
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|
189 |
def __init__(self, system_source): |
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190 |
# dictionary of (source, connection), indexed by sources'uri |
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|
191 |
self._source = system_source |
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|
192 |
self.cnx = system_source.get_connection() |
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|
193 |
self.cu = self.cnx.cursor() |
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|
194 |
|
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|
195 |
def commit(self): |
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196 |
"""commit the current transaction for this user""" |
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|
197 |
# let exception propagates |
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|
198 |
self.cnx.commit() |
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|
199 |
|
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|
200 |
def rollback(self): |
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|
201 |
"""rollback the current transaction for this user""" |
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|
202 |
# catch exceptions, rollback other sources anyway |
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|
203 |
try: |
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|
204 |
self.cnx.rollback() |
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|
205 |
except Exception: |
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|
206 |
self._source.critical('rollback error', exc_info=sys.exc_info()) |
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|
207 |
# error on rollback, the connection is much probably in a really |
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|
208 |
# bad state. Replace it by a new one. |
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|
209 |
self.reconnect() |
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|
210 |
|
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|
211 |
def close(self, i_know_what_i_do=False): |
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|
212 |
"""close all connections in the set""" |
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|
213 |
if i_know_what_i_do is not True: # unexpected closing safety belt |
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|
214 |
raise RuntimeError('connections set shouldn\'t be closed') |
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|
215 |
try: |
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|
216 |
self.cu.close() |
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|
217 |
self.cu = None |
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|
218 |
except Exception: |
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|
219 |
pass |
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220 |
try: |
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221 |
self.cnx.close() |
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|
222 |
self.cnx = None |
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|
223 |
except Exception: |
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|
224 |
pass |
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|
225 |
|
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|
226 |
# internals ############################################################### |
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227 |
|
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228 |
def cnxset_freed(self): |
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229 |
"""connections set is being freed from a session""" |
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230 |
pass # no nothing by default |
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|
231 |
|
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|
232 |
def reconnect(self): |
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233 |
"""reopen a connection for this source or all sources if none specified |
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234 |
""" |
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235 |
try: |
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236 |
# properly close existing connection if any |
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237 |
self.cnx.close() |
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238 |
except Exception: |
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239 |
pass |
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self._source.info('trying to reconnect') |
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241 |
self.cnx = self._source.get_connection() |
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242 |
self.cu = self.cnx.cursor() |
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243 |
|
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244 |
@deprecated('[3.19] use .cu instead') |
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245 |
def __getitem__(self, uri): |
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assert uri == 'system' |
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return self.cu |
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248 |
|
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@deprecated('[3.19] use repo.system_source instead') |
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250 |
def source(self, uid): |
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assert uid == 'system' |
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return self._source |
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|
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254 |
@deprecated('[3.19] use .cnx instead') |
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255 |
def connection(self, uid): |
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assert uid == 'system' |
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return self.cnx |
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258 |
|
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259 |
|
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class SqliteConnectionWrapper(ConnectionWrapper): |
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"""Sqlite specific connection wrapper: close the connection each time it's |
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262 |
freed (and reopen it later when needed) |
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263 |
""" |
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264 |
def __init__(self, system_source): |
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# don't call parent's __init__, we don't want to initiate the connection |
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self._source = system_source |
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267 |
|
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268 |
_cnx = None |
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269 |
|
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270 |
def cnxset_freed(self): |
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self.cu.close() |
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self.cnx.close() |
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self.cnx = self.cu = None |
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274 |
|
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275 |
@property |
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276 |
def cnx(self): |
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if self._cnx is None: |
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278 |
self._cnx = self._source.get_connection() |
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279 |
self._cu = self._cnx.cursor() |
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280 |
return self._cnx |
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281 |
@cnx.setter |
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282 |
def cnx(self, value): |
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283 |
self._cnx = value |
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284 |
|
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285 |
@property |
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286 |
def cu(self): |
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287 |
if self._cnx is None: |
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288 |
self._cnx = self._source.get_connection() |
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289 |
self._cu = self._cnx.cursor() |
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290 |
return self._cu |
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291 |
@cu.setter |
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292 |
def cu(self, value): |
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293 |
self._cu = value |
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294 |
|
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295 |
|
0 | 296 |
class SQLAdapterMixIn(object): |
297 |
"""Mixin for SQL data sources, getting a connection from a configuration |
|
298 |
dictionary and handling connection locking |
|
299 |
""" |
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300 |
cnx_wrap = ConnectionWrapper |
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301 |
|
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302 |
def __init__(self, source_config, repairing=False): |
0 | 303 |
try: |
304 |
self.dbdriver = source_config['db-driver'].lower() |
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dbname = source_config['db-name'] |
0 | 306 |
except KeyError: |
307 |
raise ConfigurationError('missing some expected entries in sources file') |
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308 |
dbhost = source_config.get('db-host') |
0 | 309 |
port = source_config.get('db-port') |
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310 |
dbport = port and int(port) or None |
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311 |
dbuser = source_config.get('db-user') |
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312 |
dbpassword = source_config.get('db-password') |
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313 |
dbencoding = source_config.get('db-encoding', 'UTF-8') |
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314 |
dbextraargs = source_config.get('db-extra-arguments') |
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315 |
dbnamespace = source_config.get('db-namespace') |
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316 |
self.dbhelper = db.get_db_helper(self.dbdriver) |
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317 |
self.dbhelper.record_connection_info(dbname, dbhost, dbport, dbuser, |
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318 |
dbpassword, dbextraargs, |
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319 |
dbencoding, dbnamespace) |
0 | 320 |
self.sqlgen = SQLGenerator() |
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321 |
# copy back some commonly accessed attributes |
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322 |
dbapi_module = self.dbhelper.dbapi_module |
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323 |
self.OperationalError = dbapi_module.OperationalError |
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324 |
self.InterfaceError = dbapi_module.InterfaceError |
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325 |
self.DbapiError = dbapi_module.Error |
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326 |
self._binary = self.dbhelper.binary_value |
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327 |
self._process_value = dbapi_module.process_value |
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328 |
self._dbencoding = dbencoding |
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329 |
if self.dbdriver == 'sqlite': |
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330 |
self.cnx_wrap = SqliteConnectionWrapper |
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self.dbhelper.dbname = abspath(self.dbhelper.dbname) |
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332 |
if not repairing: |
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333 |
statement_timeout = int(source_config.get('db-statement-timeout', 0)) |
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334 |
if statement_timeout > 0: |
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335 |
def set_postgres_timeout(cnx): |
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336 |
cnx.cursor().execute('SET statement_timeout to %d' % statement_timeout) |
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337 |
cnx.commit() |
e45bf9baa7b7
Add a db-statement-timeout option for postgresql sources
Julien Cristau <julien.cristau@logilab.fr>
parents:
9466
diff
changeset
|
338 |
postgres_hooks = SQL_CONNECT_HOOKS['postgres'] |
e45bf9baa7b7
Add a db-statement-timeout option for postgresql sources
Julien Cristau <julien.cristau@logilab.fr>
parents:
9466
diff
changeset
|
339 |
postgres_hooks.append(set_postgres_timeout) |
9466
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
340 |
|
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
341 |
def wrapped_connection(self): |
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
342 |
"""open and return a connection to the database, wrapped into a class |
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
343 |
handling reconnection and all |
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
344 |
""" |
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
345 |
return self.cnx_wrap(self) |
1619
e4845b54a704
force proper date/datetime according to type (necessary for sqlite at least)
sylvain.thenault@logilab.fr
parents:
1408
diff
changeset
|
346 |
|
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
347 |
def get_connection(self): |
0 | 348 |
"""open and return a connection to the database""" |
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
349 |
return self.dbhelper.get_connection() |
0 | 350 |
|
4893
15ae9a33a7f2
[db backup] fix name error in backup_to_file: we've to pass .confirm all along the chain as for restore
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4854
diff
changeset
|
351 |
def backup_to_file(self, backupfile, confirm): |
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
352 |
for cmd in self.dbhelper.backup_commands(backupfile, |
4342
b4e186da08f2
handle lgc.adbh api changes within regards of backup/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4322
diff
changeset
|
353 |
keepownership=False): |
4353
7db69db4913c
command may now officially be either a string or a list, don't make think it's for backward compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4342
diff
changeset
|
354 |
if _run_command(cmd): |
7db69db4913c
command may now officially be either a string or a list, don't make think it's for backward compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4342
diff
changeset
|
355 |
if not confirm(' [Failed] Continue anyway?', default='n'): |
4342
b4e186da08f2
handle lgc.adbh api changes within regards of backup/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4322
diff
changeset
|
356 |
raise Exception('Failed command: %s' % cmd) |
2493
9806571ea790
major refactoring of database dump/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2396
diff
changeset
|
357 |
|
9806571ea790
major refactoring of database dump/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2396
diff
changeset
|
358 |
def restore_from_file(self, backupfile, confirm, drop=True): |
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
359 |
for cmd in self.dbhelper.restore_commands(backupfile, |
4854
b06d2a3b27d9
logilab.db compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
360 |
keepownership=False, |
2493
9806571ea790
major refactoring of database dump/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2396
diff
changeset
|
361 |
drop=drop): |
4353
7db69db4913c
command may now officially be either a string or a list, don't make think it's for backward compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4342
diff
changeset
|
362 |
if _run_command(cmd): |
7db69db4913c
command may now officially be either a string or a list, don't make think it's for backward compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4342
diff
changeset
|
363 |
if not confirm(' [Failed] Continue anyway?', default='n'): |
4195
86dcaf6bb92f
closes #601987
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4179
diff
changeset
|
364 |
raise Exception('Failed command: %s' % cmd) |
2493
9806571ea790
major refactoring of database dump/restore:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2396
diff
changeset
|
365 |
|
0 | 366 |
def merge_args(self, args, query_args): |
367 |
if args is not None: |
|
4474
55fe19813bb7
kill mx compat code (dropped since 3.2), more efficient merge_args implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
368 |
newargs = {} |
55fe19813bb7
kill mx compat code (dropped since 3.2), more efficient merge_args implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
369 |
for key, val in args.iteritems(): |
0 | 370 |
# convert cubicweb binary into db binary |
371 |
if isinstance(val, Binary): |
|
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
372 |
val = self._binary(val.getvalue()) |
4474
55fe19813bb7
kill mx compat code (dropped since 3.2), more efficient merge_args implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
373 |
newargs[key] = val |
0 | 374 |
# should not collide |
4474
55fe19813bb7
kill mx compat code (dropped since 3.2), more efficient merge_args implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
375 |
newargs.update(query_args) |
55fe19813bb7
kill mx compat code (dropped since 3.2), more efficient merge_args implementation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4466
diff
changeset
|
376 |
return newargs |
0 | 377 |
return query_args |
378 |
||
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
379 |
def process_result(self, cursor, cnx=None, column_callbacks=None): |
0 | 380 |
"""return a list of CubicWeb compliant values from data in the given cursor |
381 |
""" |
|
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
382 |
return list(self.iter_process_result(cursor, cnx, column_callbacks)) |
7341
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
383 |
|
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
384 |
def iter_process_result(self, cursor, cnx, column_callbacks=None): |
7341
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
385 |
"""return a iterator on tuples of CubicWeb compliant values from data |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
386 |
in the given cursor |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
387 |
""" |
5013
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
388 |
# use two different implementations to avoid paying the price of |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
389 |
# callback lookup for each *cell* in results when there is nothing to |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
390 |
# lookup |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
391 |
if not column_callbacks: |
8139
f9ebb6d1abc3
[server] use lgd.process_cursor to optimize processing of large resultsets
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7907
diff
changeset
|
392 |
return self.dbhelper.dbapi_module.process_cursor(cursor, self._dbencoding, |
f9ebb6d1abc3
[server] use lgd.process_cursor to optimize processing of large resultsets
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
7907
diff
changeset
|
393 |
Binary) |
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
394 |
assert cnx |
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
395 |
return self._cb_process_result(cursor, column_callbacks, cnx) |
5013
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
396 |
|
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
397 |
def _cb_process_result(self, cursor, column_callbacks, cnx): |
5013
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
398 |
# begin bind to locals for optimization |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
399 |
descr = cursor.description |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
400 |
encoding = self._dbencoding |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
401 |
process_value = self._process_value |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
402 |
binary = Binary |
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
403 |
# /end |
7341
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
404 |
cursor.arraysize = 100 |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
405 |
while True: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
406 |
results = cursor.fetchmany() |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
407 |
if not results: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
408 |
break |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
409 |
for line in results: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
410 |
result = [] |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
411 |
for col, value in enumerate(line): |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
412 |
if value is None: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
413 |
result.append(value) |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
414 |
continue |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
415 |
cbstack = column_callbacks.get(col, None) |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
416 |
if cbstack is None: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
417 |
value = process_value(value, descr[col], encoding, binary) |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
418 |
else: |
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
419 |
for cb in cbstack: |
10086
98bc2ca1a816
[source/native] session -> cnx
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9891
diff
changeset
|
420 |
value = cb(self, cnx, value) |
5013
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
421 |
result.append(value) |
7341
c419c2d0d13e
add a new method iter_process_result which does the same as proces_result but is a generator (closes #1625374)
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
7229
diff
changeset
|
422 |
yield result |
5013
ad91f93bbb93
[source storage] refactor source sql generation and results handling to allow repository side callbacks
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4965
diff
changeset
|
423 |
|
0 | 424 |
def preprocess_entity(self, entity): |
425 |
"""return a dictionary to use as extra argument to cursor.execute |
|
1251
af40e615dc89
introduce a 'cw_' prefix on entity table and column names so we don't conflict with sql or DBMS specific keywords
sylvain.thenault@logilab.fr
parents:
0
diff
changeset
|
426 |
to insert/update an entity into a SQL database |
0 | 427 |
""" |
428 |
attrs = {} |
|
429 |
eschema = entity.e_schema |
|
8944
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
430 |
converters = getattr(self.dbhelper, 'TYPE_CONVERTERS', {}) |
6142
8bc6eac1fac1
[session] cleanup hook / operation / entity edition api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5768
diff
changeset
|
431 |
for attr, value in entity.cw_edited.iteritems(): |
6284
c35b2ebeb3c9
[repo/sql] don't do anything when value is None. This will avoid None to be turned into False in the case of a boolean for instance.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
5768
diff
changeset
|
432 |
if value is not None and eschema.subjrels[attr].final: |
0 | 433 |
atype = str(entity.e_schema.destination(attr)) |
8944
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
434 |
if atype in converters: |
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
435 |
# It is easier to modify preprocess_entity rather |
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
436 |
# than add_entity (native) as this behavior |
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
437 |
# may also be used for update. |
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
438 |
value = converters[atype](value) |
b167f039b6cb
[sql] preprocess_entity uses lgdb helper's SQL converters.
Vincent Michel <vincent.michel@logilab.fr>
parents:
8755
diff
changeset
|
439 |
elif atype == 'Password': # XXX could be done using a TYPE_CONVERTERS callback |
0 | 440 |
# if value is a Binary instance, this mean we got it |
441 |
# from a query result and so it is already encrypted |
|
442 |
if isinstance(value, Binary): |
|
443 |
value = value.getvalue() |
|
444 |
else: |
|
445 |
value = crypt_password(value) |
|
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
446 |
value = self._binary(value) |
0 | 447 |
elif isinstance(value, Binary): |
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
448 |
value = self._binary(value.getvalue()) |
1251
af40e615dc89
introduce a 'cw_' prefix on entity table and column names so we don't conflict with sql or DBMS specific keywords
sylvain.thenault@logilab.fr
parents:
0
diff
changeset
|
449 |
attrs[SQL_PREFIX+str(attr)] = value |
4965
04543ed0bbdc
[source] only consider edited_attributes in source.preprocess_entity()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
4913
diff
changeset
|
450 |
attrs[SQL_PREFIX+'eid'] = entity.eid |
0 | 451 |
return attrs |
452 |
||
7083
b8e35cde46e9
help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6379
diff
changeset
|
453 |
# these are overridden by set_log_methods below |
b8e35cde46e9
help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6379
diff
changeset
|
454 |
# only defining here to prevent pylint from complaining |
b8e35cde46e9
help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents:
6379
diff
changeset
|
455 |
info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None |
0 | 456 |
|
457 |
set_log_methods(SQLAdapterMixIn, getLogger('cubicweb.sqladapter')) |
|
458 |
||
9447
0636c4960259
[multi-sources-removal] Drop cw.server.sources.extlite
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9364
diff
changeset
|
459 |
|
9466
c3a5f4507f12
[multi-sources-removal] Turn ConnectionsSet into simpler ConnectionWrapper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9447
diff
changeset
|
460 |
# connection initialization functions ########################################## |
9447
0636c4960259
[multi-sources-removal] Drop cw.server.sources.extlite
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
9364
diff
changeset
|
461 |
|
0 | 462 |
def init_sqlite_connexion(cnx): |
463 |
||
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
464 |
class group_concat(object): |
0 | 465 |
def __init__(self): |
9364
73bd5012336f
Make the GROUP_CONCAT aggregate function not repeat values (closes #3223975)
Julien Cristau <julien.cristau@logilab.fr>
parents:
9340
diff
changeset
|
466 |
self.values = set() |
0 | 467 |
def step(self, value): |
468 |
if value is not None: |
|
9364
73bd5012336f
Make the GROUP_CONCAT aggregate function not repeat values (closes #3223975)
Julien Cristau <julien.cristau@logilab.fr>
parents:
9340
diff
changeset
|
469 |
self.values.add(value) |
0 | 470 |
def finalize(self): |
9335
7da91456be2c
[sqlutils] fix sqlite group_concat harder (related to #3331906)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9334
diff
changeset
|
471 |
return ', '.join(unicode(v) for v in self.values) |
9334
ea12401c0a68
[sqlutils] avoid a crash with sqlite when using group_concat (closes #3331906)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
9267
diff
changeset
|
472 |
|
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
473 |
cnx.create_aggregate("GROUP_CONCAT", 1, group_concat) |
1619
e4845b54a704
force proper date/datetime according to type (necessary for sqlite at least)
sylvain.thenault@logilab.fr
parents:
1408
diff
changeset
|
474 |
|
0 | 475 |
def _limit_size(text, maxsize, format='text/plain'): |
476 |
if len(text) < maxsize: |
|
477 |
return text |
|
478 |
if format in ('text/html', 'text/xhtml', 'text/xml'): |
|
479 |
text = remove_html_tags(text) |
|
480 |
if len(text) > maxsize: |
|
481 |
text = text[:maxsize] + '...' |
|
482 |
return text |
|
483 |
||
484 |
def limit_size3(text, format, maxsize): |
|
485 |
return _limit_size(text, maxsize, format) |
|
486 |
cnx.create_function("LIMIT_SIZE", 3, limit_size3) |
|
487 |
||
488 |
def limit_size2(text, maxsize): |
|
489 |
return _limit_size(text, maxsize) |
|
490 |
cnx.create_function("TEXT_LIMIT_SIZE", 2, limit_size2) |
|
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
491 |
|
7904
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
492 |
from logilab.common.date import strptime |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
493 |
def weekday(ustr): |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
494 |
try: |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
495 |
dt = strptime(ustr, '%Y-%m-%d %H:%M:%S') |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
496 |
except: |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
497 |
dt = strptime(ustr, '%Y-%m-%d') |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
498 |
# expect sunday to be 1, saturday 7 while weekday method return 0 for |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
499 |
# monday |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
500 |
return (dt.weekday() + 1) % 7 |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
501 |
cnx.create_function("WEEKDAY", 1, weekday) |
f41bb38dda7c
[rql, sql] support for weekday function introduced in lgdp 1.7 (closes #1979717)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7341
diff
changeset
|
502 |
|
10205
737271ffe407
Ask sqlite to check foreign keys
Julien Cristau <julien.cristau@logilab.fr>
parents:
10200
diff
changeset
|
503 |
cnx.cursor().execute("pragma foreign_keys = on") |
737271ffe407
Ask sqlite to check foreign keys
Julien Cristau <julien.cristau@logilab.fr>
parents:
10200
diff
changeset
|
504 |
|
0 | 505 |
import yams.constraints |
4831
c5aec27c1bf7
[repo] use logilab.db instead of lgc.adbh/lgc.db/lgc.sqlgen/indexer, test new date extranction functions
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4719
diff
changeset
|
506 |
yams.constraints.patch_sqlite_decimal() |
0 | 507 |
|
508 |
sqlite_hooks = SQL_CONNECT_HOOKS.setdefault('sqlite', []) |
|
509 |
sqlite_hooks.append(init_sqlite_connexion) |
|
7166
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
510 |
|
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
511 |
|
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
512 |
def init_postgres_connexion(cnx): |
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
513 |
cnx.cursor().execute('SET TIME ZONE UTC') |
7229
a60522259c2c
[tz postgres support] we've to commit the connection once time-zone is set, else we may loose the setting
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7221
diff
changeset
|
514 |
# commit is needed, else setting are lost if the connection is first |
9267
24d9b86dfa54
spelling: rollbacked -> rolled back
Rémi Cardona <remi.cardona@logilab.fr>
parents:
8944
diff
changeset
|
515 |
# rolled back |
7229
a60522259c2c
[tz postgres support] we've to commit the connection once time-zone is set, else we may loose the setting
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7221
diff
changeset
|
516 |
cnx.commit() |
7166
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
517 |
|
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
518 |
postgres_hooks = SQL_CONNECT_HOOKS.setdefault('postgres', []) |
dde161937d3e
[time zone] support for TZDatetime and TZTime data type
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
7083
diff
changeset
|
519 |
postgres_hooks.append(init_postgres_connexion) |