Source code for keystone.common.sql.migrate_repo.versions.031_drop_credential_indexes
# Copyright 2013 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import sqlalchemy
[docs]def upgrade(migrate_engine):
#This migration is relevant only for mysql because for all other
#migrate engines these indexes were successfully dropped.
if migrate_engine.name != 'mysql':
return
meta = sqlalchemy.MetaData(bind=migrate_engine)
table = sqlalchemy.Table('credential', meta, autoload=True)
for index in table.indexes:
index.drop()
[docs]def downgrade(migrate_engine):
if migrate_engine.name != 'mysql':
return
meta = sqlalchemy.MetaData(bind=migrate_engine)
table = sqlalchemy.Table('credential', meta, autoload=True)
index = sqlalchemy.Index('user_id', table.c['user_id'])
index.create()
index = sqlalchemy.Index('credential_project_id_fkey',
table.c['project_id'])
index.create()