trove/trove/db/sqlalchemy/migrate_repo/versions/025_add_service_statuses_in...

45 lines
1.4 KiB
Python

# Copyright 2014 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.
from oslo_log import log as logging
from sqlalchemy.exc import OperationalError
from sqlalchemy.schema import Index
from sqlalchemy.schema import MetaData
from trove.db.sqlalchemy.migrate_repo.schema import Table
logger = logging.getLogger('trove.db.sqlalchemy.migrate_repo.schema')
def upgrade(migrate_engine):
meta = MetaData()
meta.bind = migrate_engine
service_statuses = Table('service_statuses', meta, autoload=True)
idx = Index("service_statuses_instance_id", service_statuses.c.instance_id)
try:
idx.create()
except OperationalError as e:
logger.info(e)
def downgrade(migrate_engine):
meta = MetaData()
meta.bind = migrate_engine
service_statuses = Table('service_statuses', meta, autoload=True)
idx = Index("service_statuses_instance_id", service_statuses.c.instance_id)
idx.drop()