deb-murano/muranoapi/db/session.py
Serg Melikyan 5a57f15ded Move to openstack.common.db
Change-Id: I74a2e1d25b378b57e2e0ba181eee95bf96a5afea
2013-06-28 14:44:42 +04:00

52 lines
1.9 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 Piston Cloud Computing, Inc.
# All Rights Reserved.
#
# 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.
"""Session management functions."""
import os
from migrate.versioning import api as versioning_api
from migrate import exceptions as versioning_exceptions
from muranoapi.openstack.common.db.sqlalchemy import session
from muranoapi.common.config import CONF as conf
from muranoapi.openstack.common import log as logging
from muranoapi.db import migrate_repo
log = logging.getLogger(__name__)
def get_session(autocommit=True, expire_on_commit=False):
if not session._MAKER:
if conf.database.auto_create:
log.info(_('auto-creating DB'))
_auto_create_db()
else:
log.info(_('not auto-creating DB'))
return session.get_session(autocommit, expire_on_commit)
def _auto_create_db():
repo_path = os.path.abspath(os.path.dirname(migrate_repo.__file__))
try:
versioning_api.upgrade(conf.database.connection, repo_path)
except versioning_exceptions.DatabaseNotControlledError:
versioning_api.version_control(conf.database.connection, repo_path)
versioning_api.upgrade(conf.database.connection, repo_path)