56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Session management functions."""
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import os
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from migrate import exceptions as versioning_exceptions
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from migrate.versioning import api as versioning_api
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from murano.common import config
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from murano.db import migrate_repo
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from murano.openstack.common.db.sqlalchemy import session as db_session
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from murano.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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CONF = config.CONF
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_FACADE = None
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def _create_facade_lazily():
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global _FACADE
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if _FACADE is None:
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_FACADE = db_session.EngineFacade(
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CONF.database.connection, sqlite_fk=True,
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**dict(CONF.database.iteritems())
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)
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return _FACADE
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def get_session(autocommit=True, expire_on_commit=False):
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s = _create_facade_lazily().get_session(autocommit=autocommit,
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expire_on_commit=expire_on_commit)
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return s
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def db_sync():
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repo_path = os.path.abspath(os.path.dirname(migrate_repo.__file__))
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try:
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versioning_api.upgrade(CONF.database.connection, repo_path)
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except versioning_exceptions.DatabaseNotControlledError:
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versioning_api.version_control(CONF.database.connection, repo_path)
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versioning_api.upgrade(CONF.database.connection, repo_path)
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