deb-designate/designate/sqlalchemy/session.py
Endre Karlson 9d5d70e7f1 Switch to oslo.db and fix cmd.manage
This change doesn't remove all of the d.sqla.* modules for compat so we don't
need to change more things then needed. Things like multiple engines etc are
supported via a _FACADE dict in d.sqla.session and other things we need as
well.

We remove d.o.common.db code since it is not needed anymore and technically
replaced by oslo.db.

Notably the *biggest* change is changing database_connection to connection.

Also fixes problems with arguments in cmd.manage

Change-Id: I948a42b7f3dbc1d484200e86b3f8d0b85769ad08
2014-06-20 15:27:54 +02:00

50 lines
1.4 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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 Handling for SQLAlchemy backend."""
from oslo.config import cfg
from oslo.db.sqlalchemy import session
from designate.openstack.common import log as logging
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
_FACADES = {}
def _create_facade_lazily(name):
if name not in _FACADES:
_FACADES[name] = session.EngineFacade(
cfg.CONF[name].connection,
**dict(cfg.CONF[name].iteritems()))
return _FACADES[name]
def get_engine(name):
facade = _create_facade_lazily(name)
return facade.get_engine()
def get_session(name, **kwargs):
facade = _create_facade_lazily(name)
return facade.get_session(**kwargs)