fec4f537fb
oslo.db 12.1.0 has changed the default value for the 'autocommit' parameter of 'LegacyEngineFacade' from 'True' to 'False'. This is a necessary step to ensure compatibility with SQLAlchemy 2.0. However, we are currently relying on the autocommit behavior and need changes to explicitly manage sessions. Until that happens, we need to override the default. Change-Id: I502e42d1188a5273d030d50aff310d16916b0e17 Signed-off-by: Ayumu Ueha <ueha.ayumu@fujitsu.com>
49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
# Copyright 2011 VMware, Inc.
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# All Rights Reserved.
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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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from oslo_config import cfg
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from oslo_db.sqlalchemy import enginefacade
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context_manager = enginefacade.transaction_context()
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# FIXME(ueha): we need to remove reliance on autocommit semantics ASAP
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# since it's not compatible with SQLAlchemy 2.0
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context_manager.configure(__autocommit=True)
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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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context_manager.configure(sqlite_fk=True, **cfg.CONF.database)
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_FACADE = context_manager._factory.get_legacy_facade()
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return _FACADE
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def get_engine():
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"""Helper method to grab engine."""
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facade = _create_facade_lazily()
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return facade.get_engine()
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def get_session(autocommit=True, expire_on_commit=False):
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"""Helper method to grab session."""
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facade = _create_facade_lazily()
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return facade.get_session(autocommit=autocommit,
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expire_on_commit=expire_on_commit)
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