0613521f19
Added a db abstraction for quota sync methods. Implementation currently is based on sqlalchemy. Added database migration enablement. Added the db unit tests. Further enhancement to the db API will be added in a separate comment. Change-Id: I56284919ad54d2359fa03d476cc89a4acdc68122
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
# Copyright (c) 2015 Ericsson AB.
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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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import sqlalchemy
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def upgrade(migrate_engine):
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meta = sqlalchemy.MetaData()
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meta.bind = migrate_engine
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quotas = sqlalchemy.Table(
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'quotas', meta,
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sqlalchemy.Column('id', sqlalchemy.Integer,
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primary_key=True, nullable=False),
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sqlalchemy.Column('project_id', sqlalchemy.String(36)),
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sqlalchemy.Column('resource', sqlalchemy.String(255), nullable=False),
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sqlalchemy.Column('hard_limit', sqlalchemy.Integer, nullable=False),
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sqlalchemy.Column('created_at', sqlalchemy.DateTime),
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sqlalchemy.Column('updated_at', sqlalchemy.DateTime),
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sqlalchemy.Column('deleted_at', sqlalchemy.DateTime),
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sqlalchemy.Column('deleted', sqlalchemy.Integer),
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mysql_engine='InnoDB',
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mysql_charset='utf8'
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)
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tables = (
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quotas,
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)
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for index, table in enumerate(tables):
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try:
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table.create()
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except Exception:
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# If an error occurs, drop all tables created so far to return
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# to the previously existing state.
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meta.drop_all(tables=tables[:index])
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raise
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def downgrade(migrate_engine):
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raise NotImplementedError('Database downgrade not supported - '
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'would drop all tables')
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