53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack LLC.
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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.from sqlalchemy import *
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from sqlalchemy import Column, Integer, String, MetaData, Table
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meta = MetaData()
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#
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# Tables to alter
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#
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#
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instance_id = Column('instance_id', Integer())
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instance_uuid = Column('instance_uuid', String(255))
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def upgrade(migrate_engine):
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meta.bind = migrate_engine
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migrations = Table('migrations', meta, autoload=True)
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migrations.create_column(instance_uuid)
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if migrate_engine.name == "mysql":
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try:
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migrate_engine.execute("ALTER TABLE migrations DROP FOREIGN KEY "
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"`migrations_ibfk_1`;")
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except Exception: # Don't care, just fail silently.
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pass
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migrations.c.instance_id.drop()
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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migrations = Table('migrations', meta, autoload=True)
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migrations.c.instance_uuid.drop()
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migrations.create_column(instance_id)
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