38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
# 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 sqlalchemy import Column
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from sqlalchemy import MetaData, String, Table
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def upgrade(migrate_engine):
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"""Add cgsnapshot_id column to consistencygroups."""
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meta = MetaData()
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meta.bind = migrate_engine
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consistencygroups = Table('consistencygroups', meta, autoload=True)
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cgsnapshot_id = Column('cgsnapshot_id', String(36))
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consistencygroups.create_column(cgsnapshot_id)
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consistencygroups.update().values(cgsnapshot_id=None).execute()
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def downgrade(migrate_engine):
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"""Remove cgsnapshot_id column from consistencygroups."""
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meta = MetaData()
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meta.bind = migrate_engine
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consistencygroups = Table('consistencygroups', meta, autoload=True)
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cgsnapshot_id = consistencygroups.columns.cgsnapshot_id
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consistencygroups.drop_column(cgsnapshot_id)
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