cinder/cinder/db/sqlalchemy/migrate_repo/versions/034_volume_type_add_desc_co...

26 lines
984 B
Python

# 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.
from sqlalchemy import Column, MetaData, Table, String
def upgrade(migrate_engine):
"""Add description column to volume_types."""
meta = MetaData()
meta.bind = migrate_engine
volume_types = Table('volume_types', meta, autoload=True)
description = Column('description', String(255))
volume_types.create_column(description)
volume_types.update().values(description=None).execute()