nova/nova/db/sqlalchemy/migrate_repo/versions/076_remove_unique_constrain...

67 lines
2.5 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) OpenStack, LLC
# All Rights Reserved.
#
# 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 *
from sqlalchemy import MetaData, Table
from migrate.changeset.constraint import UniqueConstraint
meta = MetaData()
def upgrade(migrate_engine):
meta.bind = migrate_engine
table = Table('instance_types', meta, autoload=True)
# NOTE(vish): These constraint names may be dependent on the backend, but
# there doesn't seem to be we a way to determine the proper
# name for existing constraints. These names are correct for
# mysql.
cons = UniqueConstraint('name',
name='name',
table=table)
cons.drop()
cons = UniqueConstraint('flavorid',
name='instance_types_flavorid_str_key',
table=table)
cons.drop()
table = Table('volume_types', meta, autoload=True)
cons = UniqueConstraint('name',
name='name',
table=table)
cons.drop()
def downgrade(migrate_engine):
meta.bind = migrate_engine
table = Table('instance_types', meta, autoload=True)
# NOTE(vish): These constraint names may be dependent on the backend, but
# there doesn't seem to be we a way to determine the proper
# name for existing constraints. These names are correct for
# mysql.
cons = UniqueConstraint('name',
name='name',
table=table)
cons.create()
table = Table('instance_types', meta, autoload=True)
cons = UniqueConstraint('flavorid',
name='instance_types_flavorid_str_key',
table=table)
cons.create()
table = Table('volume_types', meta, autoload=True)
cons = UniqueConstraint('name',
name='name',
table=table)
cons.create()