heat/heat/db/sqlalchemy/migrate_repo/versions/018_resource_id_uuid.py

38 lines
1.2 KiB
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.
import uuid
import sqlalchemy
def upgrade(migrate_engine):
meta = sqlalchemy.MetaData(bind=migrate_engine)
resource = sqlalchemy.Table('resource', meta, autoload=True)
resource.c.id.alter(sqlalchemy.String(36), primary_key=True,
default=lambda: str(uuid.uuid4()))
def downgrade(migrate_engine):
meta = sqlalchemy.MetaData(bind=migrate_engine)
resource = sqlalchemy.Table('resource', meta, autoload=True)
try:
resource.c.id.alter(sqlalchemy.Integer, primary_key=True)
except:
#XXX: since there is no way to downgrade just passing
pass