heat/heat/db/sqlalchemy/migrate_repo/versions/029_event_id_to_uuid.py

44 lines
1.5 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
from migrate.versioning import util as migrate_util
from heat.openstack.common.gettextutils import _
def upgrade(migrate_engine):
meta = sqlalchemy.MetaData(bind=migrate_engine)
event = sqlalchemy.Table('event', meta, autoload=True)
event.c.id.alter(type=sqlalchemy.String(36), primary_key=True,
default=lambda: str(uuid.uuid4()))
def downgrade(migrate_engine):
meta = sqlalchemy.MetaData(bind=migrate_engine)
event = sqlalchemy.Table('event', meta, autoload=True)
try:
event.c.id.alter(type=sqlalchemy.Integer, primary_key=True)
except:
# NOTE(pafuent): since there is no way to downgrade just passing
# The same is did in 018_resource_id_uuid.py
migrate_util.log.warning(_('If you really want to downgrade to this '
'version, you should drop all the records.'
))
pass