# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2011 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 Column, Integer, MetaData, Table


def upgrade(migrate_engine):
    # Upgrade operations go here. Don't create your own engine;
    # bind migrate_engine to your metadata
    meta = MetaData()
    meta.bind = migrate_engine

    migrations = Table('migrations', meta, autoload=True)

    old_flavor_id = Column('old_flavor_id', Integer())
    new_flavor_id = Column('new_flavor_id', Integer())

    migrations.create_column(old_flavor_id)
    migrations.create_column(new_flavor_id)


def downgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine

    migrations = Table('migrations', meta, autoload=True)

    migrations.drop_column('old_flavor_id')
    migrations.drop_column('new_flavor_id')
