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# Copyright 2012 OpenStack Foundation
#
# 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 sqlalchemy as sql
def upgrade(migrate_engine):
# Upgrade operations go here. Don't create your own engine; bind
# migrate_engine to your metadata
meta = sql.MetaData()
meta.bind = migrate_engine
# catalog
service_table = sql.Table(
'example',
meta,
sql.Column('id', sql.String(64), primary_key=True),
sql.Column('type', sql.String(255)),
sql.Column('extra', sql.Text()))
service_table.create(migrate_engine, checkfirst=True)
def downgrade(migrate_engine):
# Operations to reverse the above upgrade go here.
meta = sql.MetaData()
meta.bind = migrate_engine
tables = ['example']
for t in tables:
table = sql.Table(t, meta, autoload=True)
table.drop(migrate_engine, checkfirst=True)
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