Source code for keystone.common.sql.migrate_repo.versions.032_username_length

# Copyright 2013 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
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#    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
from sqlalchemy.orm import sessionmaker


[docs]def upgrade(migrate_engine): meta = sql.MetaData() meta.bind = migrate_engine user_table = sql.Table('user', meta, autoload=True) user_table.c.name.alter(type=sql.String(255))
[docs]def downgrade(migrate_engine): meta = sql.MetaData() meta.bind = migrate_engine user_table = sql.Table('user', meta, autoload=True) if migrate_engine.name != 'mysql': # NOTE(aloga): sqlite does not enforce length on the # VARCHAR types: http://www.sqlite.org/faq.html#q9 # postgresql and DB2 do not truncate. maker = sessionmaker(bind=migrate_engine) session = maker() for user in session.query(user_table).all(): values = {'name': user.name[:64]} update = (user_table.update(). where(user_table.c.id == user.id). values(values)) migrate_engine.execute(update) session.commit() session.close() user_table.c.name.alter(type=sql.String(64))