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# Copyright 2013 IBM Corp.
#
# 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 MetaData, Table
from nova.openstack.common import timeutils
def upgrade(migrate_engine):
meta = MetaData()
meta.bind = migrate_engine
sys_meta = Table('instance_system_metadata', meta, autoload=True)
sys_meta.update().\
values(value=None).\
where(sys_meta.c.key != 'instance_type_name').\
where(sys_meta.c.key != 'instance_type_flavorid').\
where(sys_meta.c.key.like('instance_type_%')).\
where(sys_meta.c.value == 'None').\
execute()
now = timeutils.utcnow()
sys_meta.update().\
values(created_at=now).\
where(sys_meta.c.created_at == None).\
where(sys_meta.c.key.like('instance_type_%')).\
execute()
def downgrade(migration_engine):
# This migration only touches data, and only metadata at that. No need
# to go through and delete old metadata items.
pass
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