88 lines
3.1 KiB
Python
88 lines
3.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012 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, String, Table
|
|
from cinder import log as logging
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def upgrade(migrate_engine):
|
|
meta = MetaData()
|
|
meta.bind = migrate_engine
|
|
|
|
instances = Table('instances', meta, autoload=True)
|
|
|
|
types = {}
|
|
for instance in migrate_engine.execute(instances.select()):
|
|
if instance.instance_type_id is None:
|
|
types[instance.id] = None
|
|
continue
|
|
try:
|
|
types[instance.id] = int(instance.instance_type_id)
|
|
except ValueError:
|
|
LOG.warn("Instance %s did not have instance_type_id "
|
|
"converted to an integer because its value is %s" %
|
|
(instance.id, instance.instance_type_id))
|
|
types[instance.id] = None
|
|
|
|
integer_column = Column('instance_type_id_int', Integer(), nullable=True)
|
|
string_column = instances.c.instance_type_id
|
|
|
|
integer_column.create(instances)
|
|
for instance_id, instance_type_id in types.iteritems():
|
|
update = instances.update().\
|
|
where(instances.c.id == instance_id).\
|
|
values(instance_type_id_int=instance_type_id)
|
|
migrate_engine.execute(update)
|
|
|
|
string_column.alter(name='instance_type_id_str')
|
|
integer_column.alter(name='instance_type_id')
|
|
string_column.drop()
|
|
|
|
|
|
def downgrade(migrate_engine):
|
|
meta = MetaData()
|
|
meta.bind = migrate_engine
|
|
|
|
instances = Table('instances', meta, autoload=True)
|
|
|
|
integer_column = instances.c.instance_type_id
|
|
string_column = Column('instance_type_id_str',
|
|
String(length=255, convert_unicode=False,
|
|
assert_unicode=None, unicode_error=None,
|
|
_warn_on_bytestring=False),
|
|
nullable=True)
|
|
|
|
types = {}
|
|
for instance in migrate_engine.execute(instances.select()):
|
|
if instance.instance_type_id is None:
|
|
types[instance.id] = None
|
|
else:
|
|
types[instance.id] = str(instance.instance_type_id)
|
|
|
|
string_column.create(instances)
|
|
for instance_id, instance_type_id in types.iteritems():
|
|
update = instances.update().\
|
|
where(instances.c.id == instance_id).\
|
|
values(instance_type_id_str=instance_type_id)
|
|
migrate_engine.execute(update)
|
|
|
|
integer_column.alter(name='instance_type_id_int')
|
|
string_column.alter(name='instance_type_id')
|
|
integer_column.drop()
|