Merge "make datastore_version_id required"

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Jenkins 2014-01-23 23:08:48 +00:00 committed by Gerrit Code Review
commit c14553393f

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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.
from sqlalchemy.schema import MetaData
from sqlalchemy.sql.expression import select
from trove.common import cfg
from trove.datastore.models import DBDatastore
from trove.datastore.models import DBDatastoreVersion
from trove.db.sqlalchemy import session
from trove.db.sqlalchemy.migrate_repo.schema import Table
from trove.instance.models import DBInstance
CONF = cfg.CONF
meta = MetaData()
def upgrade(migrate_engine):
meta.bind = migrate_engine
instance_table = Table('instances', meta, autoload=True)
session.configure_db(CONF)
instances = DBInstance.find_all(datastore_version_id=None)
if instances.count() > 0:
datastore = DBDatastore.get_by(manager="mysql")
datastore = datastore or DBDatastore.create(
name="Legacy MySQL",
manager="mysql",
)
image_table = Table('service_images', meta, autoload=True)
image = select(
columns=["id", "image_id", "service_name"],
from_obj=image_table,
whereclause="service_name='mysql'",
limit=1
).execute().fetchone()
image_id = "00000000-0000-0000-0000-000000000000"
if image:
image_id = image.image_id
version = DBDatastoreVersion.create(
datastore_id=datastore.id,
name="Unknown Legacy Version",
image_id=image_id,
active=False,
)
for instance in instances:
instance.update_db(datastore_version_id=version.id)
instance_table.c.datastore_version_id.alter(nullable=False)
def downgrade(migrate_engine):
meta.bind = migrate_engine
instance_table = Table('instances', meta, autoload=True)
instance_table.c.datastore_version_id.alter(nullable=True)