Source code for glance.db.sqlalchemy.migrate_repo.versions.006_key_to_name
# Copyright 2011 OpenStack Foundation
# 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 * # noqa
from glance.db.sqlalchemy.migrate_repo.schema import from_migration_import
[docs]def get_images_table(meta):
"""
No changes to the image properties table from 002...
"""
(get_images_table,) = from_migration_import(
'004_add_checksum', ['get_images_table'])
images = get_images_table(meta)
return images
[docs]def upgrade(migrate_engine):
meta = MetaData()
meta.bind = migrate_engine
(get_image_properties_table,) = from_migration_import(
'004_add_checksum', ['get_image_properties_table'])
image_properties = get_image_properties_table(meta)
if migrate_engine.name == "ibm_db_sa":
# NOTE(dperaza) ibm db2 does not allow ALTER INDEX so we will drop
# the index, rename the column, then re-create the index
sql_commands = [
"""ALTER TABLE image_properties DROP UNIQUE
ix_image_properties_image_id_key;""",
"""ALTER TABLE image_properties RENAME COLUMN \"key\" to name;""",
"""ALTER TABLE image_properties ADD CONSTRAINT
ix_image_properties_image_id_name UNIQUE(image_id, name);""",
]
for command in sql_commands:
meta.bind.execute(command)
else:
index = Index('ix_image_properties_image_id_key',
image_properties.c.image_id,
image_properties.c.key)
index.rename('ix_image_properties_image_id_name')
image_properties = get_image_properties_table(meta)
image_properties.columns['key'].alter(name="name")