60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
# Copyright 2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from sqlalchemy import Index, MetaData
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from glance.db.sqlalchemy.migrate_repo.schema import from_migration_import
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def get_images_table(meta):
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"""
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No changes to the image properties table from 002...
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"""
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(get_images_table,) = from_migration_import(
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'004_add_checksum', ['get_images_table'])
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images = get_images_table(meta)
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return images
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def upgrade(migrate_engine):
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meta = MetaData()
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meta.bind = migrate_engine
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(get_image_properties_table,) = from_migration_import(
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'004_add_checksum', ['get_image_properties_table'])
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image_properties = get_image_properties_table(meta)
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if migrate_engine.name == "ibm_db_sa":
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# NOTE(dperaza) ibm db2 does not allow ALTER INDEX so we will drop
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# the index, rename the column, then re-create the index
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sql_commands = [
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"""ALTER TABLE image_properties DROP UNIQUE
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ix_image_properties_image_id_key;""",
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"""ALTER TABLE image_properties RENAME COLUMN \"key\" to name;""",
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"""ALTER TABLE image_properties ADD CONSTRAINT
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ix_image_properties_image_id_name UNIQUE(image_id, name);""",
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]
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for command in sql_commands:
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meta.bind.execute(command)
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else:
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index = Index('ix_image_properties_image_id_key',
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image_properties.c.image_id,
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image_properties.c.key)
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index.rename('ix_image_properties_image_id_name')
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image_properties = get_image_properties_table(meta)
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image_properties.columns['key'].alter(name="name")
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