85 lines
3.3 KiB
Python
85 lines
3.3 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.schema import (
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Column, ForeignKey, Index, MetaData, Table, UniqueConstraint)
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from glance.db.sqlalchemy.migrate_repo.schema import (
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Boolean, DateTime, Integer, String, Text, create_tables, drop_tables,
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from_migration_import)
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def define_image_properties_table(meta):
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(define_images_table,) = from_migration_import(
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'001_add_images_table', ['define_images_table'])
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images = define_images_table(meta)
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# NOTE(dperaza) DB2: specify the UniqueConstraint option when creating the
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# table will cause an index being created to specify the index
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# name and skip the step of creating another index with the same columns.
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# The index name is needed so it can be dropped and re-created later on.
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constr_kwargs = {}
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if meta.bind.name == 'ibm_db_sa':
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constr_kwargs['name'] = 'ix_image_properties_image_id_key'
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image_properties = Table('image_properties',
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meta,
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Column('id',
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Integer(),
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primary_key=True,
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nullable=False),
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Column('image_id',
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Integer(),
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ForeignKey('images.id'),
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nullable=False,
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index=True),
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Column('key', String(255), nullable=False),
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Column('value', Text()),
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Column('created_at', DateTime(), nullable=False),
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Column('updated_at', DateTime()),
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Column('deleted_at', DateTime()),
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Column('deleted',
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Boolean(),
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nullable=False,
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default=False,
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index=True),
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UniqueConstraint('image_id', 'key',
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**constr_kwargs),
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mysql_engine='InnoDB',
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extend_existing=True)
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if meta.bind.name != 'ibm_db_sa':
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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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return image_properties
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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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tables = [define_image_properties_table(meta)]
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create_tables(tables)
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def downgrade(migrate_engine):
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meta = MetaData()
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meta.bind = migrate_engine
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tables = [define_image_properties_table(meta)]
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drop_tables(tables)
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