66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
# Copyright 2012 OpenStack Foundation
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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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import sqlalchemy as sql
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from keystone.common.sql import migration_helpers
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def upgrade(migrate_engine):
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"""Replace API-version specific endpoint tables with one based on v3."""
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meta = sql.MetaData()
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meta.bind = migrate_engine
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legacy_table = sql.Table('endpoint_v2', meta, autoload=True)
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legacy_table.drop()
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new_table = sql.Table('endpoint_v3', meta, autoload=True)
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renames = {'endpoint': new_table}
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service_table = sql.Table('service', meta, autoload=True)
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constraints = [{'table': new_table,
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'fk_column': 'service_id',
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'ref_column': service_table.c.id}]
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migration_helpers.rename_tables_with_constraints(renames, constraints,
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migrate_engine)
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def downgrade(migrate_engine):
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"""Create API-version specific endpoint tables."""
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meta = sql.MetaData()
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meta.bind = migrate_engine
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new_table = sql.Table('endpoint', meta, autoload=True)
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renames = {'endpoint_v3': new_table}
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service_table = sql.Table('service', meta, autoload=True)
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constraints = [{'table': new_table,
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'fk_column': 'service_id',
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'ref_column': service_table.c.id}]
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migration_helpers.rename_tables_with_constraints(renames, constraints,
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migrate_engine)
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sql.Table('service', meta, autoload=True)
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legacy_table = sql.Table(
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'endpoint_v2',
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meta,
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sql.Column('id', sql.String(64), primary_key=True),
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sql.Column('region', sql.String(255)),
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sql.Column('service_id',
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sql.String(64),
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sql.ForeignKey('service.id'),
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nullable=False),
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sql.Column('extra', sql.Text()))
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legacy_table.create(migrate_engine, checkfirst=True)
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