82 lines
3.0 KiB
Python
82 lines
3.0 KiB
Python
# Copyright 2014 Rackspace
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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 oslo_log import log as logging
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from sqlalchemy import ForeignKey
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from sqlalchemy.schema import Column
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from sqlalchemy.schema import MetaData
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from trove.db.sqlalchemy.migrate_repo.schema import Boolean
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from trove.db.sqlalchemy.migrate_repo.schema import create_tables
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from trove.db.sqlalchemy.migrate_repo.schema import DateTime
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from trove.db.sqlalchemy.migrate_repo.schema import drop_tables
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from trove.db.sqlalchemy.migrate_repo.schema import String
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from trove.db.sqlalchemy.migrate_repo.schema import Table
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from trove.db.sqlalchemy import utils as db_utils
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logger = logging.getLogger('trove.db.sqlalchemy.migrate_repo.schema')
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meta = MetaData()
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configurations = Table(
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'configurations',
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meta,
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Column('id', String(36), primary_key=True, nullable=False),
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Column('name', String(64), nullable=False),
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Column('description', String(256)),
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Column('tenant_id', String(36), nullable=False),
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Column('datastore_version_id', String(36), nullable=False),
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Column('deleted', Boolean(), nullable=False, default=False),
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Column('deleted_at', DateTime()),
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)
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configuration_parameters = Table(
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'configuration_parameters',
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meta,
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Column('configuration_id', String(36), ForeignKey("configurations.id"),
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nullable=False, primary_key=True),
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Column('configuration_key', String(128), nullable=False, primary_key=True),
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Column('configuration_value', String(128)),
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Column('deleted', Boolean(), nullable=False, default=False),
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Column('deleted_at', DateTime()),
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)
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def upgrade(migrate_engine):
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meta.bind = migrate_engine
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create_tables([configurations])
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create_tables([configuration_parameters])
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instances = Table('instances', meta, autoload=True)
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instances.create_column(Column('configuration_id', String(36),
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ForeignKey("configurations.id")))
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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instances = Table('instances', meta, autoload=True)
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constraint_names = db_utils.get_foreign_key_constraint_names(
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engine=migrate_engine,
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table='instances',
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columns=['configuration_id'],
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ref_table='configurations',
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ref_columns=['id'])
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db_utils.drop_foreign_key_constraints(
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constraint_names=constraint_names,
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columns=[instances.c.configuration_id],
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ref_columns=[configurations.c.id])
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instances.drop_column('configuration_id')
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drop_tables([configuration_parameters, configurations])
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