99 lines
3.7 KiB
Python
99 lines
3.7 KiB
Python
# Copyright 2014 eBay Software 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 ForeignKey
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from sqlalchemy.schema import Column
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from sqlalchemy.schema import Index
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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 Integer
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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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from trove.openstack.common import log as logging
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logger = logging.getLogger('trove.db.sqlalchemy.migrate_repo.schema')
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meta = MetaData()
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clusters = Table(
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'clusters',
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meta,
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Column('id', String(36), primary_key=True, nullable=False),
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Column('created', DateTime(), nullable=False),
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Column('updated', DateTime(), nullable=False),
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Column('name', String(255), nullable=False),
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Column('task_id', Integer(), nullable=False),
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Column('tenant_id', String(36), nullable=False),
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Column("datastore_version_id", String(36),
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ForeignKey('datastore_versions.id'), nullable=False),
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Column('deleted', Boolean()),
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Column('deleted_at', DateTime()),
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Index("clusters_tenant_id", "tenant_id"),
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Index("clusters_deleted", "deleted"),)
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def upgrade(migrate_engine):
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meta.bind = migrate_engine
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Table('datastores', meta, autoload=True)
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Table('datastore_versions', meta, autoload=True)
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instances = Table('instances', meta, autoload=True)
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create_tables([clusters])
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instances.create_column(Column('cluster_id', String(36),
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ForeignKey("clusters.id")))
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instances.create_column(Column('shard_id', String(36)))
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instances.create_column(Column('type', String(64)))
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cluster_id_idx = Index("instances_cluster_id", instances.c.cluster_id)
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cluster_id_idx.create()
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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datastore_versions = Table('datastore_versions', 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='clusters',
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columns=['datastore_version_id'],
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ref_table='datastore_versions',
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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=[clusters.c.datastore_version_id],
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ref_columns=[datastore_versions.c.id])
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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=['cluster_id'],
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ref_table='clusters',
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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.cluster_id],
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ref_columns=[clusters.c.id])
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instances.drop_column('cluster_id')
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instances.drop_column('shard_id')
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instances.drop_column('type')
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drop_tables([clusters])
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