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# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Author: Kiall Mac Innes <kiall@hpe.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from sqlalchemy import MetaData, Table
from migrate.changeset.constraint import ForeignKeyConstraint
meta = MetaData()
def upgrade(migrate_engine):
meta.bind = migrate_engine
domains_table = Table('domains', meta, autoload=True)
domainmetadata_table = Table('domainmetadata', meta, autoload=True)
records_table = Table('records', meta, autoload=True)
records_fk = ForeignKeyConstraint(
[records_table.c.domain_id],
[domains_table.c.id],
ondelete="CASCADE")
records_fk.create()
domainmetadata_fk = ForeignKeyConstraint(
[domainmetadata_table.c.domain_id],
[domains_table.c.id],
ondelete="CASCADE")
domainmetadata_fk.create()
def downgrade(migrate_engine):
meta.bind = migrate_engine
domains_table = Table('domains', meta, autoload=True)
domainmetadata_table = Table('domainmetadata', meta, autoload=True)
records_table = Table('records', meta, autoload=True)
records_fk = ForeignKeyConstraint(
[records_table.c.domain_id],
[domains_table.c.id],
ondelete="CASCADE")
records_fk.drop()
domainmetadata_fk = ForeignKeyConstraint(
[domainmetadata_table.c.domain_id],
[domains_table.c.id],
ondelete="CASCADE")
domainmetadata_fk.drop()
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