neutron/neutron/db/migration/alembic_migrations/versions/liberty/contract/2e5352a0ad4d_add_missing_fo...

45 lines
1.3 KiB
Python

# Copyright 2015 Red Hat, Inc.
#
# 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 alembic import op
from sqlalchemy.engine import reflection
from neutron.db import migration
"""Add missing foreign keys
Revision ID: 2e5352a0ad4d
Revises: 2a16083502f3
Create Date: 2015-08-20 12:43:09.110427
"""
# revision identifiers, used by Alembic.
revision = '2e5352a0ad4d'
down_revision = '2a16083502f3'
TABLE_NAME = 'flavorserviceprofilebindings'
def upgrade():
inspector = reflection.Inspector.from_engine(op.get_bind())
fk_constraints = inspector.get_foreign_keys(TABLE_NAME)
for fk in fk_constraints:
fk['options']['ondelete'] = 'CASCADE'
migration.remove_foreign_keys(TABLE_NAME, fk_constraints)
migration.create_foreign_keys(TABLE_NAME, fk_constraints)