# vim: tabstop=4 shiftwidth=4 softtabstop=4

#    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.

import sqlalchemy


def upgrade(migrate_engine):
    meta = sqlalchemy.MetaData(bind=migrate_engine)
    software_deployment = sqlalchemy.Table(
        'software_deployment', meta, autoload=True)
    software_deployment.c.signal_id.drop()


def downgrade(migrate_engine):
    meta = sqlalchemy.MetaData(bind=migrate_engine)
    software_deployment = sqlalchemy.Table(
        'software_deployment', meta, autoload=True)
    signal_id = sqlalchemy.Column('signal_id', sqlalchemy.String(1024))
    signal_id.create(software_deployment)
