1 # Licensed under the Apache License, Version 2.0 (the "License"); you may
2 # not use this file except in compliance with the License. You may obtain
3 # a copy of the License at
5 # http://www.apache.org/licenses/LICENSE-2.0
7 # Unless required by applicable law or agreed to in writing, software
8 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
9 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
10 # License for the specific language governing permissions and limitations
13 import sqlalchemy as sql
15 _SP_TABLE_NAME = 'service_provider'
18 def _update_null_columns(migrate_engine, sp_table):
19 stmt = (sp_table.update().
20 where(sp_table.c.auth_url.is_(None)).
22 migrate_engine.execute(stmt)
24 stmt = (sp_table.update().
25 where(sp_table.c.sp_url.is_(None)).
27 migrate_engine.execute(stmt)
30 def upgrade(migrate_engine):
32 meta.bind = migrate_engine
33 sp_table = sql.Table(_SP_TABLE_NAME, meta, autoload=True)
34 # The columns are being changed to non-nullable. To prevent
35 # database errors when both are altered, all the existing
36 # null-records should be filled with not null values.
37 _update_null_columns(migrate_engine, sp_table)
39 sp_table.c.auth_url.alter(nullable=False)
40 sp_table.c.sp_url.alter(nullable=False)