diff options
Diffstat (limited to 'keystone-moon/keystone/common/sql/migrate_repo/versions/092_make_implied_roles_fks_cascaded.py')
-rw-r--r-- | keystone-moon/keystone/common/sql/migrate_repo/versions/092_make_implied_roles_fks_cascaded.py | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/keystone-moon/keystone/common/sql/migrate_repo/versions/092_make_implied_roles_fks_cascaded.py b/keystone-moon/keystone/common/sql/migrate_repo/versions/092_make_implied_roles_fks_cascaded.py new file mode 100644 index 00000000..5e841899 --- /dev/null +++ b/keystone-moon/keystone/common/sql/migrate_repo/versions/092_make_implied_roles_fks_cascaded.py @@ -0,0 +1,46 @@ +# 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 migrate +import sqlalchemy as sql + + +ROLE_TABLE = 'role' +IMPLIED_ROLE_TABLE = 'implied_role' + + +def upgrade(migrate_engine): + meta = sql.MetaData() + meta.bind = migrate_engine + + role = sql.Table(ROLE_TABLE, meta, autoload=True) + implied_role = sql.Table(IMPLIED_ROLE_TABLE, meta, autoload=True) + + fkeys = [ + {'columns': [implied_role.c.prior_role_id], + 'references': [role.c.id]}, + {'columns': [implied_role.c.implied_role_id], + 'references': [role.c.id]}, + ] + + # NOTE(stevemar): We need to divide these into two separate loops otherwise + # they may clobber each other and only end up with one foreign key. + for fkey in fkeys: + migrate.ForeignKeyConstraint(columns=fkey['columns'], + refcolumns=fkey['references'], + name=fkey.get('name')).drop() + for fkey in fkeys: + migrate.ForeignKeyConstraint(columns=fkey['columns'], + refcolumns=fkey['references'], + name=fkey.get('name'), + ondelete="CASCADE").create() |