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author | 2016-06-09 09:11:50 +0200 | |
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committer | 2016-06-09 09:11:50 +0200 | |
commit | 2e7b4f2027a1147ca28301e4f88adf8274b39a1f (patch) | |
tree | 8b8d94001ebe6cc34106cf813b538911a8d66d9a /keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py | |
parent | a33bdcb627102a01244630a54cb4b5066b385a6a (diff) |
Update Keystone core to Mitaka.
Change-Id: Ia10d6add16f4a9d25d1f42d420661c46332e69db
Diffstat (limited to 'keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py')
-rw-r--r-- | keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py b/keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py new file mode 100644 index 00000000..0156de21 --- /dev/null +++ b/keystone-moon/keystone/common/sql/migrate_repo/versions/096_drop_role_name_constraint.py @@ -0,0 +1,50 @@ +# 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_NAME = 'role' +_ROLE_NAME_COLUMN_NAME = 'name' + + +def upgrade(migrate_engine): + meta = sql.MetaData() + meta.bind = migrate_engine + + role_table = sql.Table(_ROLE_TABLE_NAME, meta, autoload=True) + + # NOTE(morganfainberg): the `role_name` unique constraint is not + # guaranteed to be named 'ixu_role_name', so we need to search for the + # correct constraint that only affects role_table.c.name and drop + # that constraint. + # + # This is an idempotent change that reflects the fix to migration + # 88 if the role_name unique constraint was not named consistently and + # someone manually fixed the migrations / db without dropping the + # old constraint. + to_drop = None + if migrate_engine.name == 'mysql': + for c in role_table.indexes: + if (c.unique and len(c.columns) == 1 and + _ROLE_NAME_COLUMN_NAME in c.columns): + to_drop = c + break + else: + for c in role_table.constraints: + if len(c.columns) == 1 and _ROLE_NAME_COLUMN_NAME in c.columns: + to_drop = c + break + + if to_drop is not None: + migrate.UniqueConstraint(role_table.c.name, + name=to_drop.name).drop() |