db: turn off autocommit

after testing using an assert for DML without a transaction,
we can now turn autocommit off.   enginefacade should be used
completely now

Change-Id: I2ee07c7e41ea43c2ab24a4a095550dd0b5fe47dd

manila/db/sqlalchemy/api.py

@@ -73,11 +73,10 @@ _DEFAULT_SQL_CONNECTION = 'sqlite://'
 db_options.set_defaults(cfg.CONF,
                         connection=_DEFAULT_SQL_CONNECTION)
 
+
 context_manager = enginefacade.transaction_context()
 
-# FIXME(stephenfin): we need to remove reliance on autocommit semantics ASAP
-# since it's not compatible with SQLAlchemy 2.0
-context_manager.configure(__autocommit=True)
+context_manager.configure()
 
 
 def get_engine():

manila/db/sqlalchemy/query.py

@@ -28,11 +28,10 @@ class Query(orm.Query):
         return super(Query, self).soft_delete(synchronize_session)
 
 
-def get_maker(engine, autocommit=True, expire_on_commit=False):
+def get_maker(engine, expire_on_commit=False):
     """Return a SQLAlchemy sessionmaker using the given engine."""
     return sqlalchemy.orm.sessionmaker(bind=engine,
                                        class_=orm.Session,
-                                       autocommit=autocommit,
                                        expire_on_commit=expire_on_commit,
                                        query_cls=Query)
 

manila/test.py

@@ -186,13 +186,6 @@ class WarningsFixture(fixtures.Fixture):
             category=sqla_exc.SADeprecationWarning,
         )
 
-        warnings.filterwarnings(
-            'ignore',
-            module='manila',
-            message='The current statement is being autocommitted ',
-            category=sqla_exc.SADeprecationWarning,
-        )
-
         warnings.filterwarnings(
             'ignore',
             module='manila',