def _initialize(self):
# Manages a RDB engine and a metadata instance for this repository.
# Both are global objects that should only be created once per process
# (for each RDB repository), hence we use a global object manager.
if not is_engine_initialized(self.name):
engine = self.__make_engine()
set_engine(self.name, engine)
# Bind the engine to the session factory and the metadata.
self.session_factory.configure(bind=engine)
else:
engine = get_engine(self.name)
if not is_metadata_initialized(self.name):
md_fac = self._config["metadata_factory"]
if self._config.get("messaging_enable", False):
# Wrap the metadata callback to also call the mapping
# function for system entities.
reset_on_start = self._config.get("messaging_reset_on_start", False)
def wrapper(engine, reset_on_start=reset_on_start):
metadata = md_fac(engine)
map_system_entities(engine, metadata, reset_on_start)
return metadata
metadata = wrapper(engine)
else:
metadata = md_fac(engine)
set_metadata(self.name, metadata)
else:
metadata = get_metadata(self.name)
metadata.bind = engine
def _initialize(self):
# Manages a RDB engine and a metadata instance for this repository.
# Both are global objects that should only be created once per process
# (for each RDB repository), hence we use a global object manager.
if not is_engine_initialized(self.name):
engine = self.__make_engine()
set_engine(self.name, engine)
# Bind the engine to the session factory and the metadata.
self.session_factory.configure(bind=engine)
else:
engine = get_engine(self.name)
if not is_metadata_initialized(self.name):
md_fac = self._config['metadata_factory']
if self._config.get('messaging_enable', False):
# Wrap the metadata callback to also call the mapping
# function for system entities.
reset_on_start = \
self._config.get('messaging_reset_on_start', False)
def wrapper(engine, reset_on_start=reset_on_start):
metadata = md_fac(engine)
map_system_entities(engine, metadata, reset_on_start)
return metadata
metadata = wrapper(engine)
else:
metadata = md_fac(engine)
set_metadata(self.name, metadata)
else:
metadata = get_metadata(self.name)
metadata.bind = engine
def test_rdb_engine_manager(self):
key = 'test'
self.assert_false(is_engine_initialized(key))
eng = create_engine('sqlite://')
set_engine(key, eng)
self.assert_raises(ValueError, set_engine, key, eng)
self.assert_true(is_engine_initialized(key))
self.assert_true(get_engine(key) is eng)
reset_engines()
self.assert_false(is_engine_initialized(key))
def test_rdb_engine_manager(self):
key = 'test'
self.assert_false(is_engine_initialized(key))
eng = create_engine('sqlite://')
set_engine(key, eng)
self.assert_raises(ValueError, set_engine, key, eng)
self.assert_true(is_engine_initialized(key))
self.assert_true(get_engine(key) is eng)
reset_engines()
self.assert_false(is_engine_initialized(key))
def _initialize(self):
if not is_engine_initialized(self.name):
engine = self.__make_engine()
set_engine(self.name, engine)
else:
engine = get_engine(self.name)
db_name = self._config['db_name']
self.__db = operator.getitem(engine, db_name)
if db_name == 'test':
# Reset the test database.
for coll_name in \
self.__db.collection_names(include_system_collections=False):
self.__db.drop_collection(coll_name)
# Set up the class registry.
for rc in self.registered_resources:
ent_cls = get_entity_class(rc)
if not MongoClassRegistry.is_registered(ent_cls):
MongoClassRegistry.register(ent_cls, self.__db)