def ancestor(self, class_keyword):
"""Find the first ancestor that matches the provided class_keyword
Arguments:
class_keyword[str]: A class keyword matching the type of class wanted
"""
request = PdmObject_pb2.PdmParentObjectRequest(
object=self._pb2_object, parent_keyword=class_keyword)
return PdmObject(self._pdm_object_stub.GetAncestorPdmObject(request),
self._channel, self._project)
def ancestor(self, class_definition):
"""Find the first ancestor that matches the provided class_keyword
Arguments:
class_definition[class]: A class definition matching the type of class wanted
"""
assert(inspect.isclass(class_definition))
class_keyword = class_definition.__name__
request = PdmObject_pb2.PdmParentObjectRequest(
object=self._pb2_object, parent_keyword=class_keyword)
try:
pb2_object = self._pdm_object_stub.GetAncestorPdmObject(request)
child_class_definition = class_from_keyword(pb2_object.class_keyword)
if child_class_definition is None:
child_class_definition = class_definition
pdm_object = child_class_definition(pb2_object=pb2_object, channel=self.channel())
return pdm_object
except grpc.RpcError as e:
if e.code() == grpc.StatusCode.NOT_FOUND:
return None
raise e