updateOrCreateFromFields is made to call updateOrCreateFromKeyName. updateOrCreateFromFields called self._model.get_or_insert which only creates new entities but doesn't update the properties if the entity already exists. So updateOrCreateFromFields is now made to call updateOrCreateFromKeyName which actually updates the entity properties if entity already exists. Reviewed by: Lennard de Rijk

Added ancestors property to getQueryForFields for queries with ancestor filter. Reviewed by: Lennard de Rijk

Completed the proper filter for the GradingProjectSurvey results view. Also set the access check to checkIsUser.