Bug correction in persistence

hub/persistence/db_control.py

@@ -122,10 +122,9 @@ class DBControl:
         )
         if result_sets is None:
           continue
+        results[scenario_name] = []
         for result_set in result_sets:
           city_id = result_set[0].id
-
-          results[scenario_name] = []
           for building_name in scenario[scenario_name]:
             _building = self._city_object.get_by_name_or_alias_and_city(building_name, city_id)
             if _building is None:

hub/persistence/repositories/city.py

@@ -136,4 +136,3 @@ class City(Repository):
     except SQLAlchemyError as err:
       logging.error('Error while fetching city by name %s', err)
       raise SQLAlchemyError from err
-