persistence performance improvements

hub/persistence/db_control.py

@@ -75,6 +75,7 @@ class DBControl:
     :
     """
     cities = self._city.get_by_user_id_application_id_and_scenario(user_id, application_id, scenario)
+    c = [c[0].id for c in cities]
     for city in cities:
       result = self.building_info(name, city[0].id)
       if result is not None:
@@ -90,6 +91,15 @@ class DBControl:
     """
     return self._city_object.get_by_name_or_alias_and_city(name, city_id)
 
+  def building_info_in_cities(self, name, cities) -> CityObject:
+    """
+    Retrieve the building info from the database
+    :param name: Building name
+    :param cities: [City ID]
+    :return: CityObject
+    """
+    return self._city_object.get_by_name_or_alias_in_cities(name, cities)
+
   def buildings_info(self, request_values, city_id) -> [CityObject]:
     """
     Retrieve the buildings info from the database