partial implementation of search by alias

Should not crash if more than one surface

hub/imports/geometry/geojson.py

@@ -213,8 +213,6 @@ class Geojson:
         polygon = Polygon(coordinates)
         polygon.area = igh.ground_area(coordinates)
         surfaces[-1] = Surface(polygon, polygon)
-    if len(surfaces) > 1:
-      raise ValueError('too many surfaces!!!!')
     building = Building(f'{building_name}', surfaces, year_of_construction, function)
     for alias in building_aliases:
       building.add_alias(alias)

hub/persistence/repositories/city_object.py

@@ -152,8 +152,14 @@ class CityObject(Repository):
       buildings = session.execute(select(Model).where(
         Model.city_id.in_(ids), Model.name.in_(names)
       ))
+      if len(buildings) == 0:
+        # search by aliases instead
+        buildings = session.execute(select(Model).where(
+          Model.city_id.in_(ids), Model.name.in_(names)
+        ))
       results = [r[0] for r in buildings]
-      print(ids, buildings)
+
+      print(ids, [r.name for r in results])
     return None
 
   def get_by_name_or_alias_and_city(self, name, city_id) -> Union[Model, None]: