Refactor warehouse part two.

src/engine/db/handlers/dbWarehouseHandler.java

@@ -112,7 +112,7 @@ public class dbWarehouseHandler extends dbHandlerBase {
                 int cityUID = rs.getInt("cityUID");
                 JSONObject jsonObject = (JSONObject) jsonParser.parse(rs.getString("template"));
                 City city = City.getCity(cityUID);
-                Warehouse warehouse = new Warehouse(jsonObject);
+                city.warehouse = new Warehouse(jsonObject);
             }
 
         } catch (Exception e) {