Fix nacitani detailu udalosti

src/database/query_builder.py

@@ -13,6 +13,7 @@ class QueryBuilder:
             created_by_id: Optional[int] = None,
             order_by: Optional[list] = None,
             only_public: Optional[bool] = False,
+            url_slug: Optional[str] = None,
             include_deleted: bool = False
     ):
         if not extra_select:
@@ -33,6 +34,9 @@ class QueryBuilder:
                 self.model.created_by_id == created_by_id
             ))
 
+        if url_slug is not None and hasattr(self.model, 'url_slug'):
+            query = query.filter(self.model.url_slug == url_slug)
+
         if order_by:
             query = query.order_by(*order_by)
         elif hasattr(self.model, "name"):