fix(): Adds the pointer to the session before proceeding

shortenit/main.py

@@ -65,9 +65,9 @@ def shorten_it(config: dict, session: Session, data: str, ttl: int):
             _link = Link(data=data, pointers=[])
 
         _pointer = Pointer(data=identifier, link_id=_link.id, link=_link, ttl=ttl)
+        session.add(_pointer)
         _link.pointers.append(_pointer)
         session.add(_link)
-        session.add(_pointer)
         session.commit()
         return _pointer.data
     return None