lookup del msg

Author: platipusica

jam/db/db.py

@@ -261,7 +261,10 @@ def check_lookup_refs(self, delta, connection, cursor):
                     copy.set_fields([field.field_name])
                     copy.open(expanded=False, limit=1, connection=connection)
                     if copy.rec_count:
-                        raise Exception(consts.language('cant_delete_used_record'))
+                        raise Exception(
+                                f"{consts.language('cant_delete_used_record')}\n"
+                                f"in field '{field.field_name}' ({item.item_name})"
+                        )
 
     def get_user(self, delta):
         user = None