Style fix
[wolnelektury.git] / src / catalogue / models / book.py
index 6b9fd72..b624abc 100644 (file)
@@ -139,6 +139,8 @@ class Book(models.Model):
 
     SORT_KEY_SEP = '$'
 
 
     SORT_KEY_SEP = '$'
 
+    is_book = True
+
     class AlreadyExists(Exception):
         pass
 
     class AlreadyExists(Exception):
         pass