X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/d816e45e483da784b5e75ee8ca3058edf7884c7b..a4750ca6ad789432fffd60266a38b8586994c3d6:/apps/catalogue/models/book.py

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 71547755..89c6267c 100755
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -271,7 +271,8 @@ class Book(models.Model):
     def get_on_track(self):
         if self.published:
             return -1
-        stages = [ch.stage.ordering for ch in self if ch.stage is not None]
+        stages = [ch.stage.ordering if ch.stage is not None else 0
+                    for ch in self]
         if not len(stages):
             return 0
         return min(stages)