You can have a field called "total_votes" in the Book model. Then you can override the save() method in the Vote class, which calculates the total votes on a particular Book and updates the "total_votes" in the book.
Also, why not use https://github.com/brosner/django-voting Django-voting app? It is pretty slick and gives you all those manager methods right away. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.