I am using proxy models (Student, Teacher, Parent) from a base class Person.
I also have a class called BoardMember which uses the content type framework. In Boardmember I declared a GenericForeignKey(content_type, object_id, for_concrete_model=False). In my proxy model (Teacher) I declared a generic relation board = GenericRelation(Boardmember) . In my admin I have a model called Board and BoardMember is a TabularInline of Board. So, whenever I add a new Teacher as a Boardmember, the content_type_id being saved is the one of Teacher. This is the normal behavior, since I set for_concrete_model to False so it can reference Proxy models. So everything great. The problem is when I am trying to make a reverse relationship. When I do the following the relationship doesnt work. >>>Teacher.objects.filter(board__isnull=True) [] This instruction should return all the Teacher objects who are related as a BoardMember. Now if I do the following changes I can get it to work. - First I remove for_concrete_model = False from my GenericForeignKey. This will default it to true. - Now whenever I associate a Teacher as a BoardMember in my admin, the content_type_id being saved is the one of Person, the base class. Now I can do the following: >>>Teacher.objects.filter(board__isnull=True) [<Teacher: Fermin> <Teacher:Mr. John>] So now it does work, funny things is that the GenericRelation is set on Teacher and not Person. The content type saved was the one of Person and yet I can use the GenericRelation from Teacher object. This is really weird behavior. Can someone explain. I get the feeling very often that I have to be hacking solutions in Django Framework when things should be straight forward solutions. Thanks a lot! -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/1482300c-0c59-4974-9b23-8357f769bd5c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
