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 [email protected]. To post to this group, send email to [email protected]. 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.
