On May 30, 2008, at 11:20 AM, jonknee wrote: > On May 30, 10:38 am, David Zhou <[EMAIL PROTECTED]> wrote: >> You can use also use hasattr(). >> >> Something like >> >> if hasattr(person_obj, 'man'): >> #is man >> elif hassattr(person_obj, 'woman'): >> #is woman >> else: >> #is freakish mutated thing >> > > How would that work exactly? It's a reverse relation, so you need to > specify what exactly you want (e.g. the data from the Man or Woman > table). It can't automatically go out and get it. > > http://www.djangoproject.com/documentation/model-api/#inheritance-and-reverse-relations
Why wouldn't that work, unless I'm misunderstanding something? From the docs: >>> p = Place.objects.filter(name="Bob's Cafe") # If Bob's Cafe is a Restaurant object, this will give the child class: >>> p.restaurant However, if p in the above example was not a Restaurant (it had been created directly as a Place object or was the parent of some other class), referring to p.restaurant would give an error. I'm assuming he's already done: person_obj = get_object_or_404(Person, pk=person_id) I'm also assuming one will always create person objects through the Man or Woman classes. And even if he didn't, that should still trigger the third default else choice. --- David Zhou [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
