On Sat, May 16, 2009 at 5:28 PM, ringemup <[email protected]> wrote:
> > Contrib.comments references related object primary keys instead of the > objects themselves, so is there any easy way to filter comments on a > property of the related model? For instance, if I have a blog and > want to retrieve all comments for entries in Category X, is that > possible through the Django ORM? > > Thanks! > > > No, at least not directly, but this is because there's no way to do that at the backend level. Generic relations (which is how comments are connected with objects) work by storing a primary key and a content type, and those aren't really relational database concepts, however you can do something like this: Comment.objects.filter(content_type=ContentType.objects.get_for_model(Entry), object_pk__in=Entry.objects.filter(category="some category")). Alex -- "I disapprove of what you say, but I will defend to the death your right to say it." --Voltaire "The people's good is the highest law."--Cicero --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected] 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 -~----------~----~----~----~------~----~------~--~---
