On Thu, Jul 23, 2009 at 2:57 AM, Steven Stelmach<sstelm...@gmail.com> wrote: > > Hi all, > > I'm working with models (for a newspaper site) similar to this: > > - Abstract class Content with child class Article. > - Each Content object is related one-to-one with a ContentGeneric, > which has a published_status field. > - Articles have related_content, which is a M2M field with > ContentGeneric. > > I've implemented a soft delete on ContentGeneric by overriding the > get_queryset method on my manager to only fetch content with active > published_statuses, but when I ask an article for its related_content > via the ORM, references to soft deleted content are obviously still > valid and are returned. > > My question is basically: is there a way to make a default m2m manager > that fetches only active content? I'd like to be able to do something > like Articles.related_content.all() and have it return only active > related_content content instances.
... and just after I posted, my brain kicked into gear and thought of the obvious solution. Instead of trying to filter Article.related_content.all(), modify the default manager so that you can invoke Articles.related_content.active(). To do this, define a custom default manager for Content that exposes an 'active()' modifier. Rather than affecting all queries (by overriding get_query_set()), you add an 'active()' operator that returns a filtered query set. With this approach, both Articles.related_content.active() and ContentGeneric.objects.active() will both work. Yours Russ Magee %-) --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
