Limit the queryset of entries displayed for a django admin Inline

Question

In django admin, using django 1.2, i\'m trying to add a InlineModelAdmin to apply a comment on save when a change is made to an entry. (An entry is expected to have a \"Chan

Answer 1

I am supposing you are using a

models.ForeignKey(EntryAdmin)

in your ChangeComment model. but if you want only one comment for each EntryAdmin, your should use instead a:

models.OneToOneField(EntryAdmin)

And you won't need your NoCommentsInlineFormset nor your inline class. That's what I would do.

EDITED

Ok then if you want to keep a history of comments, you could override the queryset in the NoCommentsInlineFormset as:

def __init__(self, *args, **kwargs):
    super(NoCommentsInlineFormset, self).__init__(*args, **kwargs)
    self.queryset = ChangeComment.objects.order_by('-created_at')[:1]

This should work.