> This worked on on Django 1.2.5:
> Parent.objects.exclude(child__isnull=True)
> Does it work for you?
> Excerpts from robin's message of Tue May 31 05:53:26 -0300 2011:
> > Example code:
> > class Parent(models.Model):
> > name = models.CharField(max_length='20',blank=True)
> > class Child(Parent):
> > pass
> > I want to get the result of Child.objects.all() but I DO NOT want to
> > use Child.
> > I want to use Parent instead, which I tried to do with:
> > Parent.objects.filter(child__isnull=False)
> > Which doesn't work and gives the result of Product.objects.all()
> > instead.
> > However If I do the following, it WORKS:
> > Parent.objects.filter(child__name__isnull=False)
> > Another way, if I insist on using
> > Parent.objects.filter(child__isnull=False), is to change the Child
> > model to the following:
> > class Child(models.Model):
> > parent = models.OneToOneField(Parent)
> > Then Parent.objects.filter(child__isnull=False) would WORK
> > The problem with the 2 solutions above is that filtering with
> > child__name__isnull looks hackish, and I don't want to change my Child
> > model to use OneToOneField.
> > So is there a better way?
> > Thanks,
> > Robin
> --
> Matías Aguirre <matiasagui...@gmail.com>
