The question about aggregates still stands -- however, if anybody is wondering
about finding all childless parents, I figured a way:
On Monday 03 August 2009 17:45:18 Shai Berger wrote:
>
> class Team(models.Model):
> name = models.CharField(max_length=100)
>
> class Player(moedls.Model):
> name = models.CharField(max_length=100)
> team = models.ForeignKey(Team)
>
> Now, I want to perform some operation on all the empty teams -- so I want
> to do something like
>
> Team.objects.annotate(num_players=Count('player_set')).filter(num_players__
>eq=0)
>
team_players = Player.objects.all().values('team').query
Team.objects.exclude(pk__in=team_players)....
Have fun,
Shai.
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