Have you tried b.haveone.all()?

On Sat, Jun 2, 2012 at 12:36 AM, Thomas Lockhart <[email protected]>wrote:

> I've got two models with one having a many-to-many relationship with the
> other:
>
> class A(models.Model):
>  name = models.CharField("name")
>
> class B(models.Model):
>  haveone = models.ManyToManyField(A)
>
> What is the idiom for getting all instances of A which are referenced in
> B? I found this works:
>
> A.objects.annotate(n=models.**Count('b')).filter(n__gt=0)
>
> But istm that there is probably a more concise and straightforward way to
> accomplish this (and the solution is probably obvious but it is escaping
> me). tia
>
>                  - Tom
>
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