On Thu, 2006-07-06 at 02:55 +0000, Lorin Hochstein wrote:
> Malcolm Tredinnick wrote:
> > On Wed, 2006-07-05 at 21:38 +0000, Lorin Hochstein wrote:
> >
> > One of these (all hypotheses related to any topic on the list) is easy:
> >
> > Hypothesis.objects.filter(topics__in = topics)
> >
>
> Ah, nice and simple... Somehow I manage to miss that in the docs.
> Initially, this wasn't working on my system, but a "svn up" fixed the
> problem. :)
Oh, sorry.. I should have pointed that out; it is using a slightly new
feature. Russell Keith-Magee added the ability to do queries over actual
objects like this only last week. Previously you had to construct a list
of the id values and pass that in. So on older versions (if you need to
work on them)
topics_id = [obj.id for obj in topics]
hypotheses = Hypothesis.objects.filter(topics_in = topics_id)
would work also (in fact, it still works).
Regards,
Malcolm
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