On Thu, 2006-07-06 at 02:55 +, Lorin Hochstein wrote:
> Malcolm Tredinnick wrote:
> > On Wed, 2006-07-05 at 21:38 +, Lorin Hochstein wrote:
> >
> > One of these (all hypotheses related to any topic on the list) is easy:
> >
> > Hypothesis.objects.filter(topics__in = topics)
> >
>
Malcolm Tredinnick wrote:
> On Wed, 2006-07-05 at 21:38 +, 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.
On 7/6/06, Lorin Hochstein <[EMAIL PROTECTED]> wrote:
I realize I can do this using Python sets on the id's, but is there away to do it more efficiently using the database API?At present - not really. Malcolm has pretty much covered the currently available options. However, I would point out that
Hi,
I had a question about the database API. I have two models, Hypothesis
and Topic, with a many-to-many relationship. Given a list of topics,
what I want to do is retrieve the union of related hypotheses (all
hypotheses that are associated with any topic in the list) and the
intersection of
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