Great. I go to pick up extra() to use.
Thanks Tim.
On Jul 24, 2:33 pm, Tim Chase <django.us...@tim.thechases.com> wrote:
> > Such a transformation is fine. I found that my Django has no F().
> > Checking the Django doc I saw that this new feature is "New in Django
> > Development version".
>
> > So I have to wait for the new version? Are there any other ways to
> > create such a filter?
> >> col1_value >= col2_value * 2
>
> >> something like col1__gte=F('col2') * 2
>
> You can always fall back to the .extra() method[1]:
>
> results = MyFoo.objects.extra(where=[
> "col1_value >= col2_value * 2",
> ])
>
> which is how it was done back in the day before ya'll young
> whippersnappers had such fancy shenanigans as F() objects...and
> to get data, we walked up hill, in the snow. Both ways. ;-)
>
> -tim
>
> [1]http://docs.djangoproject.com/en/dev/ref/models/querysets/#extra-sele...
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