Adding it as a regular property to your Categories class should work:
# inside Categoria
@property
def total(self):
return Plano.object.filter(categoria=self).count()
You may also want to use backward relationship links to simplify the
code and make it more robust, but I don't know how your models are
setup. If it's just an FK without an explicit related_name, should be
something along the lines of:
@property
def total(self):
return self.plano_set.count()
On 2015-03-23, at 17:47 , Fellipe Henrique <felli...@gmail.com> wrote:
> Hello,
>
> I have these view:
>
> def planos_view(request, cat_id=0):
> if cat_id == '0':
> categorias = Categoria.objects.filter(publicado=True)
> else:
> categorias =
> Categoria.objects.filter(publicado=True).filter(id=cat_id)
>
> for c in categorias:
> c.total = Plano.objects.filter(categoria=c).count()
>
> return render_to_response('planos.html', locals(),
> context_instance=RequestContext(request))
> I want to add the "total" field in my "categories" model.. What's the best
> approach for these, because these code above don't work...
>
> Thanks agains
>
> T.·.F.·.A.·. S+F
> Fellipe Henrique P. Soares
>
> e-mail: > echo "lkrrovknFmsgor4ius" | perl -pe \ 's/(.)/chr(ord($1)-2*3)/ge'
> Blog: http://fhbash.wordpress.com/
> GitHub: https://github.com/fellipeh
> Twitter: @fh_bash
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to django-users+unsubscr...@googlegroups.com.
> To post to this group, send email to django-users@googlegroups.com.
> Visit this group at http://groups.google.com/group/django-users.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-users/CAF1jwZGvrVY2PG8YCgR3r4LS8URaR6-V2rP_EW3j9RJMpkVr3A%40mail.gmail.com.
> For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-users+unsubscr...@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/9E3FEBC0-AC39-4051-A1EB-EC7D1A54C1BA%40masklinn.net.
For more options, visit https://groups.google.com/d/optout.
