Re: search with a optional value

thanks

On Aug 25, 1:13 pm, Jani Tiainen <rede...@gmail.com> wrote:
> On 08/16/2011 03:20 PM, john wrote:
>
> > hi,
> > i have a form with few fields as optional,i.e can be left blank,
> > i want to search my db for values i receive from this form, how should
> > i go on about writing my filters when some of values can be " ".
> > any reference is kindly appreciated
>
> I had to do that for a good while back and I used following approach:
>
> # Add "or contains" query for every nonempty value in form data.
> q = Q()
> for k,v in form.cleaned_data.items():
>      if v:
>          q |= Q(**{k + '__contains' : v})
>
> # Get resultset
> r = MyModel.objects.filter(q);
>
> --
>
> Jani Tiainen

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