thanku very much.....
On May 9, 11:02 pm, Jani Tiainen <rede...@gmail.com> wrote:
> On Mon, 2011-05-09 at 06:15 -0700, pankaj sharma wrote:
> > i have 4 branches in a college..
> > some college have three some have 4 and so on....
> > so i want to provide a search system to the user that they can see the
> > list of all the colleges which are having some branch say branch2 may
> > be he can select branch 3 and 4 and 1 also
> > so i am taking a query from the user for the branch so that i can
> > filter all the colleges having that branch.....
>
> > no i did this ..
> > i took a query say B {and the calue of B may be branch 1, branch 2,
> > 3,&4 as i have given a selectbox to user to select any branch}
> > now in filter tag i did this
>
> > college_list = College.objects.filter(B=True)
>
> > but it is not working... so please tell me
>
> You have to construct your HTML to be something like this:
>
> <select name="branch">
> <option value="branch1">Branch 1</option>
> <option value="branch2">Branch 2</option>
> <option value="branch3">Branch 3</option>
> <option value="branch4">Branch 4</option>
> </select>
>
> And in code:
> # Retrieve branch column name:
> branch = form.cleaned_data['branch']
>
> # Build kwargs dictionary.
> # See python docs about keyword argument expansion
> branch_kwargs = { branch : True }
>
> # Create Q object (not necessary, see below)
> branch_q = Q(**branch_kwargs)
>
> # Filter
> college_list = College.objects.filter(branch_q)
>
> note that branch_q construction is not necessary, you can do it
> directly:
>
> college_list = College.objects.filter(**branch_kwargs)
>
> --
>
> Jani Tiainen
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