Re: Reverse and kwargs...

- vs _ ?

On Oct 29, 2012, at 4:38 PM, Lachlan Musicman wrote:

> On Tue, Oct 30, 2012 at 11:14 AM, Nikolas Stevenson-Molnar
> <nik.molnar@consbio.org> wrote:
>> You're close. Your reverse calls should be:
>>
>> return redirect(reverse('student-reports', kwargs={'year': year}))
>
> Thanks - that makes sense. I might have even done that previously, but
> I am still getting errors - I must have mistakenly attributed the
> error.
>
> New error is:
> Exception Type: NoReverseMatch
> Exception Value: Reverse for 'student-reports' with arguments '()' and
> keyword arguments '{'year': 2013}' not found.
>
> but my urls.py includes these lines:
> url(r'^students/reports/$', student_reports, name='student_reports'),
> url(r'^students/reports/(?P<year>\d{4})/$', student_reports,
> name='student_reports'),
>
>
> and the view:
> def student_reports(request, year=None):
> year = year or datetime.date.today().year
> ...
>
> What am I doing wrong now?
>
> Cheers
> L.
>
>>
>>
>> _Nik
>>
>> On 10/29/2012 4:11 PM, Lachlan Musicman wrote:
>>> Hi,
>>>
>>> I'm struggling to get the syntax right for a url reverse function.
>>>
>>> I have a form that asks for a Model type (ChoiceField with strings)
>>> and a year (CharField).
>>>
>>> The logic then if/elifs the ChoiceField and then redirects to the
>>> appropriate report page (for statistics on the Model type), with an
>>> optional year. I've got the urls and the views working, but passing
>>> the year arg to the view via the reverse function is not obvious to
>>> me, and nothing I've tried seems to work?
>>>
>>> example code:
>>> forms.py
>>> class ReportRequestForm(forms.Form):
>>> DATA_TYPES =
>>> ((1,'Students'),(2,'Enrolments'),(3,'Applicants'),(4,'Staff'),(5,'Results'))
>>> year = forms.CharField(max_length=4)
>>> data_type = forms.ChoiceField(choices=DATA_TYPES)
>>>
>>> views.py
>>> def ReportRequestForm(self):
>>> ...
>>> if form.is_valid():
>>> year = int(form.cleaned_data['year'])
>>> data_type = form.cleaned_data['data_type']
>>> if data_type == '1':
>>> return redirect(reverse('student-reports',{year=year,}))
>>> elif data_type == '2':
>>> return redirect(reverse('applicant-reports',{year=year,}))
>>> elif data_type == '3':
>>> return redirect(reverse('enrolment-reports',{year=year,}))
>>> elif data_type == '4':
>>> return redirect(reverse('staff-reports',{year=year,}))
>>>
>>>
>>> What is the correct syntax?
>>>
>>> Cheers
>>> L.
>>>
>>
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>
>
>
> --
> ...we look at the present day through a rear-view mirror. This is
> something Marshall McLuhan said back in the Sixties, when the world
> was in the grip of authentic-seeming future narratives. He said, "We
> look at the present through a rear-view mirror. We march backwards
> into the future."
>
> http://www.warrenellis.com/?p=14314
>
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--
-- Christophe Pettus
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