Django getting variable from URL into view

Question

Is it possible to get a variable in a URL to pass to a view. For example. I have a location table with many locations. If I click a location it goes to a details page of that location. The location ID gets added to the URL. I then have a link to another page/view but want to reference the location id in the next view.

urls.py:

url(r'^locations/get/(?P<location_id>\d+)/$', 'assessments.views.location'),
url(r'^locations/get/(?P<location_id>\d+)/next_page/$', 'assessments.views.next_page'),

view.py:

def location(request, location_id=1):
    return render_to_response('dashboard/location.html', {'location': Location.objects.get(id=location_id) })

def next_page(request):
    loc = Location.objects.get(id='id of that location')

Which location do you need in next_page() - location_id or some other one? — Tomasz Zieliński
– Tomasz Zieliński, Commented Sep 16, 2014 at 20:48
I need the location of the location i was on before going to the next page. Not sure if that makes any sense. — Chris Meek
– Chris Meek, Commented Sep 16, 2014 at 20:52
next_page takes exactly the same location_id argument as the original location function does, so you can use it in exactly the same way. — Daniel Roseman
– Daniel Roseman, Commented Sep 16, 2014 at 20:56

C.B. · Accepted Answer · 2014-09-16 20:56:35Z

1

Simply access it in the view function with its name

def next_page(request,location_id):
    loc = Location.objects.get(id=location_id)

answered Sep 16, 2014 at 20:56

C.B.

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Tomasz Zieliński · Accepted Answer · 2014-09-16 20:57:28Z

1

OK, I'm still not sure what exactly do you mean but I think one of the following two snippets should solve your problem:

The URL contains location_id so just use it in next_page():

def location(request, location_id):
    return render_to_response('dashboard/location.html', {'location': Location.objects.get(id=location_id) })

def next_page(request, location_id):
    loc = Location.objects.get(id=location_id)

Pass location_id in request.session:

def location(request, location_id):
    request.session['selected_location'] = location_id
    return render_to_response('dashboard/location.html', {'location': Location.objects.get(id=location_id) })

def next_page(request):
    try: 
        selected_location = request.session['selected_location']
    except KeyError:
        # Not sure if 404 is the best status code here but you get the idea
        raise Http404
    loc = Location.objects.get(id=selected_location)

answered Sep 16, 2014 at 20:57

Tomasz Zieliński

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1 Comment

Chris Meek Over a year ago

Some how i convinced myself that it was so much more complicated. Thanks

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