Question

I am currently making views called by slugs on django but I seem to have some troubles on that.

Suppose I have database entries like de ce ceiling (slug fields).
Now when I call, myapp/ce or myapp/de. It returns the view I want. But when I call myapp/ceiling, it returns 404.

No sculpture found matching the query

It catches the url though.

The problem occurs when I use capital letter on the name field. The other fields hold lowercase.

I failed to understand this behavior.

My code is as follows:

urls.py

urlpatterns = patterns('sculptures.views',
            (r'^$', SculptureListView.as_view()),
            (r'^(?P<slug>[\w-]+)/$', SculptureDetailView.as_view()),
        )

views.py

class SculptureDetailView(DetailView):
    context_object_name = 'sculpture'
    def get_queryset(self):
        sculpture_slug = get_object_or_404(Sculpture, slug__iexact=self.kwargs['slug'])
        return Sculpture.objects.filter(slug=sculpture_slug)

Answer 1

Looking at your code:

def get_queryset(self):
    sculpture_slug = get_object_or_404(Sculpture, slug__iexact=self.kwargs['slug'])

Here you’re fetching the Sculpture object that matches the captured slug.

    return Sculpture.objects.filter(slug=sculpture_slug)

And then you get the Sculpture object whose slug is another Sculpture object. I wonder how this even works in some cases 🙂

Since you have a DetailView, you can directly use get_object():

class SculptureDetailView(DetailView):
    def get_object(self):
        return get_object_or_404(Sculpture, slug__iexact=self.kwargs['slug'])