如果网址中没有pk，则Django DetailView显示最后

Question

With a class based DetailView is there a way to say "if no pk is specified" when the url is called, just use MyModel.object.last() as object reference?

url(r'^(?:(?P<pk>\d+)/)?detail/$', views.MyDetailView.as_view()),

class MyDetailView(DetailView):
    model = MyModel
    if self.kwargs['pk'] == False:
       self.object = MyModel.object.last()

I'm running Django 1.11

Answer 1

You can override the get_object method. Note you should be checking whether pk is set in self.kwargs , not whether it is equal to False .

def get_object(self):
    if 'pk' not in self.kwargs:
        return MyModel.objects.last()
    return super(MyDetailView, self).get_object()