python 没有PK或Slug的Django Generic DetailView

Posted 2021-05-09

# For the most part this is fine as you’ll usually provide an identifier in the URL. 
# But what if you need to pull the identifier from someplace else such as the session?

# To accomplish this, simply override the get_object method:


class UserView(DetailView):

    template_name = 'template.html'
    #model = User
    #context_object_name = 'foo'

    def get_object(self):
        return get_object_or_404(User, pk=request.session['user_id'])

# Also note that the model is no longer necessary as you’re explicitly calling it in get_object. 
# The object is now available in the template using the model name, in this case user:

# {{ user.id }}

# You can override this name by using context_object_name.

# https://chriskief.com/2012/12/29/django-generic-detailview-without-a-pk-or-slug/