Example of Django Class-Based DeleteView

Question

Does anyone know of or can anyone please produce a simple example of Django's class-based generic DeleteView? I want to subclass DeleteView and ensure that the currently logged-in user has ownership of the object before it's deleted. Any help would be very much appreciated. Thank you in advance.

Answer 1

Here's a simple one:

from django.views.generic import DeleteView
from django.http import Http404

class MyDeleteView(DeleteView):
    def get_object(self, queryset=None):
        """ Hook to ensure object is owned by request.user. """
        obj = super(MyDeleteView, self).get_object()
        if not obj.owner == self.request.user:
            raise Http404
        return obj

Caveats:

• The DeleteView won't delete on GET requests; this is your opportunity to provide a confirmation template (you can provide the name in the template_name class attribute) with a "Yes I'm sure" button which POSTs to this view
• You may prefer an error message to a 404? In this case, override the delete method instead, check permissions after the get_object call and return a customised response.
• Don't forget to provide a template which matches the (optionally customisable) success_url class attribute so that the user can confirm that the object has been deleted.