Django Class Based View for both Create and Update

Question

Say I want to create a Class Based View which both updates and creates an object. From a previous question I worked out I

Answer 1

Simplest and basically the best solution of all link

class WorkerUpdate(UpdateView):
    form_class = WorkerForm

    def get_object(self, queryset=None):

        # get the existing object or created a new one
        obj, created = Worker.objects.get_or_create(mac=self.kwargs['mac'])

        return obj

and that's it thanks @chriskief