Render a form to edit an object.

def edit(self, request, id):
        """Render a form to edit an object."""
        try:
            object = self.model.objects.get(id=id)
        except self.model.DoesNotExist:
            return self._render(
                request = request,
                template = '404',
                context = {
                    'error': 'The %s could not be found.' % self.model.__name__.lower()
                },
                status = 404,
                prefix_template_path = False
            )

        form = (self.form or generate_form(self.model))(instance=object)

        # Add "_method" field to override request method to PUT
        form.fields['_method'] = CharField(required=True, initial='PUT', widget=HiddenInput)

        return self._render(
            request = request,
            template = 'edit',
            context = {
                cc2us(self.model.__name__): object,
                'form': form
            },
            status = 200
        )