delete.py 文件源码

def init_request(self, object_id, *args, **kwargs):
        "The 'delete' admin view for this model."
        self.obj = self.get_object(unquote(object_id))

        if not self.has_delete_permission(self.obj):
            raise PermissionDenied

        if self.obj is None:
            raise Http404(_('%(name)s object with primary key %(key)r does not exist.') % {'name': force_text(self.opts.verbose_name), 'key': escape(object_id)})

        using = router.db_for_write(self.model)

        # Populate deleted_objects, a data structure of all related objects that
        # will also be deleted.
        (self.deleted_objects, model_count, self.perms_needed, self.protected) = get_deleted_objects(
            [self.obj], self.opts, self.request.user, self.admin_site, using)