admin.py 文件源码

def change_view(self, request, object_id, *args, **kwargs):
        if object_id is None:
            entity = None
        else:
            entity = self.get_object(request, unquote(object_id))

        extra_context = kwargs.pop('extra_context', None) or {}
        kwargs['extra_context'] = dict(extra_context, **{
            'entity': entity,
        })
        return super().change_view(request, object_id, *args, **kwargs)