Django 芹菜任务类与DRF序列化程序

我尝试在具有多重继承的同一类中使用芹菜任务和Django rest框架序列化程序

from celery import Task
class ReceiveSerializer(Task, serializers.Serializer):
    def run(self, source, *args, **kwargs):
        self.save()
    def save(self, **kwargs):
        # call long running save method

我出错了

  File "<>\serializers.py", line 217, in <module>
    class ReceiveSerializer(Task, serializers.Serializer):
  File "<>\workspace\www\lib\site-packages\celery-3.1.20-py2.7.egg\celery\app\task.py", line 199, in __new_
_
    tasks.register(new(cls, name, bases, attrs))
TypeError: Error when calling the metaclass bases
    metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases

文件“\serializers.py”，第217行，在
类ReceiveSerializer（任务，Serializer.Serializer）：
文件“\workspace\www\lib\site packages\cellery-3.1.20-py2.7.egg\cellery\app\task.py”，第199行，新_
_
任务.注册表（新的（cls、名称、基数、属性））
TypeError：调用元类基时出错
元类冲突：派生类的元类必须是其所有基元类的（非严格）子类

save方法必须在db中创建一长串对象（有时超过5分钟）。我不希望用户等待很长时间。

---

有没有办法做到这一点

可以使用混合器吗

class YourMixin:
    # if you want to trigger the task on save:
    def save(self, *args, **kwargs):
        ret = super().save(*args, **kwargs)
        some_task.apply_async((
            self.__class__.__name__,
            self.pk,
        ))
        return ret


@task()
def some_task(model_name, model_id):
    my_model = apps.get_model('django_app_name.{}'.format(model_name))
    obj = my_model.objects.get(pk=model_id)