python - 在 Django 中注册多个信号

Question

我正在尝试在一个模型上注册多个信号。似乎当我注册一个额外的信号时，它会删除以前的信号。

from django.dispatch import receiver
from django.db.models.signals import post_save,post_delete
from my.app.models import Resource


@receiver(post_save,sender=Resource)
def ResourceSaved(sender,**kwargs):
    print "Saved"

@receiver(post_delete,sender=Resource)
def ResourceSaved(sender,**kwargs):
    print "Deleted"

我浏览了文档，但我一直在寻找有关如何在类格式中创建自定义信号的详细信息。不是如何以类形式注册。

我想我可以做这样的事情:

@reciver(sender=Resource)
class SignalAnsweringMachine(object):
    def post_delete(self,**kwargs):
        print "delete"
    def post_save(self,**kwargs):
        print "save"

提前感谢您的帮助。

Answer 1

您正在(可能无意中)重新定义 ResourceSaved。试试这个:

@receiver(post_save,sender=Resource)
def ResourceSaved(sender,**kwargs):
    print "Saved"

@receiver(post_delete,sender=Resource)
def ResourceDeleted(sender,**kwargs):
    print "Deleted"