django 信号模块对象没有属性连接

Question

我正在尝试创建一个项目，用于在博客的帮助下创建用户的提要/活动提要。

这是信号.py：

from django.db.models import signals
from django.contrib.contenttypes.models import ContentType
from django.dispatch import dispatcher
from blogs.models import Blog
from picture.models import Photo
from models import StreamItem

def create_stream_item(sender, instance, signal, *args, **kwargs):

    # Check to see if the object was just created for the first time

    if 'created' in kwargs:
        if kwargs['created']:
            create = True

            # Get the instance's content type

            ctype = ContentType.object.get_for_model(instance)

            if create:
                si = StreamItem.objects.get_or_create(content_type=ctype, object_id=instance.id, pub_date = instance.pub_date)

 # Send a signal on post_save for each of these models

for modelname in [Blog, Photo]:
    dispatcher.connect(create_stream_item, signal=signals.post_save, sender=modelname)

当我尝试运行服务器时，它给了我一个错误：

AttributeError: 'module' 对象没有属性 'connect'

请帮帮我。将不胜感激。谢谢。

Answer 1

替换

from django.dispatch import dispatcher -> from django.dispatch import Signal

dispatcher.connect -> Signal.connect

dispatcher 是模块，interpreter 告诉你。