Django的通知評論GET所有者

Question

我期待在訪問誰擁有發佈的評論的CONTENT_TYPE

目前我可以訪問用戶誰帖子的用戶，評論，但是我想通知誰擁有的人項目...

我試過user = comment.content_type.user但我得到一個錯誤。

在我的主要__init__.py文件

只要我改變，要user = request.user它工作正常，但隨後的通知被髮送到誰提出的意見的人。

from django.contrib.comments.signals import comment_was_posted 

if "notification" in settings.INSTALLED_APPS: 
    from notification import models as notification 

    def comment_notification(sender, comment, request, **kwargs): 
     subject = comment.content_object 
     for role in ['user']: 
      if hasattr(subject, role) and isinstance(getattr(subject, role), User): 
       user = getattr(subject, role) 
       message = comment 
       notification.send([user], "new_comment", {'message': message,}) 

    comment_was_posted.connect(comment_notification) 

Answer 1

comment.content_object.user是正確的。但是這個問題很棘手。由於評論可以附加到任何模型，您不知道此模型是否有user字段。在許多情況下，可以有不同的名稱，即。如果您對article有任何意見，文章可能有article.author和如果您有car模型，並且您正在評論它，可能會有car.owner。因此在這種情況下使用.user不適用於此目的。

我的命題來解決這個問題正在感興趣的評論可能的角色的列表，並嘗試將消息發送到所有的人：

from django.contrib.comments.signals import comment_was_posted 

if "notification" in settings.INSTALLED_APPS: 
    from notification import models as notification 

    def comment_notification(sender, comment, request, **kwargs): 
     subject = comment.content_object 
     for role in ['user', 'author', 'owner', 'creator', 'leader', 'maker', 'type any more']: 
     if hasattr(subject, role) and isinstance(getattr(subject, role), User): 
      user = getattr(subject, role) 
      message = comment 
      notification.send([user], "new_comment", {'message': message,}) 

    comment_was_posted.connect(comment_notification) 

你也應該，移動這個列表配置的某些王：

from django.contrib.comments.signals import comment_was_posted 
default_roles = ['user', 'author', 'owner'] 
_roles = settings.get('MYAPP_ROLES', default_roles) 
if "notification" in settings.INSTALLED_APPS: 
    from notification import models as notification 

    def comment_notification(sender, comment, request, **kwargs): 
     subject = comment.content_object 
     for role in _roles: 
     if hasattr(subject, role) and isinstance(getattr(subject, role), User): 
      user = getattr(subject, role) 
      message = comment 
      notification.send([user], "new_comment", {'message': message,}) 

    comment_was_posted.connect(comment_notification) 

另一種方法解決這個問題是創建機制轉換class到role。但要讓它變得更加困難很難，所以你可能不想這麼做。