Question

我正在寻找访问拥有发布评论的content_type的用户

目前我可以访问发帖的用户，评论，但我想通知拥有该项目的人...

我尝试user = comment.content_type.user，但收到错误。

在我的主__init__.py文件中

只要我将其更改为user = request.user，它就可以正常工作，但通知会发送给发表评论的人。

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是正确的。但这个问题很棘手。由于评论可以附加到任何模型，因此您不知道此模型是否具有user字段。在许多情况下，该字段可以有不同的名称，即。如果您对article发表评论，则文章可以有article.author，如果您有car模型，并且您正在对其进行评论，则可能会car.owner。因此，为此目的使用.user在这种情况下不起作用。

我解决这个问题的主张是列出对评论感兴趣的可能角色，并尝试向所有人发送消息：

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)

您还应将此列表移至配置王：

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)

解决此问题的另一种方法是创建将class转换为role的机制。但要做到这一点要困难得多，所以你可能不想这样做。

Django通知评论获得所有者

1 个答案: