python之Django之限制查看项目的用户

我的模型:

class PromoNotification(models.Model): 
    title = models.CharField(_('Title'), max_length=200) 
    content = models.TextField(_('Content')) 
    users = models.ManyToManyField(User, blank=True, null=True) 
    groups = models.ManyToManyField(Group, blank=True, null=True) 

我想将项目发布到具有某些权限的模板。该模板仅显示列表中用户(用户或/和组)的通知。我应该怎么办？感谢您的任何帮助。如果可以，请告诉我一些代码。

请您参考如下方法:

您可以使用自定义管理器，这样可以更轻松地在多个 View 中进行用户过滤。

class PromoNotificationManager(models.Manager): 
    def get_for_user(self, user) 
        """Retrieve the notifications that are visible to the specified user""" 
        # untested, but should be close to what you need 
        notifications = super(PromoNotificationManager, self).get_query_set() 
        user_filter = Q(groups__in=user.groups.all()) 
        group_filter = Q(users__in=user.groups.all()) 
        return notifications.filter(user_filter | group_filter) 

将经理连接到您的 PromoNotification 模型:

class PromoNotification(models.Model): 
    ... 
    objects = PromoNotificationManager() 

那么在你看来:

def some_view(self): 
    user_notifications = PromoNotification.objects.get_for_user(request.user) 

您可以在文档中阅读有关自定义管理器的更多信息:http://www.djangoproject.com/documentation/models/custom_managers/