如何从Django的查询集中排除非活动用户 [英] how to exclude non-active users from queryset in django

问题描述

我想从项目中排除非活动用户。

I want to exclude non-active users from my project.

example 1:
  url:users/1/friends/ will show all friends of that user.

我只想在朋友列表中显示活跃用户。

I want to show only active users in friend list.

example 2:
  url:users/1/friends/ will show all friends of that user.

如果id为1的用户未激活，我不想显示他的任何活动。像他的朋友一样。.他的个人资料...等等

if user with id 1 is not active i don't want to show any activity of him..like his friends..his profile...etc

example 3:
  url:users/1/challenge/  will show all friends of that user in post form.

我不想以表格形式显示非活动用户。

i don't want to show non-active users in form.

有没有通用的方法可以执行此操作。因为这是一个很大的项目，我无法在所有地方进行过滤。

is there any generic way to perform this. Because its a big project and I can't make filter everywhere.

表就像：

class User(models.Model):
  ......
  ......
  friends = models.ForeignKey(User)

推荐答案

您应该使用自定义模型管理器：

You should use a custom Model Manager:

class ActiveUsersManager(models.Manager):
    use_for_related_fields = True

    def get_queryset(self):
        return super(ActiveUserManager, self).get_queryset().filter(is_active=True)


class User(models.Model):
    is_active = models.BooleanField(default=true)

    # first manager is the default and accessible through objects.
    active = ActiveUsersManager()
    all_users = models.Manager()

active_users = User.objects.all()    
all_users = User.all_users.all()

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