Question

我有一个用户模型：

Class User(models.Model):
   #some fields

另一个配置文件模型，由字段组成 - ＆gt;母亲和父亲。

Class Profile(models.Model):
   father = models.ForeignKey(
    'User',
    related_name='children',
    on_delete = models.CASCADE)
   mother = models.ForeignKey(
    'User',
    related_name='children',
    on_delete = models.CASCADE)

现在，这样做是对的吗？如果是，我怎么才能得到用户的孩子？

Answer 1

使用房产怎么样？

class User(models.Model):
   #some fields

   @property
   def children(self):
      if self.gender == 'm':
         return self.father_children.all()
      return self.mother_children.all()

和

class Profile(models.Model):
   father = models.ForeignKey(
    'User',
    related_name='father_children',
    on_delete = models.CASCADE)
   mother = models.ForeignKey(
    'User',
    related_name='mother_children',
    on_delete = models.CASCADE)

不理想，但这是

Answer 2

将模型更改为

from django.contrib.auth.models import AbstractUser

class User(AbstractUser):
   # ....
   gender = models.ChoiceField(choices=(('m', 'Male'), ('f', 'Female')))
   # .... 

   def children(self):
       if self.gender == 'm':
          return self.fchildren
       return self.mchildren

class Profile(models.Model):
   father = models.ForeignKey(
    'User',
    related_name='fchildren',
    on_delete = models.CASCADE)
   mother = models.ForeignKey(
    'User',
    related_name='mchildren',
    on_delete = models.CASCADE)

访问网址

 user = User.objecets.get(pk=10)
 children = user.children.all()

在单个模型中使用相同的related_name。 Django的

2 个答案: