基于不同模型的模型顺序

Question

在Django，我有两个模型；模型B与模型a的主键具有主键OneToOneField关系

class A(models.Model):
    id = models.AutoField(primary_key=True)
    id2 = models.ForeignKey(also a autofield to the field it’s referencing)
    class Meta:
        ordering = [“-id2” , “id”]

class B(models.Model): 
    id = models.OneToOneField(A, primary_key=True)
    class Meta:
        ordering = [???]

有没有一种方法可以让我在不复制数据的情况下根据a型订购B型

Answer 1

试试这个

class A(models.Model):
    id = models.AutoField(primary_key=True)
    id2 = models.ForeignKey(also a autofield to the field it’s referencing)
    class Meta:
        ordering = [“-id2” , “id”]

class B(models.Model): 
    id = models.OneToOneField(A, primary_key=True,related_name="A")
    class Meta:
        ordering = ["A__id"]