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我的模型:设置order_with_respect_to在Django的外键的外键订购
Class A(Orderable, Slugged):
a = models.CharField(max_length=250, null=True, blank=True)
class Meta:
ordering = ("_order",)
Class B(Orderable, Slugged):
a = models.ForeignKey(A, null=True, blank=True)
b = models.CharField(max_length=250, null=True, blank=True)
class Meta:
ordering = ("_order",)
order_with_respect_to = "a"
Class C(Orderable, Slugged):
b = models.ForeignKey(B, null=True, blank=True)
c = models.CharField(max_length=250, null=True, blank=True)
class Meta:
ordering = ("_order",)
order_with_respect_to = "b__a"
我怎样才能实现这一目标? 我想要“C”类order_with_respect_to“A”类。 帮助将不胜感激。