擅长:python、mysql、java
<p>当我遇到类似的问题时,类似的方法奏效了:</p>
<pre><code>class Chield(models.Model):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
if not self.parent:
self.parent = Parent()
name = models.CharField()
parent = models.ForeignKey(Parent, null=True)
</code></pre>