Question

我有一个模型可以向学院（学院用户）添加（分配）用户，问题是我可以多次向学院添加同一个用户。我在这做错了什么？

onCreate()

我正在添加class AcademyPlayer(models.Model): academy = models.ForeignKey(Academy, on_delete=models.CASCADE) player = models.ForeignKey('player.Player', on_delete=models.CASCADE) date_joined = models.DateTimeField(auto_now_add=True) def __str__(self): return self.player.user.name以供参考：

player.Player model

Answer 1

class AcademyPlayer(models.Model):
    academy = models.OneToOneField(Academy, on_delete=models.CASCADE)
    player = models.OneToOneField('player.Player', on_delete=models.CASCADE)
    date_joined = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return self.player.user.name

将<{1}}用于此

并且在此更改后不要忘记OneToOneField和makemigrations

能够多次将同一用户添加到另一个模型

1 个答案: