python - 如何在 Django 管理表单 save_model 中获取字段值

Question

我有以下模型:

class Guest(models.Model):
    first_name = models.CharField(max_length=128)
    last_name = models.CharField(max_length=128)
    category = models.ForeignKey(Category)
    player_achievement = models.ForeignKey(PlayerAchievement, related_name="guest_achievements")
    player = models.ForeignKey(Player)

我想在我的 save_model 方法中使用表单中选择的玩家:

def save_model(self, request, obj, form, change):
        player = ??? how do i get this from the admin form?


        obj.player = player
        obj.save()

Answer 1

这取决于您声明表单的方式。如果您继承了 ModelForm , 那么在大多数情况下你应该使用 ModelChoiceField选择关联的 Player 与您的 Guest 对象，这是通过调用 form.cleaned_data.get('player')