django - 如何在django的多表继承中获取父对象

Question

我有以下两个使用多表继承的模型。PlayerAchievment 扩展了OverallAchievment：

class OverallAchievment(models.Model):
    achievement = models.ForeignKey(Achievement)
    match = models.ForeignKey(Match, limit_choices_to={'week_number': 2})
    created_at = models.DateTimeField(auto_now_add = True)
    updated_at = models.DateTimeField(auto_now = True)


class PlayerAchievement(OverallAchievment):
    player = models.ForeignKey(Player)

    def __unicode__(self):
        return self.player.first_name + ' ' + self.player.last_name

    def match_detail(self):
        ??? how to get match info here?

我想在 PlayerAchievement 子函数中提取有关父级匹配属性的一些信息。

我怎么做？

Answer 1

由于PlayerAchievementextends fromOverallAchievment你可以使用它的属性：

def match_detail(self):
    self.match.<attr_here>
    ...