兩個外鍵問題django

Question

嗨，我有這個Django的Python代碼，基本上我試圖建立它，以便每個tourobject可以有很多tourbets，但也想能夠保存某個獲勝的tourbet作爲當前下注但然後django抱怨它找不到TourBet

class TourObject(models.Model): 
    tourplace = models.ForeignKey(TourPlace, related_name='tourplace', verbose_name="tourplace", default=1) 
    title = models.CharField(max_length=155, blank=True) 
    description = models.TextField(blank=True) 
    date_created = models.DateTimeField(auto_now_add=True) 
    status = models.BooleanField(default=False, verbose_name="Status") 
    end_date = models.DateTimeField(blank=True, default=datetime.now) 
    current_bet = models.IntegerField(blank=True, default=0) 
    next_bet = models.IntegerField(blank=True, default=0) 
    no_auction_price = models.IntegerField(blank=True, default=1) 

    objects = models.Manager() 

    def __unicode__(self): 
     return self.title 

    def get_absolute_url(self): 
     return reverse("tourobjects:tourobject", kwargs={"pk": self.pk}) 

class RelatedTourObject(models.Manager): 
    def get_queryset(self): 
     return super(RelatedTourObject, self).get_queryset().select_related('tourobject').all() 

class TourBet(models.Model): 
    user = models.ForeignKey(User, related_name='tourbet', verbose_name='User') 
    tourobject = models.ForeignKey(TourObject, related_name='tourobjectbet', verbose_name="tourobjectbet", default=1) 
    date_created = models.DateTimeField(blank=True, default=datetime.now) 
    bet_amount = models.IntegerField(blank=True, default=1) 

    objects = models.Manager() 
    related_tourobject = RelatedTourObject() 

    def __unicode__(self): 
     return str(self.bet_amount) 

Answer 1

我想你可以試試這個。

class TourObject(models.Model): 
    winning_bet = models.ForeignKey('TourBet', related_name='winning_bet')