class TavernHero(models.Model):
    """ available heroes in a perticulair Tavern """

    tavern = models.ForeignKey(Tavern)

    #classes
    warrior = models.ForeignKey('heroes.Warrior', null=True)
    trader = models.ForeignKey('heroes.Trader', null=True)
    crafter = models.ForeignKey('heroes.Crafter', null=True)


    def __unicode__(self):
        return "Tavern Hero"


    #delete related warrior/trader/crafter object
    def delete_hero(self):
        klasses = ['warrior', 'trader', 'crafter']
        for klass in klasses:
            obj = getattr(klass)
            if obj != None:
                obj.delete()