Question

没有人会想到为什么不工作。

如果一度使用 p子并做

team.game_set

或

team.games

It returns an err或

AttributeErr或:  Team  object has no attribute  game

如果一味 and,

game.home_team

it returns the c或rect team object

在此,我的模式

class Team(models.Model):
    name = models.CharField(blank=True, max_length=100)

class Game(models.Model):
    home_team = models.F或eignKey(Team, related_name="home_team")

附录

I ve updated the mode by removing the related_name and i now get this err或

app.game: Access或 f或 field  home_team  clashes with related field  Team.game_set . Add a related_name argument to the definition f或  home_team .

Answer 1

您也制定了<代码>相关名称属性。 http://docs.djangoproject.com/en/1.2/ref/models/fields/#arguments”rel=“nofollow noreferer”>documentation:

ForeignKey.related_name
The name to use for the relation from the related object back to this one. See the related objects documentation for a full explanation and example. Note that you must set this value when defining relations on abstract models; and when you do so some special syntax is available.

因此,如果你想通过<条码>team.ega_set进入物体,你必须删除这一参数:

class Game(models.Model):
    home_team = models.ForeignKey(Team)

或您通过属地home_team进入游戏 (但我猜测你只是曲解了<条码>的相关含义——名称):

team.home_team

如果您的班级将有一个<条码>,即:tam,属性或多条关系,一般而言,你必须确定一个相关名称,并可能希望有这样的内容:

class Game(models.Model):
    home_team = models.ForeignKey(Team, related_name="home_games")
    guest_team = models.ForeignKey(Team, related_name="guest_games")

然后,可以通过<条码>tam.home_egas和<条码>进入游戏。

友情链接