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我有以下两种模式:Django的select_related查询
class StraightredFixture(models.Model):
fixtureid = models.IntegerField(primary_key=True)
home_team = models.ForeignKey('straightred.StraightredTeam', db_column='hometeamid', related_name='home_fixtures')
away_team = models.ForeignKey('straightred.StraightredTeam', db_column='awayteamid', related_name='away_fixtures')
fixturedate = models.DateTimeField(null=True)
fixturematchday = models.ForeignKey('straightred.StraightredFixtureMatchday', db_column='fixturematchday')
hometeamscore = models.IntegerField(null=True)
awayteamscore = models.IntegerField(null=True)
soccerseason = models.ForeignKey('straightred.StraightredSeason', db_column='soccerseasonid', related_name='fixture_season')
def __unicode__(self):
return self.fixtureid
class Meta:
managed = True
db_table = 'straightred_fixture'
class UserSelection(models.Model):
userselectionid = models.AutoField(primary_key=True)
campaignno = models.CharField(max_length=36,unique=False)
user = models.ForeignKey(User, related_name='selectionUser')
teamselection1or2 = models.PositiveSmallIntegerField()
teamselectionid = models.ForeignKey('straightred.StraightredTeam', db_column='teamselectionid', related_name='teamID')
fixtureid = models.ForeignKey('straightred.StraightredFixture', db_column='fixtureid')
class Meta:
managed = True
db_table = 'straightred_userselection'
我使用下面的查询:
prevWeekTeams = UserSelection.objects.select_related().filter(soccerseason=1025,fixturematchday=5,user=currentUserID).order_by('teamselection1or2')
当它运行我得到以下错误:
Cannot resolve keyword 'soccerseason' into field. Choices are: campaignno, fixtureid, fixtureid_id, teamselection1or2, teamselectionid, teamselectionid_id, user, user_id, userselectionid
我知道这是行不通的,但我不太明白如何引用夹具表中的soccerseason。任何帮助,将不胜感激。非常感谢,艾伦。
PS
如果您需要链接的其他两个型号只是让我知道。
我是如此接近。我一直忘记双下划线:(10分钟后回答。 –