我创建了一个带有几个类和外键的模型,并且能够将其保存在数据库中。
我有以下型号:
class Player_Bios(models.Model):
my_id = models.SlugField(unique=True)
player_id = models.IntegerField(max_length=50, unique=True)
name = models.CharField(max_length=50)
last = models.CharField(max_length=50)
middle = models.CharField(max_length=50, blank=True)
class BatStat (models.Model):
player_id = models.ForeignKey('Player_Bios')
team_id = models.ForeignKey('Team')
bat_stat_id = models.CharField(max_length=50, unique=True)
sport_code = models.CharField(max_length=50, blank=True)
ab = models.IntegerField(max_length=50, null=True)
class Team (models.Model):
team_id = models.IntegerField(max_length=50, unique=True)
team_short = models.CharField(max_length=50, blank=True)
team_full = models.CharField(max_length=50, blank=True)
当我将它保存到数据库时,我可以看到 Team 表上的 team_id 与 BatStat 表上的 team_id 相同,但 BatStat 上的 player_id 与 Player_Bios 表上的 player_id 不同。这是我将数据保存到数据库的方式:
p_id = Player_Bios.objects.get(player_id=st['player_id'])
t_id = Team.objects.get(team_id=st['team_id']) #I get the team_id from the Team Class
bat_id = str(st['season'])+ str(st['team_seq'])
bat_id = str(p_id.player_id) + bat_id
c = BatStat(player_id = p_id,team_id=t_id, bat_stat_id=bat_id, sport_code =st["sport_code"],ab=st['ab'])
c.save()
st['player_id'] 是一个字典。我做了一个打印,它显示了正确的 player_id 号码