Question

现在我有两个型号（未来可能更多）：

class UserProfile(models.Model):

    first_name = models.CharField(_('first name'), max_length=30, blank=True)
    last_name = models.CharField(_('last name'), max_length=30, blank=True)
    birth_date = models.DateField(_('birth date'), null=True, blank=True)


class TeamProfile(models.Model):

    user = models.ManyToManyField(UserProfile)
    name = models.CharField(_('company name'), max_length=30, blank=True)
    info = models.TextField(_('information'), max_length=500, blank=True)

这两个Profiles都应该能够选择kinds_of_sports + mastery，即每个User或Team可以进行几种体育运动不同的掌握程度分别如：Jim（Football-＆gt; Pro，Volleyball-＆gt; Newby）。

执行以下操作是否正确：

class AbstractSports(models.Model):
    KINDS_OF_SPORTS = (
        (1, _('football')),
        (2, _('volleyball')),
        (3, _('hockey')),
    )

    MASTERY_CHOICES = (
        (1, _('newby')),
        (2, _('amateur')),
        (3, _('semi-pro')),
        (4, _('pro'))
    )

    kind_of_sport = models.IntegerField(_('kind of sport'), null=True, blank=True, choices=KINDS_OF_SPORTS)
    mastery = models.IntegerField(_('mastery'), null=True, blank=True, choices=MASTERY_CHOICES)

    class Meta:
        abstract=True

class UserSports(AbstractSports):
    user = models.ForeignKey(UserProfile, on_delete=models.CASCADE)

class TeamSports(AbstractSports):
    team = models.ForeignKey(TeamProfile, on_delete=models.CASCADE)

还是会有更好的方式？

Answer 1

我会对此进行一次尝试，我不确定这是多少改进，但是当我正在阅读你的问题时，它开始贯穿我的脑袋。

我不确定团队和用户配置文件的差异或相似之处，但您可能希望将其转换为单个模型，然后使用一种类型来定义其用户或团队。如果您想要一个分配了用户配置文件的团队，那么就与自己建立关系。

class Profile(models.Model):
    PROFILE_TYPES = (
        ('USER', 'User'),
        ('TEAM', 'Team'),
    )
    type = models.CharField(max_length=4, choices=PROFILE_TYPES)
    first_name = models.CharField(_('first name'), max_length=30, blank=True)
    last_name = models.CharField(_('last name'), max_length=30, blank=True)
    birth_date = models.DateField(_('birth date'), null=True, blank=True)
    user = models.ManyToManyField('Profile') #manytomany itself for teams that have profiles assigned to it
    name = models.CharField(_('company name'), max_length=30, blank=True)
    info = models.TextField(_('information'), max_length=500, blank=True)

然后只需要一个像你一样的单一运动模型，然后再回到个人资料中

class Sports(models.Model):
    KINDS_OF_SPORTS = (
        (1, _('football')),
        (2, _('volleyball')),
        (3, _('hockey')),
    )

    MASTERY_CHOICES = (
        (1, _('newby')),
        (2, _('amateur')),
        (3, _('semi-pro')),
        (4, _('pro'))
    )
    kind_of_sport = models.IntegerField(_('kind of sport'), null=True, blank=True, choices=KINDS_OF_SPORTS)
    mastery = models.IntegerField(_('mastery'), null=True, blank=True, choices=MASTERY_CHOICES)
    profile = models.ForeignKey(Profile, on_delete=models.CASCADE)

需要有关models \ tables

1 个答案: