Question

我想在django中创建一对多的模型。例如，我有

class UserProfile(models.Model):
    user = models.OneToOneField(User)
    mobile = 1  #I want OneToMany
    website = models.URLField()

class Mobile(models.Model):
    phone_number = models.CharField(min_length=7, max_length=20)
    description = models.CharField(min_length=7, max_length=20)

我如何做这项工作？

Answer 1

django中有ForeignKey用于此类关系。

class UserProfile(models.Model):
    user = models.OneToOneField(User)
    website = models.URLField()


class Mobile(models.Model):
    phone_number = models.CharField(min_length = 7, max_length = 20)
    description = models.CharField(min_length = 7, max_length = 20)
    user_profile = models.ForeignKey(UserProfile)

完成此操作后，UserProfile对象可以有多个移动电话号码，可通过userprof_obj.mobile_set RelationshipManager访问。要获取所有手机号码，您可以执行userprof_obj.mobile_set.all()。

Answer 2

为什么不想使用多对一关系

class Mobile(models.Model):
    user = models.ForeignKey(UserProfile)
    phone_number = models.CharField(min_length=7, max_length=20)
    description = models.CharField(min_length=7, max_length=20)

在django中创建OneToMany模型

2 个答案: