Create OneToMany models in django

Question

I want to create one to many model in django. for example I have

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)

How I can do this work?

Answer 1

There is ForeignKey in django that is used for such relationships.

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)

Once you have this, the UserProfile object can have multiple mobile numbers which can be accessed through userprof_obj.mobile_set which is a RelationshipManager. To get all mobile numbers, you can do userprof_obj.mobile_set.all().