CODEWITHSUNDEEP
pythondjangomodelsone-to-many
Vahid Kharazi
Vahid Kharazi

Reputation: 6033

Create OneToMany models in django

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?

Upvotes: 1

Views: 717

Answers (2)

Rohan
Rohan

Reputation: 53326

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().

Upvotes: 4

oleg
oleg

Reputation: 4182

Why don't You want to use Many-To-One relationship

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)

Upvotes: 1

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