CODEWITHSUNDEEP
pythondjangodjango-modelsdjango-rest-framework
1010101
1010101

Reputation: 991

Django RestFramework: two way ForeignKey relation

There are two models Parent and Children.

class Parent(models.Model):
    name = models.CharField(max_length=128)
    children = ?

class Children(models.Model):
    name = models.CharField(max_length=128)
    parent = ?

If we need the children instances to have parent as link to model Parent we can use ForeignKey in Children and vice versa.

If parent A has children B and C and we want A to have ids of children B and C and children B and C to have id of parent A. i.e. A.children = (B.id, C.id) and B.parent = A.id, C.parent = A.id.

How can we achieve this?

parent = models.ForeignKey(Parent, related_name='children')

can this be used?

Upvotes: 0

Views: 942

Answers (1)

Peter DeGlopper
Peter DeGlopper

Reputation: 37364

Yes, if a Child instance has exactly one parent a ForeignKey field to the parent model is the correct relation. Your example looks fine to me except that the convention is that model names are singular rather than plural - class Child(models.Model): rather than class Children(models.model):.

Upvotes: 1

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