Django rest framework serialization on foreign key

Question

I have a django model as follows:

class A(models.Model):
    comments = models.CharField(max_length=200, blank=True)

class B(models.Model):
    name = models.CharField(max_length=50, blank=True)

class c(models.Model):
    a = models.ForeignKey(A, related_name='modelA')
    b = models.ForeignKey(B, related_name='modelB')

and i have serializers as follows:

class ASerializer(serializers.ModelSerializer):

    class Meta:
        model = A

class CSerializer(serializers.ModelSerializer):

    class Meta:
        model = C

class BSerializer(serializers.ModelSerializer):
    modelB = CSerializer(many=True, read_only=True)

    class Meta:
        model = B

The B serializer works as follows:

[
    {
        "id": 2,
        "modelB": [
            {
                "id": 1,
                "b": 2,
                "a": 3
            }
        ]
    }
]

What do i have to tweak to make it result as follows:

[
    {
        "id": 2,
        "modelB": [
            {
                "id": 1,
                "b": 2,
                "a": [
                     {
                         "id": 1,
                         "comments": "",
                     }
                 ]
            }
        ]
    }
]

Tevin Joseph K O · Accepted Answer · 2015-09-12 14:10:44Z

1

Change your CSerializer as follows:

class CSerializer(serializers.ModelSerializer):
    a = ASerializer()

    class Meta:
        model = C

answered Sep 12, 2015 at 14:10

Tevin Joseph K O

2,65424 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Abhishek Over a year ago

but this is a foreign key relation which is the same what i am already doing. I am trying the reverse relation in the second one

Tevin Joseph K O Over a year ago

@RogerFederer Have you tested my code? It produces the result what you showed as required output in your question.

Abhishek Over a year ago

oh i am so sorry! i forgot to remove the many=True, and read_only....it is working...thank you

Tevin Joseph K O Over a year ago

I'm glad that it helped :)

Collectives™ on Stack Overflow

Django rest framework serialization on foreign key

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related