CODEWITHSUNDEEP
djangodjango-modelsdjango-rest-frameworkdjango-serializer
Hari Krishnan
Hari Krishnan

Reputation: 6302

Django rest api: how to return a JsonArray of jsonObjects as a model field?

I have two django models as shown

model 1

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

model2

class Small(models.Model):
    name = models.CharField(max_length=50, null=True, blank=True)
    address = models.CharField(max_length=200, null=True, blank=True)
    big = models.ForeignKey(Big, related_name='small',null=True,on_delete=models.CASCADE)

There can be more than one Small items inside a Big item. The Bigserializer looks like below

class BigSerializer(serializers.ModelSerializer):

class Meta:
    model = Hotel
    fields = ('name','small')

Now on accessing the Big items,i am getting name and small fields. But the small field returns only the id of the Small model. I need the whole details like name and address of Small item inside the small field. How could i achieve it?

Upvotes: 0

Views: 82

Answers (1)

neverwalkaloner
neverwalkaloner

Reputation: 47364

You need to define Small serializer class:

class SmallSerializer(serializers.ModelSerializer):

    class Meta:
        model = Small
        fields = ('name','address')

and use this serializer in BigSerializer class:

class BigSerializer(serializers.ModelSerializer):
    small = SmallSerializer(many=True, read_only=True)

    class Meta:
        model = Hotel
        fields = ('name','small')

See details here.

Note that if you need writable nested serialization, you should implement custom create and update methods inside BigSerializer, see section writable nested serialization.

Upvotes: 1

Related Questions