Serialize related objects in django rest framework - django

Question

How can I serialize related objects in DRF. Am having three models auth_user (User), ModelA, ModelB.
My models:
class ModelA(models.Model):
user = models.OneToOneField(auth_user, related_name = 'modelA')
name = models.CharField(max_length = 30)
class ModelB(models.Model):
owner = models.OneToOneField(auth_user)
user = models.OneToOneField(auth_user, related_name = 'modelB')
type = models.ForeignKey(ModelD)
cost = models.IntegerField()
class ModelD(models.Model):
type_desc = models.CharField(max_length = 40)
My serialilzers:
class A(serializers.ModelSerializer):
class Meta:
model = ModelA
fields = ('name', )
class B(serializers.ModelSerializer):
class Meta:
model = ModelB
fields = ('type', 'cost', )
class AuthUserSerilaizer(serializers.ModelSerializer):
userA = serializers.RelatedField(source = 'modelA')
userB = serializers.RelatedField(source = 'modelB')
class Meta:
model = User
fields = ('email', 'password', 'userA', 'userB', )
write_only_fields = ('password',)
#transaction.commit_manually
def restore_object(self, attrs, instance = None):
try:
user = User.objects.create_user(email = attrs.get('email'), password = attrs.get('password'))
modela = ModelA(user =user, name = attrs.get('name'))
modela.save()
transaction.commit()
return User(email = attrs.get('email'))
except Exception ,e:
transaction.rollback()
print repr(e)
JSON I'm passing
data = {'email':'123#gmail.com,
'password' : 'dummy',
'userA' : {'name' :'123'},
'userB':{'type':1,'cost':'100'}
Whenever am making a POST request the 'attrs' gets only email and password not userA and userB, why? How can I deserialize and create data serially in the respective tables.

Answer 1

try this in your view
from django.core.serializers.json import DjangoJSONEncoder
import json
response = json.dumps(data,cls=DjangoJSONEncoder)
return HttpResponse(response, mimetype="application/json")
and in success function you can access using
usera_name = response.userA.name
userb_type = response.userB.type
userb_cost = response.userB.cost