create multiple objects using writable nested serializers in django rest framework 3

Question

In drf3 you can now implement a writable nested serializer by overriding the create() method and handling validated_data yourself

def create(self, validated_data):
    profile_data = validated_data.pop('profile')
    user = User.objects.create(**validated_data)
    Profile.objects.create(user=user, **profile_data)
    return user

What if profile was a to many relationship and the validated_data would actually contain multiple profiles. How would I create multiple related objects in create?

If you know it actually contains the data you think you can just create them in a loop — krs
– krs, Commented Dec 3, 2014 at 11:43
i dont know how the data is given as i havent upgraded to 3 yet, but if it is a list then a normal for-loop would do the job — krs
– krs, Commented Dec 3, 2014 at 11:48

matteok · Accepted Answer · 2014-12-03 14:49:33Z

7

As suggested by krs the answer is the following:

def create(self, validated_data):
    profiles_data = validated_data.pop('profiles')
    user = User.objects.create(**validated_data)
    for profile_data in profiles_data:
        profile = Profile.objects.create(user=user,**profile_data)
    return user

answered Dec 3, 2014 at 14:49

matteok

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