Django Rest Create with a Writable Nested Serializer

[Ronaldo Bahia]

Hi everyone,


I'm trying to perform a create in Django Rest Framework using a writable 
nested serializer.

With the code bellow I can create a ScriptQuestion but I can't add a 
RecordedInterview into it. Django says OrderedDict is None.

What am I doing wrong?

Thanks in advance


Thread: 
http://stackoverflow.com/questions/39415005/django-rest-create-with-a-writable-nested-serializer


#models.py
class ScriptQuestion(models.Model):
    interview = models.ManyToManyField(RecordedInterview)
    ...
class RecordedInterview(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    ...

The serializers

#serializers.py
class InterviewTitleSerializer(serializers.HyperlinkedModelSerializer):

    class Meta:
        model = RecordedInterview
        fields = ('id', 'title')
        extra_kwargs = {
            'title': { 'read_only': True }
        }

class QuestionDetailSerializer(serializers.HyperlinkedModelSerializer):

    interview = InterviewTitleSerializer(many=True)

    class Meta:
        model = ScriptQuestion
        fields = ('id', 'title', 'prep_time', 'answer_time', 'interview')
        depth = 1

    def create(self, validated_data):
        interview_data = validated_data.pop('interview')
        question = ScriptQuestion.objects.create(**validated_data)
        for item in interview_data:
            item = interview_data['id']
            question.interview.add(item)
        return question

Here is my view

#views.py 
class CreateQuestion(generics.CreateAPIView):
    queryset = ScriptQuestion.objects.all()
    serializer_class = QuestionDetailSerializer

And the json

{
    "title": "Question Test Json",
    "prep_time": "1",
    "answer_time":"1",
    "interview": [
           {
                "id": "a450aeb0-8446-47b0-95bd-5accbb8b4afa"
            }
     ]}

If I do manually, I can add the RecordedInterview into the ScriptQuestion:

#serializers.py 
def create(self, validated_data):
    interview_data = validated_data.pop('interview')
    question = ScriptQuestion.objects.create(**validated_data)
    item = 'a450aeb0-8446-47b0-95bd-5accbb8b4afa'
    question.interview.add(item)
    return question

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to django-users+unsubscr...@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-users/01dd7e85-2281-4fe4-99b9-30a6669b6862%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.