Serialize ArrayModelField into JSON in Django DRF - django

Question

I am using Djongo with Django 2.2. I am using MongoDb and using Djongo. i am facing issues in GET API. The Comment model is not serialized. Following is the code snippet.
models.py
import uuid
from djongo import models
class Comment(models.Model):
text = models.TextField();
author = models.TextField();
class Meta:
abstract = True
def __str__(self):
return self.author +self.text
class Scene(models.Model):
id = models.UUIDField(primary_key = True, default = uuid.uuid4,editable = False)
title = models.CharField(max_length=100)
comments = models.ArrayModelField(
model_container = Comment,
);
def __str__(self):
return self.title
serializers.py
from rest_framework import serializers
from planning.models import Scene, Comment
class CommentSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = Comment
fields = ('text', 'author')
class SceneSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = Scene
comments = CommentSerializer();
fields = ('id', 'title', 'comments')
viewsets.py
from planning.models import Scene, Comment
from .serializers import SceneSerializer, CommentSerializer
from rest_framework import viewsets
from rest_framework.decorators import action
from rest_framework.response import Response
from rest_framework import status
from rest_framework import generics
from rest_framework.generics import RetrieveUpdateDestroyAPIView
class SceneViewSet(viewsets.ModelViewSet):
queryset = Scene.objects.all()
serializer_class = SceneSerializer
class CommentViewSet(viewsets.ModelViewSet):
queryset = Comment.objects.all()
serializer_class = CommentSerializer
Output for GET scene model in DRF
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
[
{
"id": "28db3aa8-34ef-4880-a3eb-57643814af22",
"title": "scene 1",
"comments": "[<Comment: edwardcomment1>, <Comment: edwardcomment2>]"
}
]
Expected output
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
[
{
"id": "28db3aa8-34ef-4880-a3eb-57643814af22",
"title": "scene 1",
"comments": "[ { name : edward, text: comment1 },
{ name : edward, text: comment2 } ]"
}
]
The Comment which is ArrayModelField of Djongo is not serialized properly as expected.

Answer 1

Serialize comments outside of Meta:
from rest_framework import serializers
from planning.models import Scene, Comment
class CommentSerializer(serializers.ModelSerializer):
class Meta:
model = Comment
fields = ('text', 'author')
class SceneSerializer(serializers.ModelSerializer):
comments = CommentSerializer(many=True, read_only=True)
class Meta:
model = Scene
fields = ('id', 'title', 'comments')
DRF nested relationships