[Django prac][DRF with N:1 Relation] 10.

---

응답 데이터 재구성

댓글에 대한 응답 데이터를, 우리가 원하는대로 재구성해보려고 한다. 

---

# articles > serializers.py

from rest_framework import serializers
from .models import Article, Comment


class ArticleListSerializer(serializers.ModelSerializer):

    class Meta:
        model = Article
        fields = ('id', 'title', 'content',)


class ArticleSerializer(serializers.ModelSerializer):
    class CommentDetailSerializer(serializers.ModelSerializer):
        class Meta:
            model = Comment
            fields = ('id', 'content',)

    comment_set = CommentDetailSerializer(read_only=True, many=True)
    comment_count = serializers.IntegerField(source='comment_set.count', read_only=True)

    class Meta:
        model = Article
        fields = '__all__'


class CommentSerializer(serializers.ModelSerializer):
    class ArticleTitleSerializer(serializers.ModelSerializer):
        class Meta:
            model = Article
            fields = ('title',)

    article = ArticleTitleSerializer(read_only=True)

    class Meta:
        model = Comment
        fields = '__all__'
        # read_only_fields = ('article',)

---