[Django prac][DRF with N:1 Relation] 7.

# articles > views.py 

serializer.save(article=article) 여기에서 

article=article 이거는 외래키이다. 

@api_view(['POST'])
def comment_create(request, article_pk):
    # 게시글 조회
    article = Article.objects.get(pk=article_pk)
    # 사용자 입력 데이터를 받아 직렬화 진행
    serializer = CommentSerializer(data=request.data)
    # 유효성 검사
    if serializer.is_valid(raise_exception=True):
        serializer.save(article=article)
        return Response(serializer.data, status=status.HTTP_201_CREATED)

from rest_framework.response import Response
from rest_framework.decorators import api_view
from rest_framework import status
from .serializers import ArticleListSerializer, ArticleSerializer, CommentSerializer
from .models import Article, Comment

@api_view(['GET', 'POST'])
def article_list(request):
    if request.method == 'GET':
        articles = Article.objects.all()
        serializer = ArticleListSerializer(articles, many=True)
        return Response(serializer.data)

    elif request.method == 'POST':
        serializer = ArticleSerializer(data=request.data)
        if serializer.is_valid(raise_exception=True):
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        # return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

@api_view(['GET', 'DELETE', 'PUT'])
def article_detail(request, article_pk):
    article = Article.objects.get(pk=article_pk)
    if request.method == 'GET':
        serializer = ArticleSerializer(article)
        return Response(serializer.data)

    elif request.method == 'DELETE':
        article.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)

    elif request.method == 'PUT':
        serializer = ArticleSerializer(
            article, data=request.data, partial=True
        )
        if serializer.is_valid(raise_exception=True):
            serializer.save()
            return Response(serializer.data, status=status.HTTP_200_OK)
        # return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

@api_view(['GET'])
def comment_list(request):
    # 전체 댓글 조회
    comments = Comment.objects.all()
    # 직렬화 진행
    serializer = CommentSerializer(comments, many=True)
    return Response(serializer.data)

@api_view(['GET'])
def comment_detail(request, comment_pk):
    # 단일 댓글 조회
    comment = Comment.objects.get(pk=comment_pk)
    # 직렬화 진행
    serializer = CommentSerializer(comment)
    return Response(serializer.data)

@api_view(['POST'])
def comment_create(request, article_pk):
    # 게시글 조회
    article = Article.objects.get(pk=article_pk)
    # 사용자 입력 데이터를 받아 직렬화 진행
    serializer = CommentSerializer(data=request.data)
    # 유효성 검사
    if serializer.is_valid(raise_exception=True):
        serializer.save(article=article)
        return Response(serializer.data, status=status.HTTP_201_CREATED)

---

# 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 Meta:
        model = Article
        fields = '__all__'

class CommentSerializer(serializers.ModelSerializer):
    class Meta:
        model = Comment
        fields = '__all__'
        read_only_fields = ('article',)

# 서버 켜기 

save all 

 python manage.py runserver

 

# 포스트맨에 요청하기

http://127.0.0.1:8000/api/v1/articles/1/comments/

201 ok 응답을 받아서 잘 되었다