Django에 대하여(34)_DRF with N:1 Relation - GET

1. 사전 준비

1-1. Comment 모델 정의

Comment 클래스 정의 및 데이터 베이스 초기화

# articles/models.py

class Comment(models.Model):
    artilce = models.ForeignKey(Article, on_delete=models.CASCADE
    content = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

---

Migration 및 fixtures 데이터 로드

$ python manage.py makemigrations
$ python manage.py migrate
$ python manage.py loaddata articles.json comments.json

---

URL 및 HTTP request method 구성

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2. GET - List

댓글 목록 조회를 위한 CommentSerializer 정의

# articles/serializers.py

from .models import Article, Comment


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

---

url 작성

urlpatterns = [
    ...,
    path('comments/', views.comment_list),
]

---

view 함수 작성

# articles/viws.py

from .models import Article, Comment
from .serializers import ArticleListSerializer, ArticleSerializer, CommentSerializer


@api_view(['GET'])
def comment_list(request):
    comments = Comment.objects.all()
    serializer = CommentListSerializer(comments, many=True)
    return Response(serializer.data)

---

GET http://127.0.01:8000/api/v1/comments/ 응답 확인

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3. GET - Detail

단일 댓글 조회를 위한 url 및 view 함수 작성

# articles/viws.py

@api_view(['GET'])
def comment_detail(request, comment_pk):
    comments = Comment.objects.get(pk=comment_pk)
    serializer = CommentSerializer(comment)
    return Response(serializer.data)

---

GET http://127.0.01:8000/api/v1/comments/1/ 응답 확인