我将创建一个 API，当我向路由器发送请求并将评论附加到帖子的 pk 值时，它只会显示帖子中的评论。所以网址如下。写完py和views.py后，发送请求，出现404错误。如何通过编写 API 来获取评论？这是我制作的代码。urls.pyurlpatterns = [ path('post', CreateReadPostView.as_view({'post': 'create', 'get': 'list'})), path('post/<int:pk>', UpdateDeletePostView.as_view({'put': 'update', 'patch': 'partial_update', 'delete': 'destroy'})), path('post/<int:post.pk>/comments', CreateReadCommentView.as_view({'post': 'create', 'get': 'list'})),] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)views.pyclass CreateReadCommentView (ModelViewSet) : serializer_class = CommentSerializer permission_classes = [IsAuthenticated] queryset = Comment.objects.all() def perform_create (self, serializer) : serializer.save(author=self.request.user)
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泛舟湖上清波郎朗
TA贡献1818条经验 获得超3个赞
您可以重写该get_queryset()方法。
models.py
class Post(models.Model):
...
class Comment(models.Model):
post = models.ForeignKey(Post, on_delete=models.CASCADE)
...
urls.py
urlpatterns = [
...
path('post/<int:post_id>/comments', CreateReadCommentView.as_view({'post': 'create', 'get': 'list'})),
]
views.py
class CreateReadCommentView (ModelViewSet):
serializer_class = CommentSerializer
permission_classes = [IsAuthenticated]
queryset = Comment.objects.all()
def perform_create(self, serializer):
serializer.save(author=self.request.user)
def get_queryset(self):
return super().get_queryset().filter(post=self.kwargs.get('post_id'))
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