Django-Rest-Framework: No Attribute HelloViewSet

Question

我正在尝试构建一个简单的REST API。我尝试添加一个视图集，不知怎么的，我得到了一个错误，没有这样的属性。如果我删除视图集并使用APIView运行，它加载得很好。我被卡住了。可能是什么问题？我该怎么做才能让它发挥作用？

这是rest_profiles.views.py文件：

from django.shortcuts import render
from rest_framework import viewsets
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status
from .serializers import HelloSerializer
# Create your views here.

class HelloApiView(APIView):
'''Test API View'''
serializer_class = HelloSerializer
def get(self, request, format=None):
'''Returns a list of API features'''
an_apiview = [
'Uses HTTP methods as functions (get, psot, put, patch, delete)',
'Similar to Django View',
'Mapped manually to URLs'
]
return Response({'message': 'Hello from HelloAPIVIew', 'an_apiview': an_apiview})
def post(self, request):
'''Create Hello Message'''
serializer = HelloSerializer(data=request.data)
if serializer.is_valid():
name = serializer.data.get('name')
message = 'Hello {0}'.format(name)
return Response({'message': message})
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def put(self, request):
'''Handles Updates'''
serializer = HelloSerializer(data=request.data)
return Response({'message': 'put'})
def patch(self, request, pk=None):
'''Handles partial Updates'''
serializer = HelloSerializer(data=request.data)
return Response({'message': 'patch'})
def delete(self, request, pk=None):
'''Handles deleting items'''
serializer = HelloSerializer(data=request.data)
return Response({'message': 'delete'})
class HelloViewSet(viewsets.ViewSet):
'''Test API Viewset'''
def list(self, request):
'''Return Hello Message'''
a_viewset = [
'Uses Actions (list, create, retrieve, update, partial_update)',
'automatically maps to URLs using Router',
'More functionality with less code'
]
return Response({'message': 'Hello', 'a_viewset': a_viewset})

这是urls.py文件：

from django.conf.urls import url
from django.conf.urls import include
from rest_framework.routers import DefaultRouter
from . import views
router = DefaultRouter()
router.register('hello-viewset', views.HelloViewSet,
base_name='hello-viewset')

urlpatterns = [
url('hello-view/', views.HelloApiView.as_view()),
url('', include(router.urls))
]

可能是什么问题？可能的解决方案是什么？

Answer 1

如果您的代码粘贴正确，则看起来您的HelloViewSet位于HelloApiView内部。

缩进在Python中很重要。你需要取消这个代码：

class HelloViewSet(viewsets.ViewSet):
'''Test API Viewset'''
def list(self, request):
'''Return Hello Message'''
a_viewset = [
'Uses Actions (list, create, retrieve, update, partial_update)',
'automatically maps to URLs using Router',
'More functionality with less code'
]
return Response({'message': 'Hello', 'a_viewset': a_viewset})

这将把它直接放在views模块中，以便可以导入。