python -/posts/ 'PostList'的AssertionError应该包含 `queryset`属性，或者重写 `get_queryset()`方法

Question

ERROR in url==http://127.0.0.1:8000/posts/
D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\views.py in dispatch

            response = self.handle_exception(exc)

 ...

▶ Local vars D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\views.py in handle_exception

            self.raise_uncaught_exception(exc)

 ...

▶ Local vars D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\views.py in dispatch

            response = handler(request, *args, **kwargs)

 ...

▶ Local vars D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\generics.py in get

        return self.list(request, *args, **kwargs)

 ...

▶ Local vars D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\mixins.py in list

        queryset = self.filter_queryset(self.get_queryset())

 ...

▶ Local vars D:\Priyanka_Angular1\virtual_env\django-angular\lib\site-packages\rest_framework\generics.py in get_queryset

            % self.__class__.__name__

serializer.py

from rest_framework import serializers
from posts.models import Post

class PostSerializer(serializers.HyperlinkedModelSerializer):
    author = serializers.Field(source='author.username')
    api_url = serializers.SerializerMethodField('get_api_url')

    class Meta:
        model = Post
        fields = ('id', 'title', 'description', 'created_on', 'author', 'url', 'api_url')
        read_only_fields = ('id', 'created_on')

    def get_api_url(self, obj):
         return "#/post/%s" % obj.id

views.py

from django.shortcuts import render
from rest_framework import generics
from posts.models import Post
from posts.serializers import PostSerializer

class PostList(generics.ListCreateAPIView):
  """
   List all boards, or create a new board.
  """
  model = Post
  serializer_class = PostSerializer


class PostDetail(generics.RetrieveUpdateDestroyAPIView):
  """
   Retrieve, update or delete a board instance.
  """
  model = Post
  serializer_class = PostSerializer

Answer 1

您需要在queryset = Post.objects.all() View 以及PostList中包括PostDetail。

每个 View 都需要定义一个查询集，以知道要查找的对象。您可以通过使用queryset属性(如我建议的那样)或从get_queryset方法返回有效的查询集来定义 View 的查询集。

顺便说一下，您可以在 View 中摆脱掉model属性，因为它们没有被使用。这不是告诉 View 要查找哪些对象的正确方法。