如何在Django rest框架中实现过滤器API

4 回答

• 1

  看起来你正在使用来自django的 Response 而不是django-rest-framework .

  您必须从rest_framework.response导入响应

  from rest_framework.response import Response
  

  回复于 2024-04-29T23:54:06+08:00
• 2

  问题是您要覆盖 ListAPIView 的 get 方法 . 此方法由GET请求调用 . get 的默认实现调用 ListModelMixin 的list方法，并调用 get_queryset ：

  def list(self, request, *args, **kwargs):
      queryset = self.filter_queryset(self.get_queryset())
  
      page = self.paginate_queryset(queryset)
      if page is not None:
          serializer = self.get_serializer(page, many=True)
          return self.get_paginated_response(serializer.data)
  
      serializer = self.get_serializer(queryset, many=True)
      return Response(serializer.data)
  

  如果覆盖此方法，则必须自己调用 get_queryset . 如果您只想检查用户是否经过身份验证，然后调用默认列表方法，您可以这样做：

  def get(self, request, format=None):
          if request.user.is_authenticated():
              return super(UserList, self).get(request, format)
          return Response("User is not authenticated.", status=status.HTTP_400_BAD_REQUEST)
  

  回复于 2024-04-29T23:54:06+08:00
• 1

  在Django休息框架中，有一个如何使用过滤器的正确规范 . 所以你的用户类看起来像 .

  class UserList(generics.ListAPIView):
      """
      List all users, or create a new user.
      """
      lookup_url_kwarg = "email"
      serializer_class = UserSerializer
  
      def get(self, request, format=None):
          if request.user.is_authenticated():
              users = User.objects.all()
              serializer = UserSerializer(users, many=True)
              return Response(serializer.data)
          return Response("User is not authenticated.", status=status.HTTP_400_BAD_REQUEST)
  
      def post(self, request, format=None):
  
          valid_paylaod, msg = UserListRepository.validations_create_user(request.data)
          if not valid_paylaod:
              return Response(msg, status=status.HTTP_400_BAD_REQUEST)
  
          result = UserListRepository.create_user_repo(request)
  
          if not result.success:
              return Response(str(result.msg), status=result.status )
  
          return Response(UserSerializer(result.data).data, status=result.status)
  
      def get_queryset(self):
          email = self.request.query_params.get('email', None)
          return User.objects.filter(email=email)
  

  或者你可以尝试没有get_queryset . 链接会改变，更新的链接是：

  localhost:8000/api/v1/users/abc.xzy@gmail.com/

  并且更新的代码是

  class UserList(generics.ListCreateAPIView):
          """
          List all users, or create a new user.
          """
          lookup_url_kwarg = "email"
          serializer_class = UserSerializer
  
          def get(self, request, email,format=None):
              if request.user.is_authenticated():
                  user_details = User.objects.filter(email=email)
                  serializer = UserSerializer(user_details, many=True)
                  return Response(serializer.data, status=status.status.HTTP_200_OK)
              return Response("User is not authenticated.", status=status.HTTP_400_BAD_REQUEST)
  
          def post(self, request, format=None):
  
              valid_paylaod, msg = UserListRepository.validations_create_user(request.data)
              if not valid_paylaod:
                  return Response(msg, status=status.HTTP_400_BAD_REQUEST)
  
              result = UserListRepository.create_user_repo(request)
  
              if not result.success:
                  return Response(str(result.msg), status=result.status )
  
              return Response(UserSerializer(result.data).data, status=result.status)
  

  回复于 2024-04-29T23:54:06+08:00
• 1

  我对UrlConf感到困惑：

  url(r'^api/v1/users/$', UserViews.UserList.as_view(), name='userlist_view'),
  url(r'^api/v1/users/(?P<email>.+)/$', UserViews.UserList.as_view(), name='userList_view'),
  

  • 第一个是 localhost:8000/api/v1/users/

  • 第二个是 localhost:8000/api/v1/users/abc.xzy@gmail.com/ 而不是 localhost:8000/api/v1/users/?email=abc.xzy@gmail.com/ ，这是一个查询参数而不是kwargs，如果你想查看这个use query parameter

  class UserList(generics.ListAPIView):
  """
  List all users, or create a new user.
  """
  lookup_url_kwarg = "email"
  serializer_class = UserSerializer
  
  def post(self, request, format=None):
  
      valid_paylaod, msg = UserListRepository.validations_create_user(request.data)
      if not valid_paylaod:
          return Response(msg, status=status.HTTP_400_BAD_REQUEST)
  
      result = UserListRepository.create_user_repo(request)
  
      if not result.success:
          return Response(str(result.msg), status=result.status )
  
      return Response(UserSerializer(result.data).data, status=result.status)
  def get_queryset(self):
  """
  It restricts the userlist by return users having emails passed in query param
  """
      queryset = Users.objects.all()
      email = self.request.query_params.get('email', None)
      if email is not None:
          queryset = queryset.filter(email=email)
      return queryset
  

  回复于 2024-04-29T23:54:06+08:00