def get_queryset(self):
  start = self.request.query_params.get('fault_start_time', None)
  stop = self.request.query_params.get('fault_end_time', None)
  if start and stop:
    return models.ServerFaultRecord.objects.filter(fault_start_time__gte=start).filter(fault_end_time__lte=stop)
  return models.ServerFaultRecord.objects.all()

from django_filters import rest_framework

class DoctorsFilter(rest_framework.FilterSet):
  authentication_classes = [TokenAuthentication]
  #开始时间
  start_date = rest_framework.DateFilter(field_name='start_date', lookup_expr='gte')
  #结束时间
  end_date = rest_framework.DateFilter(field_name='end_date', lookup_expr='lte')

from django_filters.rest_framework import DjangoFilterBackend
from rest_framework.viewsets import ModelViewSet
class DoctorsViewSet(ModelViewSet):

   filter_backends = [DjangoFilterBackend]
   #过滤其他的字段
   filter_fields = ('id', 'patient', 'doc_type',)    #指向要过滤的类
   filter_class = DoctorsFilter

#1.导入OrderingFilter
from rest_framework.filters import OrderingFilter

#2.在类中的使用
class CarsModelViewSet(ModelViewSet):
  
      queryset =models的类
      serializer_class=序列化组件
　　　　 　　　　filter_backends = [OrderingFilter]
　　　　　　　　#/api/cars/?ordering=-id 倒序　　     #/api/cars/?ordering=id 正序
      ordering_fields = ('id', )