rest_framework--过滤器get_queryset

drf过滤–get_queryset

• 过滤queryset

  from rest_framework.pagination import PageNumberPagination
  from rest_framework import mixins
  from rest_framework import viewsets
  
  from .models import Goods
  from .serializers import GoodsSerializer
  
  
  class GoodsPagination(PageNumberPagination):
      page_size = 10
      page_size_query_param = "page_size"
      page_query_param = "p"
      max_page_size = 100
  
  
  class GoodsListViewSet(mixins.ListModelMixin, viewsets.GenericViewSet):
      # 指定queryset
      # queryset = Goods.objects.all()
  
      # 指定序列化类
      serializer_class = GoodsSerializer
  
      # 指定分页类
      pagination_class = GoodsPagination
  		
      # 这里用了get_queryset来指定queryset 那么我们上面的query_set可以省略不写, 但是前提是在注册路由是需要加个base_name
      def get_queryset(self):
          return Goods.objects.filter(shop_price__gt=100)
  

• url

  from django.conf.urls import url, include
  
  from rest_framework.routers import DefaultRouter
  
  from goods.views import GoodsListViewSet
  # 生成一个注册器实例对象
  router = DefaultRouter()
  # 将需要自动生成url的接口注册, 指定base_name
  # 配置goods的url
  router.register(r'goods', GoodsListViewSet, base_name="goods-list")
  
  urlpatterns = [
      # 自动生成url
      url(r"^", include(router.urls)),
  ]
  

• settings

  INSTALLED_APPS = [
      'rest_framework',
  ]