from rest_framework.pagination import PageNumberPagination


class CustomPageNumberPagination(PageNumberPagination):
    # page_query_param = "" # 地址上面代表页码的变量名，默认为page
    page_size = 5  # 每一页显示的数据量，没有设置页码，则不进行分页
    # 允许客户端通过指定的参数名来设置每一页数据量的大小，默认是size
    page_size_query_param = "size"
    max_page_size = 20  # 限制每一页最大展示的数据量

class CourseListApiView(ListAPIView):
    # 指定过滤和排序类
    filter_backends = [DjangoFilterBackend, OrderingFilter, ]
    # 指定过滤字段
    filter_fields = ('course_category',)
    # 指定排序字段
    ordering_fields = ('id', 'students', 'price')
    queryset = Course.objects.filter(is_show=True).order_by('orders', '-id')
    serializer_class = CourseSerializer
    pagination_class = CustomPageNumberPagination

测试