Django之drf分页器使用
# 分页器使用# 查询所有，才需要分页
from rest_framework.generics import ListAPIView
# 内置分页器三种方式
from rest_framework.pagination import PageNumberPagination,LimitOffsetPagination,CursorPagination
'''
PageNumberPagination
page_size:每页显示的条数
'''
# PageNumberPagination 用的比较多
class MyPageNumberPagination(PageNumberPagination):
# http://127.0.0.1/api/book2/?aaa=1&size=6
page_size = 3 # 每页条数
page_query_param = 'aaa'#查询第几页的key
page_size_query_param = 'size'# 每一页显示的条数
max_page_size = 5 # 每页显示最大的条数
# LimitOffsetPagination
class MyLimitOffsetPagination(LimitOffsetPagination):
# default_limit = 3 # 每页条数
# limit_query_param = 'limit' # 往后拿几条
# offset_query_param = 'offset' # 标杆
# max_limit = 5 # 每页最大几条
# CursorPagination查询效率最高
# class MyCursorPagination(CursorPagination):
# cursor_query_param = 'cursor'# 每一页查询的key
# page_size = 2 #每页显示的条数
# ordering = '-id'#排序字段
class BookView(ListAPIView):
queryset = models.Book.objects.all()
serializer_class = BookModelSerializer
# 配置分页
pagination_class = MyPageNumberPagination
# 如果使用APIView分页/genericAPIView分页
# from utils.throttling import MyThrottle
# class BookView(APIView):
# # throttle_classes =
# def get(self,request,*args,**kwargs):
# book_list=models.Book.objects.all()
# # 实例化得到一个分页器对象
# page_cursor=MyPageNumberPagination()
#
# book_list=page_cursor.paginate_queryset(book_list,request,view=self)
# next_url =page_cursor.get_next_link()
# pr_url=page_cursor.get_previous_link()
# # print(next_url)
# # print(pr_url)
# book_ser=BookModelSerializer(book_list,many=True)
# return Response(data=book_ser.data)
页:
[1]