DRF分頁器

1.普通分頁器

​ 主要的四個屬性

#一頁返回的資料數,必傳
paginate.page_size = 2
#自定義一頁要返回的資料數,以get的形式傳,key為size
paginate.page_size_query_param = 'size'
#自定義頁碼數的名字為p,預設為page
paginate.page_query_param = 'p'
#一頁顯示最大的資料數
paginate.max_page_size = 3

​ 序列化資料的類

class BookXLH(serializers.ModelSerializer):
    class Meta:
        model = models.Book
        fields = '__all__'
 

​ 在檢視行數中的使用

from rest_framework.pagination import PageNumberPagination
class Books(ModelViewSet,APIView):
     def get_all_book(self,request,*args,**kwargs):
         books = models.Book.objects.all()
         paginate = PageNumberPagination()
         paginate.page_size = 2
         paginate.page_size_query_param = 'size'
         paginate.page_query_param = 'p'
         paginate.max_page_size = 3
         paginate_list = paginate.paginate_queryset(books,request,self)
         books_res = BookXLH(instance=paginate_list,many=True)
         response = {'msg':books_res.data}
         return Response(response)
 

​ 路由

url(r'^books/$',views.Books.as_view({'get':'get_all_book'}))

2.偏移分頁器

​ 主要的屬性

#每頁顯示的資料條數
pagination.default_limit = 4
#要偏移的標杆,在前端以get的形式傳,key為offset('可修改')
pagination.offset_query_param = 'offset'
#偏移量,,在前端以get的形式傳,key為limit('可修改')
pagination.limit_query_param = 'limit'
#一頁最大的顯示條數
pagination.max_limit = 2
 

​ 序列化的類

class BookXLH(serializers.ModelSerializer):
    class Meta:
        model = models.Book
        fields = '__all__'

​ 在檢視函式中的使用

from rest_framework.pagination import LimitOffsetPagination
class Books(ModelViewSet,APIView):
     def get_all_book(self,request,*args,**kwargs):
         books = models.Book.objects.all().order_by('nid')
         pagination = LimitOffsetPagination()

         pagination.default_limit = 4
         pagination.offset_query_param = 'offset'
         pagination.limit_query_param = 'limit'
         pagination.max_limit = 2
         paginate_list = pagination.paginate_queryset(books,request,self)

         books_res = BookXLH(instance=paginate_list,many=True)
         response = {'msg':books_res.data}
         return Response(response)

3.加密的分頁

​ 主要的屬性

#按nid排序
page.ordering = 'nid'
#查詢的key值
cursor_query_param = 'cursor'
#每頁顯示多少條
page_size = api_settings.PAGE_SIZE

​ 序列化的類

class BookXLH(serializers.ModelSerializer):
    class Meta:
        model = models.Book
        fields = '__all__'

​ 在檢視函式中的使用

from rest_framework.pagination import CursorPagination
class Books(ModelViewSet,APIView):
    def get_all_book(self,request,*args,**kwargs):
        books = models.Book.objects.all()
        paginate = CursorPagination()
        paginate.page_size=2
        paginate.ordering = 'nid'
        paginate_list = paginate.paginate_queryset(books,request,self)
        books_res = BookXLH(instance=paginate_list,many=True)
        response = {'msg':books_res.data}
        return paginate.get_paginated_response(books_res.data)