目录
- 前提
- 分页,看第n页,每页显示n条数据
- 分页,在n个位置,向后查看n条数据
- 加密分页,把上一页和下一页的id值记住
1, 前提
from rest_framework.pagination import PageNumberPagination, LimitOffsetPagination, CursorPagination
REST_FRAMEWORK = {
'PAGE_SIZE': 2
}
2, 分页,看第n页,每页显示n条数据
2.1 分页
class MyPageNumber(PageNumberPagination):
page_size = 2 # 每页显示多少条
page_size_query_param = 'size' # URL中每页显示条数的参数
page_query_param = 'page' # URL中页码的参数
max_page_size = None # 最大页码数限制
2.2 视图
class ArticleList(APIView):
def get(self, request, *args, **kwargs):
res = {"code": 0}
article_list = models.Article.objects.all().order_by("id")
# 分页
page_obj = MyPageNumber()
page_article = page_obj.paginate_queryset(queryset=article_list, request=request, view=self)
ser_obj = ArticleSerializer(page_article, many=True)
res["data"] = ser_obj.data
return Response(res)
2.3 返回带页码链接的响应
class ArticleList(APIView):
def get(self, request, *args, **kwargs):
res = {"code": 0}
article_list = models.Article.objects.all().order_by("id")
# 分页
page_obj = MyPageNumber()
page_article = page_obj.paginate_queryset(queryset=article_list, request=request, view=self)
ser_obj = ArticleSerializer(page_article, many=True)
res["data"] = ser_obj.data
return page_obj.get_paginated_response(res)
3, 分页,在n个位置,向后查看n条数据
3.1 分页
# offset分页
class MyLimitOffset(LimitOffsetPagination):
default_limit = 1
limit_query_param = 'limit'
offset_query_param = 'offset'
max_limit = 999
3.2 视图
class ArticleList(APIView):
def get(self, request, *args, **kwargs):
res = {"code": 0}
article_list = models.Article.objects.all().order_by("id")
# 分页
page_obj = MyLimitOffset()
page_article = page_obj.paginate_queryset(queryset=article_list, request=request, view=self)
ser_obj = ArticleSerializer(page_article, many=True)
res["data"] = ser_obj.data
return page_obj.get_paginated_response(res)
4, 加密分页,把上一页和下一页的id值记住
4.1 分页
# 加密分页
class MyCursorPagination(CursorPagination):
cursor_query_param = 'cursor'
page_size = 1
ordering = '-id'
4.2 视图
class ArticleList(APIView):
def get(self, request, *args, **kwargs):
res = {"code": 0}
article_list = models.Article.objects.all().order_by("id")
# 分页
page_obj = MyCursorPagination()
page_article = page_obj.paginate_queryset(queryset=article_list, request=request, view=self)
ser_obj = ArticleSerializer(page_article, many=True)
res["data"] = ser_obj.data
# return Response(res)
return page_obj.get_paginated_response(res)