自定义分页（内容翻页器）
新建一个目录或者一个py文件（建议新建一个目录，目录中新建一个py文件，用来专门存放分页代码）
这里就创建了一个util目录my_page.py文件
把需要翻页的代码拷贝到my_page.py文件内
class Pagination(object): def __init__(self, current_page, all_count, per_page_num=2, pager_count=5): """ 封装分页相关数据 :param current_page: 当前页 :param all_count: 数据库中的数据总条数 :param per_page_num: 每页显示的数据条数 :param pager_count: 最多显示的页码个数 用法: queryset = model.objects.all() page_obj = Pagination(current_page,all_count) page_data = queryset[page_obj.start:page_obj.end] 获取数据用page_data而不再使用原始的queryset 获取前端分页样式用page_obj.page_html """ try: current_page = int(current_page) except Exception as e: current_page = 1 if current_page < 1: current_page = 1 self.current_page = current_page self.all_count = all_count self.per_page_num = per_page_num # 总页码 all_pager, tmp = divmod(all_count, per_page_num) if tmp: all_pager += 1 self.all_pager = all_pager self.pager_count = pager_count self.pager_count_half = int((pager_count - 1) / 2) @property def start(self): return (self.current_page - 1) * self.per_page_num @property def end(self): return self.current_page * self.per_page_num def page_html(self): # 如果总页码 < 11个： if self.all_pager <= self.pager_count: pager_start = 1 pager_end = self.all_pager + 1 # 总页码 > 11 else: # 当前页如果<=页面上最多显示11/2个页码 if self.current_page <= self.pager_count_half: pager_start = 1 pager_end = self.pager_count + 1 # 当前页大于5 else: # 页码翻到最后 if (self.current_page + self.pager_count_half) > self.all_pager: pager_end = self.all_pager + 1 pager_start = self.all_pager - self.pager_count + 1 else: pager_start = self.current_page - self.pager_count_half pager_end = self.current_page + self.pager_count_half + 1 page_html_list = [] # 添加前面的nav和ul标签 page_html_list.append(''' <nav aria-label='Page navigation>' <ul class='pagination'> ''') first_page = '<li><a href="?page=%s">首页</a></li>' % (1) page_html_list.append(first_page) if self.current_page <= 1: prev_page = '<li class="disabled"><a href="#">上一页</a></li>' else: prev_page = '<li><a href="?page=%s">上一页</a></li>' % (self.current_page - 1,) page_html_list.append(prev_page) for i in range(pager_start, pager_end): if i == self.current_page: temp = '<li class="active"><a href="?page=%s">%s</a></li>' % (i, i,) else: temp = '<li><a href="?page=%s">%s</a></li>' % (i, i,) page_html_list.append(temp) if self.current_page >= self.all_pager: next_page = '<li class="disabled"><a href="#">下一页</a></li>' else: next_page = '<li><a href="?page=%s">下一页</a></li>' % (self.current_page + 1,) page_html_list.append(next_page) last_page = '<li><a href="?page=%s">尾页</a></li>' % (self.all_pager,) page_html_list.append(last_page) # 尾部添加标签 page_html_list.append(''' </nav> </ul> ''') return ''.join(page_html_list)
返回之前的页面视图
加载上面创建的那个模块
from django.contrib.auth.decorators import login_required from app01.utils.my_page import Pagination # 后台管理 @login_required() def backend(request): # 获取文章表中站点是request.user.blog的数据 article_list = models.Article.objects.filter(blog=request.user.blog) # 分页器是针对你要分页的数据 # 第一步用户想访问的当前页码 current_page = request.GET.get('page',1) # 第二步数据总条数 all_count = article_list.count() page_obj = Pagination(current_page=current_page,all_count=all_count) # 对数据进行切分 page_queryset=article_list[page_obj.start:page_obj.end] return render(request, 'backend/backend.html', locals())
在web前端页面添加：
{#text-center居中设置#}
{#page_html是之前后端中创建文件my_page.py中的函数#}
<div class="text-center">{{ page_obj.page_html|safe }}</div>
实现效果：
#注意：设置单个页面数据展示和，展示分页数都是在my_page.py文件中设置的