django【第五篇】分页
django分页
# 分页代码
def getPage(request, article_list):
# 每页2条
paginator = Paginator(article_list, 2)
try:
# 用户没有传值，默认page为1
page = int(request.GET.get('page', 1))
article_list = paginator.page(page)
except (EmptyPage, InvalidPage, PageNotAnInteger):
# 出异常默认显示第一页
article_list = paginator.page(1)
return article_list
{#<div id="pagination">#}
{#<ul id="pagination-flickr">#}
{#<li class="previous-off">«上一页</li>#}
{# <li class="active">1/10</li>#}
{# <li class="next"><a href="?page=8">下一页 »</a></li>#}
{#</ul>#}
{#</div>#}
<div id="pagination">
<ul id="pagination-flickr">
{% if article_list.has_previous %}
<li class="previous"><a href="?page={{ article_list.previous_page_number }}{% if request.GET.year %}&year={{ request.GET.year }}{% endif %}{% if request.GET.month %}&month={{ request.GET.month }}{% endif %}{% if request.GET.cid %}&cid={{ request.GET.cid }}{% endif %}">«上一页</a></li>
{% else %}
<li class="previous-off">«上一页</li>
{% endif %}
<li class="active">{{ article_list.number }}/{{ article_list.paginator.num_pages }}</li>
{% if article_list.has_next %}
<li class="next"><a href="?page={{ article_list.next_page_number }}{% if request.GET.year %}&year={{ request.GET.year }}{% endif %}{% if request.GET.month %}&month={{ request.GET.month }}{% endif %}{% if request.GET.cid %}&cid={{ request.GET.cid }}{% endif %}">下一页 »</a></li>
{% else %}
<li class="next-off">下一页 »</li>
{% endif %}
</ul>
</div>
通用分页插件
class PageInfo(object): def __init__(self,current_page,all_count,per_page,base_url,show_page=11): """ :param current_page: :param all_count: 数据库总行数 :param per_page: 每页显示函数 :return: """ try: self.current_page = int(current_page) except Exception as e: self.current_page = 1 self.per_page = per_page a,b = divmod(all_count,per_page) if b: a = a +1 self.all_pager = a self.show_page = show_page self.base_url = base_url def start(self): return (self.current_page-1) * self.per_page def end(self): return self.current_page * self.per_page def pager(self): page_list = [] half = int((self.show_page-1)/2) # 如果数据总页数 < 11 if self.all_pager < self.show_page: begin = 1 stop = self.all_pager + 1 # 如果数据总页数 > 11 else: # 如果当前页 <=5,永远显示1,11 if self.current_page <= half: begin = 1 stop = self.show_page + 1 else: if self.current_page + half > self.all_pager: begin = self.all_pager - self.show_page + 1 stop = self.all_pager + 1 else: begin = self.current_page - half stop = self.current_page + half + 1 if self.current_page <= 1: prev = "<li><a href='#'>上一页</a></li>" else: prev = "<li><a href='%s?page=%s'>上一页</a></li>" %(self.base_url,self.current_page-1,) page_list.append(prev) for i in range(begin,stop): if i == self.current_page: temp = "<li class='active'><a href='%s?page=%s'>%s</a></li>" %(self.base_url,i,i,) else: temp = "<li><a href='%s?page=%s'>%s</a></li>" %(self.base_url,i,i,) page_list.append(temp) if self.current_page >= self.all_pager: nex = "<li><a href='#'>下一页</a></li>" else: nex = "<li><a href='%s?page=%s'>下一页</a></li>" %(self.base_url,self.current_page+1,) page_list.append(nex) return ''.join(page_list)
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <link rel="stylesheet" href="/static/plugins/bootstrap-3.3.7-dist/css/bootstrap.css" /> </head> <body> <h1>用户列表</h1> <ul> {% for row in user_list %} <li>{{ row.name }}</li> {% endfor %} </ul> <nav aria-label="Page navigation"> <ul class="pagination"> {{ page_info.pager|safe }} </ul> </nav> </body> </html>
""" from django.conf.urls import url from django.contrib import admin from app01 import views urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^custom.html$', views.custom), ]
from django.shortcuts import render,HttpResponse from utils.pager import PageInfo from app01 import models def custom(request): # 表示用户当前想要访问的页码: 8 all_count = models.UserInfo.objects.all().count() page_info = PageInfo(request.GET.get('page'),all_count,10,'/custom.html',11) user_list = models.UserInfo.objects.all()[page_info.start():page_info.end()] return render(request,'custom.html',{'user_list':user_list,'page_info':page_info})
谢谢
