Django实现分页功能

 class Paginator(object): def __init__(self, object_list, per_page, orphans=0, allow_empty_first_page=True): self.object_list = object_list self.per_page = int(per_page) self.orphans = int(orphans) self.allow_empty_first_page = allow_empty_first_page ……

 #!/usr/bin/env python # _*_ coding:utf-8 _*_ import os from django.core.paginator import Paginator objects = ['john','paul','george','ringo','lucy','meiry','checy','wind','flow','rain']
 p = Paginator(objects,3) # 3条数据为一页，实例化分页对象 print p.count # 10 对象总共10个元素 print p.num_pages # 4 对象可分4页 print p.page_range # xrange(1, 5) 对象页的可迭代范围 page1 = p.page(1) # 取对象的第一分页对象 print page1.object_list # 第一分页对象的元素列表['john', 'paul', 'george'] print page1.number # 第一分页对象的当前页值 1 page2 = p.page(2) # 取对象的第二分页对象 print page2.object_list # 第二分页对象的元素列表 ['ringo', 'lucy', 'meiry'] print page2.number # 第二分页对象的当前页码值 2 print page1.has_previous() # 第一分页对象是否有前一页 False print page1.has_other_pages() # 第一分页对象是否有其它页 True print page2.has_previous() # 第二分页对象是否有前一页 True print page2.has_next() # 第二分页对象是否有下一页 True print page2.next_page_number() # 第二分页对象下一页码的值 3 print page2.previous_page_number() # 第二分页对象的上一页码值 1 print page2.start_index() # 第二分页对象的元素开始索引 4 print page2.end_index() # 第2分页对象的元素结束索引 6

 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger from django.shortcuts import render def listing(request): contact_list = Contacts.objects.all() paginator = Paginator(contact_list, 25) # Show 25 contacts per page page = request.GET.get('page') try: contacts = paginator.page(page) except PageNotAnInteger: # If page is not an integer, deliver first page. contacts = paginator.page(1) except EmptyPage: # If page is out of range (e.g. 9999), deliver last page of results. contacts = paginator.page(paginator.num_pages) return render(request, 'list.html', {'contacts': contacts})

 {% for contact in contacts %} {# Each "contact" is a Contact model object. #} {{ contact.full_name|upper }}
 ... {% endfor %} 
  {% if contacts.has_previous %} previous {% endif %}  Page {{ contacts.number }} of {{ contacts.paginator.num_pages }}.  {% if contacts.has_next %} next {% endif %} 

 polls/ __init__.py models.py templatetags/ __init__.py poll_extras.py views.py

 {% load poll_extras %}