python__Django 分頁

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自訂分頁的類：

#!/usr/bin/env python# -*- coding: utf-8 -*-# Created by Mona on 2017/9/20from django.utils.safestring import mark_safeclass Paginator:    ‘‘‘    頁碼的格式依賴於bootstrap；    使用案例：            from django.shortcuts import render,redirect,HttpResponse    from app01.models import *    from tools import page  匯入            def index(request):        base_url = request.path_info        total_item_count = UserInfo.objects.all().count()        current_page = int(request.GET.get(‘page‘,1))            page_obj = page.Paginator(total_item_count,current_page,base_url)            user_list = UserInfo.objects.all()[page_obj.start:page_obj.end]            return render(request,‘index.html‘,{‘user_list‘:user_list,‘html_page‘: page_obj.pager})        ‘‘‘    def __init__(self,total_item_count,current_page,base_url,
　　　　　　　　　　per_page_item_count=10,show_pager_count=11):        ‘‘‘        :param total_item_count: 總記錄數        :param current_page:  當前頁碼        :param base_url: 頁碼的首碼URL        :param per_page_item_count: 每頁顯示的記錄數        :param show_pager_count: 顯示的頁碼個數        ‘‘‘        self.total_item_count = total_item_count        self.current_page = current_page        self.base_url = base_url        self.per_page_item_count = per_page_item_count        self.show_pager_count = show_pager_count        total_page, res = divmod(self.total_item_count, self.per_page_item_count)        if res:            total_page += 1        self.total_page = total_page        self.half_show_pager_count = int(total_page/2)    @property    def start(self):        ‘‘‘        頁碼查詢資料的開始位置        :return:         ‘‘‘        return (self.current_page-1)*self.per_page_item_count    @property    def end(self):        ‘‘‘        頁碼查詢資料的結束位置        :return:         ‘‘‘        return self.current_page*self.per_page_item_count    @property    def pager(self):        ‘‘‘        返回需要的前端頁碼        :return:         ‘‘‘        page_list = []        ul = ‘ <ul class="pagination">‘        page_list.append(ul)        if self.current_page == 1:            prev = ‘ <li><a href="#">上一頁</a></li>‘        else:            prev = ‘ <li><a href="%s?page=%s">上一頁</a></li>‘ % (self.base_url, self.current_page - 1)        page_list.append(prev)        # 如果資料特別少：        if self.total_page < self.show_pager_count:            pager_start = 1            pager_end = self.total_page + 1        else:            if self.current_page <= self.half_show_pager_count:                pager_start = 1                pager_end = self.show_pager_count + 1            else:                if self.current_page + self.half_show_pager_count > self.total_page:                    pager_start = self.total_page - self.show_pager_count + 1                    pager_end = self.total_page + 1                else:                    pager_start = self.current_page - self.half_show_pager_count                    pager_end = self.current_page + self.half_show_pager_count + 1        for i in range(pager_start, pager_end):            if i == self.current_page:                tpl = ‘ <li class="active"><a href="%s?page=%s">%s</a></li>‘ % (self.base_url, i, i,)            else:                tpl = ‘ <li><a href="%s?page=%s">%s</a></li>‘ % (self.base_url, i, i,)            page_list.append(tpl)        if self.current_page == self.total_page:            nex = ‘ <li><a href="#">下一頁</a></li>‘        else:            nex = ‘ <li><a href="%s?page=%s">下一頁</a></li>‘ % (self.base_url, self.current_page + 1,)        page_list.append(nex)        lu = ‘ </ul>‘        page_list.append(lu)        html_page = mark_safe(‘‘.join(page_list))        return html_page

效果展示：

python__Django 分頁