Django自定义分页完整版带保留搜索字段功能

本文继自定义分页完整版之后的又一个改进版本,带上了保留字段,

上一篇地址:https://www.cnblogs.com/apollo1616/articles/9925787.html

本文只粘贴pager文件替换原文的pager文件,html替换原文的test.html文件

views.py文件内容

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import copy

class Pagination(object):
    # 封装分页相关数据
    def __init__(self, request, current_page, record_count, page_record_limit, page_count_limit):
        """
        :param page_count:          总页数
        :param record_count:         数据总个数
        :param page_range:             页的范围
        :param page_count_limit:    最多显示页面
        :param page_record_limit:    每页显示的行数
        :param page_record_list:    页面数据列表
        :param current_page:        当前页
        :param page_mid:            页面显示页码中间位置页码
        """
        self.params = copy.deepcopy(request.GET)
        # 当前页码
        try:
            current_page = int(current_page)
            if current_page <= 1:
                current_page = 1
        except Exception as e:
            current_page = 1
        self.current_page = current_page
        # 数据总个数
        self.record_count = record_count
        # 每页显示的行数
        self.page_record_limit = page_record_limit
        # 总页数(数据总个数record_count / 每页显示的行数page_record_limit)
        # [数据总个数]对[每页显示的行数]取余,如果余数为0,总页数等于商,否则等于商+1
        page_count, tmp = divmod(record_count, page_record_limit)
        if tmp:
            page_count += 1
　　　　　　　self.page_count = page_count
        else:
            self.page_count = page_count
        # 页面页数显示限制(要奇数,便于对称显示)
        self.page_count_limit = page_count_limit

    # 每页第一条数据
    @property
    def start(self):
        return (self.current_page - 1) * self.page_record_limit

    # 每页最后一条数据
    @property
    def end(self):
        return self.current_page * self.page_record_limit

    def page_range(self):

        # 如果,总页码[小于]最多显示页面：
        if self.page_count <= self.page_count_limit:
            page_start = 1
            page_end = self.page_count + 1
        # 如果,总页码[大于]最多显示页面：
        else:
            # 页面显示页码中间位置页码
            self.page_mid = int(self.page_count_limit - 1) // 2
            if self.current_page <= self.page_mid:
                page_start = 1
                page_end = self.page_count_limit + 1
            else:
                if (self.current_page + self.page_mid) > self.page_count:
                    page_start = self.page_count - self.page_count_limit + 1
                    page_end = self.page_count + 1
                else:
                    page_start = self.current_page - self.page_mid
                    page_end = self.current_page + self.page_mid + 1
        return range(page_start, page_end)

    # 页面显示页码的控制
    def page_html(self):
        # 准备页面渲染的数据
        page_record_list = []
        # 首页
        first_page = '
首页' % (1,)
        page_record_list.append(first_page)

        # 处理上一页
        if self.current_page <= 1:
            prev_page = '
上一页'
        else:
            prev_page = '
上一页' % (self.current_page - 1,)
        page_record_list.append(prev_page)

################ 点击页码保留搜索条件 ################

        # 页码显示部分
        for i in self.page_range():
            self.params["page"] = i
            if i == self.current_page:
                temp = '
%s' % (self.params.urlencode(), i)
            else:
                temp = '
%s' % (self.params.urlencode(), i,)
            page_record_list.append(temp)
################ 点击页码保留搜索条件 ################


        # 处理下一页
        if self.current_page >= self.page_count:
            next_page = '
下一页'
        else:
            next_page = '
下一页' % (self.current_page + 1,)
        page_record_list.append(next_page)

        # 尾页
        last_page = '
尾页' % (self.page_count,)
        page_record_list.append(last_page)

        return ''.join(page_record_list)

 

test.html文件内容

"en">

    "UTF-8">
    
    
    "stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
          integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
    
    
    
    


class="container">
    
class="page-header">
        
自定义分页器
             阿波罗图书管理系统
        
    
    
class="row">
        
class="col-md-6 col-md-offset-3">
            
"" method="get">
                
class="form-group col-md-10" style="padding: 0">
                    class="sr-only" for="search">请输入关键词搜索
                    
class="input-group">
                        
class="input-group-addon">class="glyphicon glyphicon-search">
                        "text" class="form-control" id="search" name=" " placeholder="请输入关键词搜索">
                    
                
                
"padding-left: 5px" class="col-md-2">
                    "submit" class="btn btn-primary " >百度一下
                
            
        
    
    
class="row">
        
class="col-md-6 col-md-offset-3">
            class="table table-bordered table-hover table-striped">
                
                {% for row in data %}
                    
                {% endfor %}
            

                

                    
姓名
                    
年龄
                
                

                        
{{ row.name }}
                        
{{ row.age }}
                    
        

        {# 分页样式 #}
        
class="col-md-6 col-md-offset-3">
            
class="pagination pagination-sm">
                {{ page_obj.page_html|safe }}
            
        
    

 

self.page_count = page_count

转载于:https://www.cnblogs.com/apollo1616/articles/9926040.html