TP3.2框架分页相关实现方法分析

<?php
namespace home\controller;
use think\controller;
class basecontroller extends controller {
    /**
     * 基础分页的相同代码封装,使前台的代码更少
     * @param $count 要分页的总记录数
     * @param int $pagesize 每页查询条数
     * @return \think\page
    */
    function getpage($count, $pagesize = 20,$waps) {
          $page = new \think\page($count,$pagesize,$waps);
     $page->rollpage = 5;
     $page->setconfig('header', '<li class="rows">第<b>%now_page%</b>页/共<b>%total_page%</b>页</li>');
       $page->setconfig('prev', '上一页');
       $page->setconfig('next', '下一页');
     $page->setconfig('last', '末页');
         $page->setconfig('first', '首页');
         $page->setconfig('theme', '%first%%up_page%%link_page%%down_page%%end%%header%');
         $page->lastsuffix = false;//最后一页不显示为总页数
         return $page;
    }
    /**
     * @param $model     模型
     * @param $map         where条件
     * @param $find      0 select 1=find 2=关联表
     * @return $list     数组
    */
    function _select($model,$map,$order='',$field="",$find="0",$limit=20,$join,$param){
        $waps = $param;
        if(empty($model) && empty($map)){
            $this->list = array();
        }else{
            if($find == 0){
                $count = $model->where($map)->count();
                $page = $this->getpage($count,$limit,$waps);
                if($page->firstrow < 0){
                    $page->firstrow = 0;
                }
                if($order != ""){
                    $this->list = $model->field($field)->where($map)->order($order)->limit($page->firstrow. ',' . $page->listrows)->select();
                }else{
                    $this->list = $model->field($field)->where($map)->limit($page->firstrow. ',' . $page->listrows)->select();    
                }
                $this->page = $page->show();
            }else if($find == 1){
                $this->list = $model->field($field)->where($map)->find();
            }else if($find == 3){
                $count = $model->alias("t1")->join($join)->where($map)->count(); 
                $page = $this->getpage($count,$limit,$waps);
                if($page->firstrow < 0){
                    $page->firstrow = 0;
                }
                if($order != ""){
                    $this->list = $model->alias("t1")->join($join)->field($field)->where($map)->order($order)->limit($page->firstrow. ',' . $page->listrows)->select();
                }else{
                    $this->list = $model->alias("t1")->join($join)->field($field)->where($map)->limit($page->firstrow. ',' . $page->listrows)->select();    
                }
                $this->page = $page->show();
            }else if($find == 4){
                if($order != ""){
                    $this->list = $model->alias("t1")->join($join)->field($field)->where($map)->order($order)->limit($page->firstrow. ',' . $page->listrows)->find();
                }else{
                    $this->list = $model->alias("t1")->join($join)->field($field)->where($map)->limit($page->firstrow. ',' . $page->listrows)->find();    
                }
            }
            $this->limit = $page->firstrow;
            $this->assign("listinfo",$this->list);
            $this->assign("page",$this->page);
            return($this->list);
        }
    }
}

if($this->txt_keyword){
    $where['m_title'] = array('like','%'.$this->txt_keyword.'%');
}
 
$where['status'] = $param['status'] = 0;
$this->_select($this->information_mod,$where,'','*',0,10,'',$param);
$this->display();

<div class="hg_page" >
   {$page}
</div>

<style>
 .hg_page .first, .hg_page .current, .hg_page .num, .hg_page .next, .hg_page .end, .hg_page .rows, .hg_page .prev{
  float: left;
  height: 37px;
  padding: 0 15px;
  border: 1px solid #e5e5e5;
  line-height: 37px;
  margin: 0 3px;
 }
 .hg_page{
  text-align: center;
  height: 37px;
  margin:0 auto;
  margin-top: 30px;
  margin-bottom: 20px;
  width: 800px;
 }
</style>