yii分页组件用法实例分析


            本文实例讲述了yii分页组件用法。分享给大家供大家参考，具体如下：

该案例使用时，分页类在yii框架中以组件的形式存在于components中。

action代码如下：





public function actionIndex(){

  $user=User::model();

  //分页的使用

  $count=$user->count(); //获取总页数

  $pagesize=3; //每一页显示的记录条数

  $page=new Page($count,$pagesize);

  $sql="select * from {{user}} $page->limit";

  $info=$user->findAllBySql($sql);

  $show_page=$page->fpage();

  $this->renderPartial("index",array("info"=>$info,'show_page'=>$show_page));

}







在view页面，遍历info即可获取信息，输出show_page即可显示分页列表等信息。

现附上page.php代码如下：





<?php

/**

 * 分页类，以组件形式存在于componnets文件中

 */

class Page {

  private $total; //数据表中总记录数

  private $listRows; //每页显示行数

  private $limit;

  private $uri;

  private $pageNum; //页数

  private $config=array('header'=>"个记录", "prev"=>"上一页", "next"=>"下一页", "first"=>"首 页", "last"=>"尾 页");

  private $listNum=8;

  /*

   * $total

   * $listRows

   */

  public function __construct($total, $listRows=10, $pa=""){

   $this->total=$total;

   $this->listRows=$listRows;

   $this->uri=$this->getUri($pa);

   $this->page=!empty($_GET["page"]) ? $_GET["page"] : 1;

   $this->pageNum=ceil($this->total/$this->listRows);

   $this->limit=$this->setLimit();

  }

  private function setLimit(){

   return "Limit ".($this->page-1)*$this->listRows.", {$this->listRows}";

  }

  private function getUri($pa){

   $url=$_SERVER["REQUEST_URI"].(strpos($_SERVER["REQUEST_URI"], '?')?'':"?").$pa;

   $parse=parse_url($url);

   if(isset($parse["query"])){

    parse_str($parse['query'],$params);

    unset($params["page"]);

    $url=$parse['path'].'?'.http_build_query($params);

   }

   return $url;

  }

  function __get($args){

   if($args=="limit")

    return $this->limit;

   else

    return null;

  }

  private function start(){

   if($this->total==0)

    return 0;

   else

    return ($this->page-1)*$this->listRows+1;

  }

  private function end(){

   return min($this->page*$this->listRows,$this->total);

  }

  private function first(){

      $html='';

   if($this->page==1)

    $html.='';

   else

    $html.=" <a href='{$this->uri}&page=1'>{$this->config["first"]}</a> ";

   return $html;

  }

  private function prev(){

      $html='';

   if($this->page==1)

    $html.='';

   else

    $html.=" <a href='{$this->uri}&page=".($this->page-1)."'>{$this->config["prev"]}</a> ";

   return $html;

  }

  private function pageList(){

   $linkPage="";

   $inum=floor($this->listNum/2);

   for($i=$inum; $i>=1; $i--){

    $page=$this->page-$i;

    if($page<1)

     continue;

    $linkPage.=" <a href='{$this->uri}&page={$page}'>{$page}</a> ";

   }

   $linkPage.=" {$this->page} ";

   for($i=1; $i<=$inum; $i++){

    $page=$this->page+$i;

    if($page<=$this->pageNum)

     $linkPage.=" <a href='{$this->uri}&page={$page}'>{$page}</a> ";

    else

     break;

   }

   return $linkPage;

  }

  private function next(){

      $html='';

   if($this->page==$this->pageNum)

    $html.='';

   else

    $html.=" <a href='{$this->uri}&page=".($this->page+1)."'>{$this->config["next"]}</a> ";

   return $html;

  }

  private function last(){

      $html='';

   if($this->page==$this->pageNum)

    $html.='';

   else

    $html.=" <a href='{$this->uri}&page=".($this->pageNum)."'>{$this->config["last"]}</a> ";

   return $html;

  }

  private function goPage(){

   return ' <input type="text" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value;location=\''.$this->uri.'&page=\'+page+\'\'}" value="'.$this->page.'" style="width:25px"><input type="button" value="GO" onclick="javascript:var page=(this.previousSibling.value>'.$this->pageNum.')?'.$this->pageNum.':this.previousSibling.value;location=\''.$this->uri.'&page=\'+page+\'\'"> ';

  }

  function fpage($display=array(0,1,2,3,4,5,6,7,8)){

   $html[0]=" 共有<b>{$this->total}</b>{$this->config["header"]} ";

   $html[1]=" 每页显示<b>".($this->end()-$this->start()+1)."</b>条，本页<b>{$this->start()}-{$this->end()}</b>条 ";

   $html[2]=" <b>{$this->page}/{$this->pageNum}</b>页 ";

   $html[3]=$this->first();

   $html[4]=$this->prev();

   $html[5]=$this->pageList();

   $html[6]=$this->next();

   $html[7]=$this->last();

   $html[8]=$this->goPage();

   $fpage='';

   foreach($display as $index){

    $fpage.=$html[$index];

   }

   return $fpage;

  }

}







希望本文所述对大家基于yii框架的PHP程序设计有所帮助。