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。

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