thinkphp 无限极分类的数据库设计及效果测试

控制器继承IndexAction.class.php

 <?php // 本类由系统自动生成，仅供测试用途 class IndexAction extends CateAction { } ?> 

控制器代码CateAction.class.php

<?php

class CateAction extends Action{

function index(){

$cate=M('Cate');

$list=$cate->field("id,name,pid,path,concat(path,'-',id) as bpath")->order('bpath')->select();

foreach($list as $key=>$value){

$list[$key]['count']=count(explode('-',$value['bpath']));

}

$this->assign('alist',$list);

$this->display();

}//添加栏目

function add(){

$cate=new CateModel();if($vo=$cate->create()){

if($cate->add()){

$this->success('添加栏目成功');

}else{

$this->error('添加栏目失败');

}

}else{

$this->error($cate->getError());

}

}}

?>

模块代码CateModel.class.php

<?php

class CateModel extends Model{//对应数据库中的表xp_cate

protected $_auto=array(

array('path','tclm',3,'callback'),

);function tclm(){

$pid=isset($_POST['pid'])?(int)$_POST['pid']:0;

echo ($pid);

if($pid==0){

$data=0;

}else{

$list=$this->where("id=$pid")->find();

$data=$list['path'].'-'.$list['id'];//子类的path为父类的path加上父类的id

}

return $data;

}

}

?>

模板代码index.html

<form action="__URL__/add" method="post">
请选择父级栏目：<select name="pid" size="20">
<option value="0">根栏目</option>
<volist name="alist" id="vo">
<option value="{$vo['id']}">
<for start="0" end="$vo['count']">
&nbsp;&nbsp;
</for>
{$vo['name']}
</option>
</volist>
</select><br />
新的栏目名称：<input type="text" name="name" /><br />
<input type="submit" value="添加栏目" />
</form>

原文地址：http://www.thinkphp.cn/topic/2389.html