thinkphp无限极分类实现方法

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());
 }
 }}
 ?>

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;
 }
 }
 ?>

 请选择父级栏目：
 根栏目
 
 
   {:str_repeat("　",$vo['count']-2)}
 {$vo['name']}
 
 
 

 新的栏目名称：