ComboTree中的会计科目树形菜单实现方法

namespace HomeModel;

use ThinkModel;

class AccountModel extends Model{

  publicfunctiongetTreeList(){ 

  $data = $this->field('id,code,name,islast')->select();

  foreach($data as &$v){       //这里加入了元素pid，用来标识父级id的   

   $len = strlen($v['code']);

   if($len == 3){          //这里假设长度为3位的科目编码是一级,5位为二级科目，7位为三级，以此类推

    $v['pid'] = 0;

   }else{

    $v['pid'] = substr($v['code'],0,$len-2);

   } 

  }

  return$this->createTree($data);//生成ComboTree所需的数据结构

 }

 //递归的方式生成子树

 privatefunctioncreateSubTree($data,$pid){

  $tree = array();

  foreach($data as $k=>$v){

   if($v['pid'] == $pid){

    $newDate = array(

     'id'=> $v['id'],

     'text'=>$v['name'],

     'state'=>($v['islast'] != 1)?'closed':'open'

    );

    if($v['islast'] != 1){        //如果不是末级科目调用自身生成子数据

     $subData = $this->createSubTree($data,$v['code']);

     if(!empty($subData)){

      $newDate['children'] = $subData; 

     }

    }

    array_push($tree,$newDate);

   }  

  }

  return$tree;

 }

 //生成树,先从一级会计科目分类开始创建树形菜单数据

 privatefunctioncreateTree($data){ 

  $ret = array();

  foreach($data as $k => $v){

   if($v['pid'] == 0){

    $newDate = array( //创建为ComboTree能够识别的格式，这里我没有更好的办法了，只能这样处理

     'id'=> $v['id'],

     'text'=>$v['name'],

     'state'=>'closed'

    );

    $subData = $this->createSubTree($data,$v['code']);

    if(!empty($subData)){

     $newDate['children'] = $subData; 

    }

    $ret[] = $newDate;

   }   

  }

  return$ret;

 } 

}