namespace Home\Model;
use Think\Model;

class AccountModel extends Model{

　　public function getTreeList(){  
  $data = $this->field('id,code,name,islast')->select(); 
  foreach($data as &$v){　　　　　　　 //這里加入了元素pid，用來(lái)標(biāo)識(shí)父級(jí)id的　　　
   $len = strlen($v['code']);
   if($len == 3){　　　　　　　　　　//這里假設(shè)長(zhǎng)度為3位的科目編碼是一級(jí),5位為二級(jí)科目，7位為三級(jí)，以此類推
    $v['pid'] = 0; 
   } else {
    $v['pid'] = substr($v['code'],0,$len-2); 
   }  
  }
  return $this->createTree($data); //生成ComboTree所需的數(shù)據(jù)結(jié)構(gòu)
 }
 
 //遞歸的方式生成子樹
 private function createSubTree($data,$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){　　　　　　　　//如果不是末級(jí)科目調(diào)用自身生成子數(shù)據(jù)
     $subData = $this->createSubTree($data,$v['code']);
     if(!empty($subData)){
      $newDate['children'] = $subData;  
     }
    }
    array_push($tree,$newDate);
   }   
  } 
  return $tree;
 }
 
 //生成樹,先從一級(jí)會(huì)計(jì)科目分類開(kāi)始創(chuàng)建樹形菜單數(shù)據(jù)
 private function createTree($data){  
  $ret = array();
  foreach($data as $k => $v){
   if($v['pid'] == 0){
    $newDate = array(  //創(chuàng)建為ComboTree能夠識(shí)別的格式，這里我沒(méi)有更好的辦法了，只能這樣處理
     'id' => $v['id'],
     'text'=>$v['name'],
     'state'=>'closed'
    ); 
    $subData = $this->createSubTree($data,$v['code']);
    if(!empty($subData)){
     $newDate['children'] = $subData;  
    }
    $ret[] = $newDate; 
   }    
  }
  return $ret;
 }  
}