thinkphp自訂商務邏輯有有關問題

thinkphp自訂商務邏輯有問題?
模型:

PHP code

class DepartmentModel extends Model{        public function getIndexDepart()    {        return 1;     }      

控制器

PHP code

 
 class IndexAction extends Action 
 { 
     public function index() 
     { 
 $a = D('Department'); 
 echo " 
"; 
 print_r($a->getIndexDepart()); 
 echo " 
"; 
         //echo THINK_PATH; 
     } 
  
 } 
 

可是TP提示:

Model:getIndexDepart您所請求的方法不存在！


求解


------解決方案--------------------

PHP code

class IndexAction extends Action{    public function index()    {        $a = D('Department');[color=#FF0000]        get_class($a);[/color]        echo "
";        print_r($a->getIndexDepart());        echo "
";        //echo THINK_PATH;    }}
