/**
  * Updates a particular model.
  * If update is successful, the browser will be redirected to the 'view' page.
  * @param integer $id the ID of the model to be updated
  */
 public function actionUpdate($id)
 {
     $this->_checkAccess('update');
     $quanTriVien = $this->loadModel($id);
     $PhanQuyen = Phanquyenquantri::model()->getAllAuthorizationById($quanTriVien->ma_qtv);
     $quanTriVien->setScenario('update');
     $quanTriVien->password = '';
     if (isset($_POST['Quantrivien'])) {
         $quanTriVien->attributes = $_POST['Quantrivien'];
         $quanTriVien->confirmPassword = $_POST['Quantrivien']['confirmPassword'];
         if ($quanTriVien->validate()) {
             if ($quanTriVien->password != '') {
                 $quanTriVien->password = Quantrivien::saltPassword($quanTriVien->password);
             } else {
                 unset($quanTriVien->password);
             }
             if ($quanTriVien->save(false)) {
                 //xóa quyền cũ
                 Phanquyenquantri::model()->deleteAllByAttributes(array('ma_qtv' => $quanTriVien->ma_qtv));
                 $roles = isset($_POST['role']) ? $_POST['role'] : '';
                 if ($roles) {
                     foreach ($roles as $role) {
                         $phanQuyen = new Phanquyenquantri();
                         $phanQuyen->ma_quyen = $role;
                         $phanQuyen->ma_qtv = $id;
                         $phanQuyen->save(false);
                     }
                 }
                 $this->redirect(array('admin'));
             }
         }
     }
     $this->render('update', array('model' => $quanTriVien, 'phanQuyen' => $PhanQuyen));
 }