DeDeCms修改责任编辑无效的解决方法

<?php 
if(!defined('DEDEINC')) exit('Request Error!'); 

function lib_adminname(&$ctag, &$refObj) 
{ 
global $dsql; 
if(empty($refObj->Fields['dutyadmin'])) 
{ 
$dutyadmin = $GLOBALS['cfg_df_dutyadmin']; 
} 
else 
{ 
$row = $dsql->GetOne("Select dutyadmin From `dede_archives` where id='{$refObj->Fields['dutyadmin']}' "); 
$dutyadmin = isset($row['uname']) ? $row['uname'] : $GLOBALS['cfg_df_dutyadmin']; 
} 
return $dutyadmin; 
} 

?>