织梦dedecms删除文章同时删除附件解决方法

/*
根据文档id获取文档的body部分
*/
function getArcBody($arcid)
{
global $dsql;
if(empty($arcid)) return ;
$body = '';
$query = "select arc.*,ch.addtable,ch.fieldset from `dede_arctiny` as arc left join `dede_channeltype` as ch on arc.channel=ch.id where arc.id=$arcid";
$row = $dsql->GetOne($query);
if(empty($row)) return ;
$addtable = $row['addtable'];
$fieldset = $row['fieldset'];
include_once(DEDEINC.'./dedetag.class.php');
$dtp = new DedeTagParse();
$dtp->SetNameSpace('field','<','>');
$dtp->LoadSource($fieldset);
if(is_array($dtp->CTags))
{
foreach($dtp->CTags as $tid=>$tag)
{
if($tag->GetAtt('type')=='htmltext')
{
$body = $tag->GetName();
break;
}
}
}
if(!empty($body))
{
$query = "select $body from `$addtable` where aid=$arcid";
$row = $dsql->GetOne($query);
$body = $row[$body];
return $body;
}
return ;
}
/*
解析文档内容的本地图片图片
*/
function get_img_from_body($body)
{
$result = array();
if(empty($body))
return $result;
preg_match_all('/\ssrc=([\"|\'])([^\1]*?)\.(gif|jpg|jpeg|png)\1/',$body,$res);
if(!empty($res[2]))
{
foreach($res[2] as $k=>$v)
{
$result[] = $v.'.'.$res[3][$k];
}
}
return $result;
}

$body = getArcBody($aid);

return true;

if($body)
{
$img_arr = get_img_from_body($body);
if(!empty($img_arr))
{
foreach($img_arr as $v)
{
$img_file = GetTruePath().str_replace($GLOBALS['cfg_basehost'],'',$v);
if(file_exists($img_file) && !is_dir($img_file))
@unlink($img_file);
}
}
}