/*
* 返回符合記錄的文章數量
* @description DEDE不允許執行子查詢，解決欄目下文章統計的問題
* @param $level 為真時查詢所有子類目
* */
function getTotalArcByTid($tid, $level=TRUE) {
global $dsql;

$level==TRUE && $tid = GetSonTypeID($tid);
$sql = "SELECT count(id) as total from `ym_archives` where typeid in($tid)";
$result = $dsql->GetOne($sql);
return $result['total'];
}

/*
* 遞歸獲取符合條件的子欄目
* @param $tid 欄目ID
* @return string
* */
function GetSonTypeID($tid)
{
global $dsql;
$dsql->SetQuery("Select id From `ym_arctype` where reid in($tid) And ishidden<>1 order by sortrank");
$dsql->Execute($tid);

$typeid = '';
while($row=$dsql->GetObject($tid))
{
  $typeid .= "{$row->id},";
  $typeid .= GetSonTypeID($row->id);
}

return trim($typeid,',');
}

模板中調用的方法一般為:{dede:field.typeid function="getTotalArcByTid(@me)"/}

或者

[field:typeid function="getTotalArcByTid(@me)"/]