织梦dedecms根据下级栏目获得顶级栏目名称的SQL语句

适用于 DEDE5.5,可能会有点影响速度,不过如果你站的数据不大的话可以忽略不计了。 
  
代码如下: 
{dede:field.typeid runphp='yes'} 
$ID = @me; 
$sql = "SELECT * FROM `dede_arctype` WHERE id=$ID"; 
$query = mysql_query($sql); 
$row=mysql_fetch_array($query); 
$relID = "$row[reid]"; 
if($relID == 0) {@me = $row[typename];} 
else{ 
$sql = "SELECT `typename` FROM `dede_arctype` WHERE id=$relID"; 
$query = mysql_query($sql); 
$row=mysql_fetch_array($query); 
@me = $row[typename]; 

{/dede:field.typeid} 
  
============================================================== 
以下为更新标签,使用dedesql类操作。 
{dede:field.typeid runphp='yes'} 
$ID = @me; 
global $dsql; 
$sql = "SELECT * FROM `dede_arctype` WHERE id=$ID"; 
$dsql->Execute('a', $sql); 
$row = $dsql->GetArray('a'); 
$relID = "$row[reid]"; 
if($relID == 0) 

@me = $row[typename]; 

else{ 
$sql = "SELECT `typename` FROM `dede_arctype` WHERE id=$relID"; 
$dsql->Execute('t', $sql); 
$row = $dsql->GetArray('t'); 
  
@me = $row[typename]; 

{/dede:field.typeid}