dede子栏目下调用父栏目一级名称
可以在栏目列表页中根据是否有下级栏目显示父级栏目名称
安装说明：
新建php文件（命名为：parentchannel.lib.php），放入以下代码，将php文件放在/include/taglib 目录
使用方法
{dede:parentchannel}[field:typename/]{/dede:parentchannel}
<?php
function lib_parentchannel(&$ctag,&$refObj)
{
global $_sys_globals,$dsql;
$attlist = "row|100,nosonmsg|,col|1";
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$innertext = $ctag->GetInnerText();
$reid = 0;
$topid = 0;
//如果属性里没指定栏目id，从引用类里获取栏目信息
if(empty($typeid))
{
if( isset($refObj->TypeLink->TypeInfos['id']) )
{
$typeid = $refObj->TypeLink->TypeInfos['id'];
$reid = $refObj->TypeLink->TypeInfos['reid'];
$topid = $refObj->TypeLink->TypeInfos['topid'];
}
else {
$typeid = 0;
}
} //如果指定了栏目id，从数据库获取栏目信息
else
{
$row2 = $dsql->GetOne("SELECT * FROM `dede_arctype` WHERE id='$typeid' ");
$typeid = $row2['id'];
$reid = $row2['reid'];
$topid = $row2['topid'];
$issetInfos = true;
}
$sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `dede_arctype` WHERE reid='$typeid' AND ishidden<>1 ORDER BY sortrank ASC LIMIT 1";
$dsql->SetQuery($sql);
$dsql->Execute();
$totalRow = $dsql->GetTotalRow();
//And id<>'$typeid'
$row = $dsql->GetOne("SELECT id,typename,reid,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `dede_arctype` WHERE id='$typeid' ");
if(!is_array($row)) return '';
if($totalRow==0){
$typeid = $row['reid'];
$row = $dsql->GetOne("SELECT id,typename,reid,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `dede_arctype` WHERE id='$typeid' ");
if(!is_array($row)) return '';
}
if(trim($innertext)=='') $innertext = GetSysTemplets("part_type_list.htm");
$dtp = new DedeTagParse();
$dtp->SetNameSpace('field','[',']');
$dtp->LoadSource($innertext);
if(!is_array($dtp->CTags))
{
unset($dtp);
return '';
}
else
{
$row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);
foreach($dtp->CTags as $tagid=>$ctag)
{
if(isset($row[$ctag->GetName()])) $dtp->Assign($tagid,$row[$ctag->GetName()]);
}
$revalue = $dtp->GetResult();
unset($dtp);
return $revalue;
}
}
?>
