织梦多个栏目arclist调用副栏目不显示的解决办法_dedecms教程_php教程

织梦dedecms arclist调用副栏目不显示的解决办法。

打开/include/taglib/arclist.lib.php，代码约位于295-296行,查找以下两行代码：

if($CrossID=='') $orwheres[] = ' arc.typeid IN ('.GetSonIds($typeid).')';

else $orwheres[] = ' arc.typeid IN ('.GetSonIds($typeid).','.$CrossID.')';

　　将其替换成以下代码：

$vicewheres = "";

$typeids = explode(",",GetSonIds($typeid));

$crossids = explode(",",$CrossID);

$typeidss = array_merge($typeids,$crossids);

$typeidss = array_unique($typeidss);

foreach($typeidss as $tid){

$liketypeid2 = ",".$tid.",";

$vicewheres.= " or CONCAT(',',arc.typeid2,',') like '%$liketypeid2%' ";

}

if($CrossID==''){

if($vicewheres!="")

$orwheres[] = ' (arc.typeid in ('.GetSonIds($typeid).') '.$vicewheres.') ';

else

$orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).') ';

}else{

if($vicewheres!="")

$orwheres[] = ' (arc.typeid in ('.GetSonIds($typeid).','.$CrossID.') '.$vicewheres.') ';

else

$orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).','.$CrossID.') ';

}

这种办法可以解决typeid="2"的情况下不显示副栏目的问题，如果typeid=“2,3,8”，有多个栏目需要调用副栏目就不行了怎么解决这个问题，找到262行， $orwheres[] = " arc.typeid IN ($typeid) "; 直接替换为：

$vicewheres = "";

foreach($typeid as $tid){

$liketypeid2 = ",".$tid.",";

$vicewheres.= " or CONCAT(',',arc.typeid2,',') like '%$liketypeid2%' ";

}

if($vicewheres!="")

$orwheres[] = " (arc.typeid in ($typeid) $vicewheres) ";

else

$orwheres[] = " arc.typeid in ($typeid) ";

问题产生的原因，看下arclist.lib.php原始代码：（ typeid为主栏目id， typeid2为副栏目id）

找到246行：

//指定了多个栏目时，不再获取子类的id if( preg_match('#,#', $typeid) ) //如果typeid字段匹配逗号，就是说typeid调用多个栏目，例如：typeid=“2,3,8”

{

//指定了getall属性或主页模板例外

if($getall==1 || empty($refObj->Fields['typeid']))

{

$typeids = explode(',', $typeid);

foreach($typeids as $ttid) {

$typeidss[] = GetSonIds($ttid);

}

$typeidStr = join(',', $typeidss);

$typeidss = explode(',', $typeidStr);

$typeidssok = array_unique($typeidss);

$typeid = join(',', $typeidssok);

}

$orwheres[] = " arc.typeid IN ($typeid)"; //导致typeid='2,3,8'情况下不能调用副栏目问题产生的地方

}

else //如果typeid不匹配逗号，就是调用一个栏目例如 typeid="2"

{

//处理交叉栏目

$CrossID = '';

if($ctag->GetAtt('cross')=='1')

{

$arr = $dsql->GetOne("SELECT `id`,`topid`,`cross`,`crossid`,`ispart`,`typename` FROM `dede_arctype` WHERE id='$typeid' ");

if( $arr['cross']==0 || ( $arr['cross']==2 && trim($arr['crossid']=='') ) )

{

$orwheres[] = ' arc.typeid IN ('.GetSonIds($typeid).')';

}

else

{

$selquery = '';

if($arr['cross']==1) {

$selquery = "SELECT id,topid FROM `dede_arctype` WHERE typename LIKE '{$arr['typename']}' AND id<>'{$typeid}' AND topid<>'{$typeid}' ";

}

else {

$arr['crossid'] = preg_replace('#[^0-9,]#', '', trim($arr['crossid']));

if($arr['crossid']!='') $selquery = "SELECT id,topid FROM `dede_arctype` WHERE id IN('{$arr['crossid']}') AND id<>'{$typeid}' AND topid<>'{$typeid}' ";

}

if($selquery!='')

{

$dsql->SetQuery($selquery);

$dsql->Execute();

while($arr = $dsql->GetArray())

{

$CrossID .= ($CrossID=='' ? $arr['id'] : ','.$arr['id']);

}

if($CrossID=='') $orwheres[] = ' arc.typeid IN ('.GetSonIds($typeid).')';

else $orwheres[] = ' arc.typeid IN ('.GetSonIds($typeid).','.$CrossID.')'; //导致typeid='2'情况下不能调用副栏目问题产生的地方

}

(责任编辑：好模板)