織夢欄目arclist調(diào)用副欄目不顯示,是不少朋友遇到過的，如何解決？361源碼給大家?guī)淼木褪强棄鬭rclist調(diào)用副欄目不顯示的解決辦法：

一、打開/include/taglib/arclist.lib.php，代碼約位于295-296行,查找以下兩行代碼：

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

　將其替換成以下代碼：

$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.') ';                            }

這種辦法可以解決typeid="2"的情況下不顯示副欄目的問題， 如果typeid=“2,3,8”，有多個欄目需要調(diào)用副欄目就不行了。

怎么解決這個問題，找到262行， 

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

直接替換為： 

$vicewheres = "";                       foreach($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) ";

問題產(chǎn)生的原因，看下arclist.lib.php原始代碼：（ typeid為主欄目id， typeid2為副欄目id）

找到246行：

//指定了多個欄目時，不再獲取子類的id 

      if( preg_match('#,#', $typeid) ) //如果typeid字段匹配逗號， 就是說typeid調(diào)用多個欄目，例如：typeid=“2,3,8”

{                //指定了getall屬性或主頁模板例外                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)";  //導致typeid='2,3,8'情況下不能調(diào)用副欄目問題產(chǎn)生的地方            }            else   //如果typeid不匹配逗號，就是調(diào)用一個欄目 例如 typeid="2"            {               //處理交叉欄目                $CrossID = '';                if($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.')'; //導致typeid='2'情況下不能調(diào)用副欄目問題產(chǎn)生的地方            }

OK，完成！