织梦实现三级多级栏目嵌套调用教程(织梦如何使用)

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将三级目录全部显示出来，而系统的channel标签只能获取下级分类，所以就报改了channel.lib.php这个文件，让他支持多级栏目嵌套，代码如下：

<?phpfunctionlib_channel(&$ctag,&$refObj){global$_sys_globals,$envs,$dsql;$attlist="typeid|0,reid|0,row|100,col|1,type|son,currentstyle|";FillAttsDefault($ctag->CAttribute->Items,$attlist);extract($ctag->CAttribute->Items,EXTR_SKIP);$innertext=$ctag->GetInnerText();if(empty($typeid)&&$envs['typeid']!=0){$typeid=$envs['typeid'];$reid=$envs['reid'];}else{$reid=0;}if($type==''||$type=='sun')$type="son";if($innertext=='')$innertext=GetSysTemplets("channel_list.htm");if($reid==0&&$typeid>0){$dbrow=$dsql->GetOne("SelectreidFromnet_arctypewhereid='$typeid'");if(is_array($dbrow))$reid=$dbrow['reid'];}$likeType='';if($type=='top'){$sql="Selectid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,descriptionFromnet_arctypewherereid=0Andishidden<>1orderbysortrankasclimit0,$row";}elseif($type=="son"){//if($_sys_globals['typeid']>0)$typeid=$_sys_globals['typeid'];if($typeid==0){return'';}$sql="Selectid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,descriptionFromnet_arctypewherereid='$typeid'Andishidden<>1orderbysortrankasclimit0,$row";}elseif($type=="self"){if($reid==0){return'';}$sql="Selectid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,descriptionFrom`net_arctype`wherereid='$reid'Andishidden<>1orderbysortrankasclimit0,$row";}//Andid<>'$typeid'$dtp2=newDedeTagParse();$dtp2->SetNameSpace("field","[","]");$dtp2->LoadSource($innertext);$dsql2=clone$dsql;$dsql->SetQuery($sql);$dsql->Execute();$line=$row;$GLOBALS['autoindex']=0;for($i=0;$i<$line;$i++){if($col>1)$likeType.="<dl>\r\n";for($j=0;$j<$col;$j++){if($col>1)$likeType.="<dd>\r\n";if($row=$dsql->GetArray()){if($type=='self'&&$row['id']==$typeid)//处理同级栏目中，当前栏目的样式{if($currentstyle!=''){$linkOkstr=$currentstyle;$row['typelink']=GetOneTypeUrlA($row);$linkOkstr=str_replace("~typelink~",$row['typelink'],$linkOkstr);$linkOkstr=str_replace("~typename~",$row['typename'],$linkOkstr);$likeType.=$linkOkstr;}}else{$row['typelink']=$row['typeurl']=GetOneTypeUrlA($row);if(is_array($dtp2->CTags)){foreach($dtp2->CTagsas$tagid=>$ctag){if(isset($row[$ctag->GetName()])){$dtp2->Assign($tagid,$row[$ctag->GetName()]);}elseif(preg_match('/^sonchannel[0-9]*$/',$ctag->GetName())){$dtp2->Assign($tagid,lib_channel_son($ctag,$row['id'],$dsql2));}}}$likeType.=$dtp2->GetResult();}}if($col>1)$likeType.="</dd>\r\n";$GLOBALS['autoindex']++;}//LoopColif($col>1){$i+=$col-1;$likeType.="</dl>\r\n";}}//Loopfor$ireset($dsql2);$dsql->FreeResult();return$likeType;}functionlib_channel_son($ctag,$typeid=0,$dsql2){$attlist="row|100,col|1,currentstyle|";FillAttsDefault($ctag->CAttribute->Items,$attlist);extract($ctag->CAttribute->Items,EXTR_SKIP);$innertext=$ctag->GetInnerText();$dsql3=clone$dsql2;$likeType='';//if($_sys_globals['typeid']>0)$typeid=$_sys_globals['typeid'];if($typeid==0){return'';}$sql="Selectid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,descriptionFromnet_arctypewherereid='$typeid'Andishidden<>1orderbysortrankasclimit0,$row";//Andid<>'$typeid'$dtp2=newDedeTagParse();$dtp2->SetNameSpace("field","[","]");$dtp2->LoadSource($innertext);$dsql2->SetQuery($sql);$dsql2->Execute();$line=$row;for($i=0;$i<$line;$i++){if($col>1)$likeType.="<dl>\r\n";for($j=0;$j<$col;$j++){if($col>1)$likeType.="<dd>\r\n";if($row=$dsql2->GetArray()){$row['typelink']=$row['typeurl']=GetOneTypeUrlA($row);if(is_array($dtp2->CTags)){foreach($dtp2->CTagsas$tagid=>$ctag){if(isset($row[$ctag->GetName()])){$dtp2->Assign($tagid,$row[$ctag->GetName()]);}elseif(preg_match('/^sonchannel[0-9]*$/',$ctag->GetName())){$dtp2->Assign($tagid,lib_channel_son($ctag,$row['id'],$dsql3));}}}$likeType.=$dtp2->GetResult();}if($col>1)$likeType.="</dd>\r\n";}//LoopColwww.dede58.comif($col>1){$i+=$col-1;$likeType.="</dl>\r\n";}}//Loopfor$ireset($dsql3);$dsql2->FreeResult();return$likeType;}?>

将以上代码全部替换channel.lib.php文件内容后就可以了，附前端调用的示例：

{dede:channeltype='top'}[field:typename/]<ul>[field:sonchannel0]<li><ahref="[field:typelink/]">[field:typename/]</a></li>[field:sonchannel1]<li><ahref="[field:typelink/]">---[field:typename/]</a></li>[field:sonchannel2]<li><ahref="[field:typelink/]">===[field:typename/]</a></li>[field:sonchannel3]<li><ahref="[field:typelink/]">===[field:typename/]</a></li>[/field:sonchannel3][/field:sonchannel2][/field:sonchannel1][/field:sonchannel0]</ul>{/dede:channel}

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