织梦dedecms如何实现制作三级菜单导航

本文主要介绍了织梦dedecms如何实现制作三级菜单导航，修改方法很简单，修改这个文件channel.lib.php就可以了，不过改的代码很多，所以用的时候要细心谨慎，推荐给有此需要的朋友，值得参考。

织梦如何做三级菜单，这可能是很多人都遇到过的问题，织梦的确不太好做三级菜单，今天92建站网就教大家一招巧用sonchannel标签做三级菜单。

一、修改文件：\include\taglib目录下的channel.lib.php

function lib_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();

$cacheid = trim($cacheid);

if($cacheid !='') {

$likeType = GetCacheBlock($cacheid);

if($likeType != '') return $likeType;

}

$reid = 0;

$topid = 0;

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 = $dsql->GetOne("Select reid From dede_arctype where id='$typeid' ");

if(is_array($dbrow)) $reid = $dbrow['reid'];

}

$likeType = '';

if($type=='top')

{

$sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description

From dede_arctype where reid=0 And ishidden<>1 order by sortrank asc limit 0,$row";

}

else if($type=="son")

{

//if($_sys_globals['typeid']>0) $typeid = $_sys_globals['typeid'];

if($typeid==0) {

return '';

}

$sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description

From dede_arctype where reid='$typeid' And ishidden<>1 order by sortrank asc limit 0,$row";

}

else if($type=="self")

{

if($reid==0) {

return '';

}

$sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description

From `dede_arctype` where reid='$reid' And ishidden<>1 order by sortrank asc limit 0,$row";

}

//And id<>'$typeid'

$needRel = false;

$dtp2 = new DedeTagParse();

$dtp2->SetNameSpace("field","[","]");

$dtp2->LoadSource($innertext);

$dsql2 = clone $dsql;

$dsql->SetQuery($sql);

$dsql->Execute();

$line = $row;

//检查是否有子栏目，并返回rel提示（用于二级菜单）

if(ereg(':rel', $innertext)) $needRel = true;

if(empty($sql)) return '';

$dsql->SetQuery($sql);

$dsql->Execute();

$totalRow = $dsql->GetTotalRow();

$GLOBALS['autoindex'] = 0;

for($i=0;$i < $line;$i++)

{

if($col>1) $likeType .= "

\r\n";

 

for($j=0;$j<$col;$j++)

{

if($col>1) $likeType .= "

\r\n";

 

if($row=$dsql->GetArray())

{

$row['sonids'] = $row['rel'] = '';

if($needRel)

{

$row['sonids'] = GetSonIds($row['id'], 0, false);

if($row['sonids']=='') $row['rel'] = '';

else $row['rel'] = " rel='dropmenu{$row['id']}'";

}

//处理同级栏目中，当前栏目的样式

if( ($row['id']==$typeid || ($topid==$row['id'] && $type=='top') ) && $currentstyle!='' )

{

if($currentstyle!='')

{

$linkOkstr = $currentstyle;

$row['typelink'] = GetOneTypeUrlA($row);

$linkOkstr = str_replace("~rel~",$row['rel'],$linkOkstr);

$linkOkstr = str_replace("~id~",$row['id'],$linkOkstr);

$linkOkstr = str_replace("~typelink~",$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->CTags as $tagid=>$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 .= "

\r\n";

 

$GLOBALS['autoindex']++;

}//Loop Col

if($col>1)

{

$i += $col - 1;

$likeType .= "

\r\n";

 

}

}//Loop for $i

reset($dsql2);

$dsql->FreeResult();

return $likeType;

}

function lib_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 = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description

From dede_arctype where reid='$typeid' And ishidden<>1 order by sortrank asc limit 0,$row";

//And id<>'$typeid'

$dtp2 = new DedeTagParse();

$dtp2->SetNameSpace("field","[","]");

$dtp2->LoadSource($innertext);

$dsql2->SetQuery($sql);

$dsql2->Execute();

$line = $row;

for($i=0;$i < $line;$i++)

{

if($col>1) $likeType .= "

\r\n";

 

for($j=0;$j<$col;$j++)

{

if($col>1) $likeType .= "

\r\n";

 

if($row=$dsql2->GetArray())

{

$row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);

if(is_array($dtp2->CTags))

{

foreach($dtp2->CTags as $tagid=>$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 .= "

\r\n";

 

}//Loop Col

if($col>1)

{

$i += $col - 1;

$likeType .= "

\r\n";

 

}

}//Loop for $i

reset($dsql3);

$dsql2->FreeResult();

return $likeType;

}

?>

复制这个文件覆盖旧文件。

二：巧用sonchannel标签做三级菜单

{dede:channelartlist typeid='72'}

{/dede:channelartlist}    //调用顶级栏目（一级菜单）

dede:channel type='son'}

{/dede:channel} //二级菜单

[field:sonchannel0]//无限获取三级菜单

实例：

<div class="nav">

<div class="nav-l">

<a href="/"><span class="nav-l-span">顶级菜单<i></i></span> </a>

<div class="nav-submenu">

<div id="submenu">

{dede:channelartlist typeid='72'}

<div class="submenu1">

<h3 class="submenu1-t1"><a href="{dede:field name='typeurl'/}">{dede:field name='typename'/}</a></h3>

</div>

{/dede:channelartlist}

</div>

</div>

<div class="nav-submenu-xl">

{dede:channelartlist typeid='72'}

<div class="xl-menu" style="top:1px;display:none;">

<div class="xl-menu-l xl-menu-wc">

<div class="xl-menu-l-part">

{dede:channel type='son'}

<div id="xl-menu-l-div3">

<div class="xl-menu-l-div3-b">

<b> <a href="[field:typelink/]">[field:typename/]</a></b>

</div>

<div class="xl-menu-l-div3-p">

<p>[field:sonchannel0] <a href="[field:typelink/]">[field:typename/]</a> |[/field:sonchannel0] </p>

</div>

</div>

{/dede:channel}

</div>

</div>

</div>

{/dede:channelartlist}

</div>

</div>

注：这里顶级菜单我调用了两次，大家按照自己的需求来！

上面就是织梦三级菜单导航的介绍，若有疑问可以找小编进一步探讨交流~