织梦dedecms如何调用指定三级子栏目或多个栏目导航_dedecms教程_php教程

经常会遇到需要调用多个指定的顶级栏目导航，那我们如何实现呢？关于织梦DEDECMS实现嵌套获取栏目及其子栏目列表的问题，在论坛找到了以前版本的修改方法，于是修改了一下，现在分享给大家。请看实例代码：

织梦dedecms如何调用指定三级子栏目或多个栏目导航

修改文件：\include\taglib目录下的channel.lib.php，请将以下代码全部复制替换上述文件。

以下为引用的内容：

<?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 .= "<dl>\r\n";

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

{

if($col>1) $likeType .= "<dd>\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 .= "</dd>\r\n";

$GLOBALS['autoindex']++;

}//Loop Col

if($col>1)

{

$i += $col - 1;

$likeType .= " </dl>\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 .= "<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->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 .= "</dd>\r\n";

}//Loop Col

if($col>1)

{

$i += $col - 1;

$likeType .= " </dl>\r\n";

}

}//Loop for $i

reset($dsql3);

$dsql2->FreeResult();

return $likeType;

}

注：如果你安装的dedecms使用的表前缀进行修改过，需要把上面代码中的 dede_arctype 前缀修改掉才行。

模板调用 [field:sonchannel0] [/field:sonchannel0] 这个是用来取子栏目用得(使用[sonchannel+数字] 作为标签名是为了防止嵌套的时候无法正确解析标签)

这个的作用就是当你的栏目有很多子栏目无限分级的时候方便你取子栏目的

例子

{dede:channel type='son' typeid='22'}

[field:typename/]

<ul>

[field:sonchannel0]

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

[field:sonchannel1]

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

[field:sonchannel2]

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

[field:sonchannel3]

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

[/field:sonchannel3]

[/field:sonchannel2]

[/field:sonchannel1]

[/field:sonchannel0]

</ul>

{/dede:channel}

(责任编辑：最模板)