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让dede的channelartlist标签支持limit

发布时间：2024-03-14 15:36:56 来源：互联网

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雪是一种能够令人产生多种情绪的东西，当窗外那像柳絮、像芦花般的雪花，正在纷纷扬扬地从天而降的时候，当大地被雪花装饰得像铺上白色的地毯一样的时候，站在窗户边上，望着它们。

当使用 channelartlist标签嵌套artlist 标签时，想要各个子栏目的样式不一样，或者指定调用某几个子栏目，比如调用当前栏目的第四个第八个栏目，使用row肯定不行，这时我们想到artlist支持limit调用，但是channelartlist不支持。

临时想个法子在channelartlist加个limit标签

修改 \include\taglib\channelartlist.lib.php 文件标签代码如下

<?php if(!defined('DEDEINC')) exit('Request Error!');
/**
* 获取当前频道的下级栏目的内容列表标签
*
* @version $Id: channelartlist.lib.php 1 9:29 2010年7月6日Z tianya $
* @package DedeCMS.Taglib
* @copyright Copyright (c) 2007 - 2010, DesDev, Inc.
* @license http://help.dedecms.com/usersguide/license.html
* @link http://www.dedecms.com
*/

/*>>dede>>
<name>频道文档</name>
<type>全局标记</type>
<for>V55,V56,V57</for>
<description>获取当前频道的下级栏目的内容列表标签</description>
<demo>
{dede:channelartlist row=6}
<dl>
<dt><a rel="nofollow noopener noreferrer" href='{dede:field name='typeurl'/}'>{dede:field name='typename'/}</a></dt>
<dd>
{dede:arclist titlelen='42' row='10'} <ul class='autod'>
<li><a rel="nofollow noopener noreferrer" href="[field:arcurl /]">[field:title /]</a></li>
<li>([field:pubdate function="MyDate('m-d',@me)"/])</li>
</ul>
{/dede:arclist}
</dl>
{/dede:channelartlist}
</demo>
<attributes>
<iterm>typeid:频道ID</iterm>
<iterm>row:获取的栏目返回值</iterm>
</attributes>
>>dede>>*/

require_once(DEDEINC.'/arc.partview.class.php');

function lib_channelartlist(&$ctag,&$refObj)
{
global $dsql,$envs,$_sys_globals;

//处理标记属性、innertext
$attlist = 'typeid|0,row|20,cacheid|,limit|,type|'; //这边加个limit变量 type 我是想实现在子栏目下调用同级子栏目的信息
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$innertext = trim($ctag->GetInnerText());
$artlist = '';
//读取固定的缓存块
$cacheid = trim($cacheid);
if($cacheid !='') {
$artlist = GetCacheBlock($cacheid);
if($artlist!='') return $artlist;
}

if(empty($typeid))
{
$typeid = ( !empty($refObj->TypeLink->TypeInfos['id']) ? $refObj->TypeLink->TypeInfos['id'] : 0 );
}

if($innertext=='') $innertext = GetSysTemplets('part_channelartlist.htm');
$totalnum = $row;
if(empty($totalnum)) $totalnum = 20;

//获得类别ID总数的信息
$typeids = array();
if($type=='reid') //2011.7.5 调用上级目录下的子栏目内容
{

$reid = $refObj->TypeLink->TypeInfos['reid'];

$tpsql = " reid='$reid' AND ispart<>2 AND ishidden<>1 ";
}
else if($typeid==0 || $typeid=='top') {

$tpsql = " reid=0 AND ispart<>2 AND ishidden<>1 AND channeltype>0 ";
}
else
{

if(!preg_match('#,#', $typeid)) {
$tpsql = " reid='$typeid' AND ispart<>2 AND ishidden<>1 ";
}
else {
$tpsql = " id IN($typeid) AND ispart<>2 AND ishidden<>1 ";
}
}

$limit = trim(preg_replace('#limit#is', '', $limit)); //增加limit标签
if($limit!='') $limitsql = " LIMIT $limit "; //如果limit为空就以 row变量的默认值限制
else $limitsql = " LIMIT 0,$totalnum";

$dsql->SetQuery("SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `dede_arctype` WHERE $tpsql ORDER BY sortrank ASC $limitsql");
$dsql->Execute();
while($row = $dsql->GetArray()) {
$typeids[] = $row;
}

if(!isset($typeids[0])) return '';

$GLOBALS['itemindex'] = 0;
$GLOBALS['itemparity'] = 1;
for($i=0;isset($typeids[$i]);$i++)
{
$GLOBALS['itemindex']++;
$pv = new PartView($typeids[$i]['id']);
$pv->Fields['typeurl'] = GetOneTypeUrlA($typeids[$i]);

$pv->SetTemplet($innertext,'string');
$artlist .= $pv->GetResult();
$GLOBALS['itemparity'] = ($GLOBALS['itemparity']==1 ? 2 : 1);
}
//注销环境变量，以防止后续调用中被使用
$GLOBALS['envs']['typeid'] = $_sys_globals['typeid'];
$GLOBALS['envs']['reid'] = '';
if($cacheid !='') {
WriteCacheBlock($cacheid, $artlist);
}
return $artlist;
}