dedeCMS中单独调用子栏目模板和子栏目的文章时修改源代码给channel和chanenartllist加上limit
在网站文件中找到include-taglib-chanel.lib.php,和chaneartllist.lib.php
下载用php的IDE打开，
chanel.php加入limit属性修改如下
>dede>>
频道标签
全局标记
V55,V56,V57
用于获取栏目列表
{dede:channel type='top' row='8' currentstyle="~typename~ "}
[field:typename/]
{/dede:channel}
typeid:栏目ID
reid:上级栏目ID
row:调用栏目数
col:分多少列显示（默认为单列）
type:son表示下级栏目,self表示同级栏目,top顶级栏目
currentstyle:应用样式
>>dede>>*/
function lib_channel(&$ctag,&$refObj)
{
global $dsql;
$attlist = "typeid|0,reid|0,row|100,col|1,type|son,currentstyle|,cacheid|,limit|";
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$innertext = $ctag->GetInnerText();
$line = empty($row) ? 100 : $row;
$limit=empty($limit)?0:$limit;
$likeType = '';
//读取固定的缓存块
$cacheid = trim($cacheid);
if($cacheid !='') {
$likeType = GetCacheBlock($cacheid);
if($likeType != '') return $likeType;
}
$reid = 0;
$topid = 0;
//如果属性里没指定栏目id，从引用类里获取栏目信息
if(empty($typeid))
{
if( isset($refObj->TypeLink->TypeInfos['id']) )
{
$typeid = $refObj->TypeLink->TypeInfos['id'];
$reid = $refObj->TypeLink->TypeInfos['reid'];
$topid = $refObj->TypeLink->TypeInfos['topid'];
}
else {
$typeid = 0;
}
}
//如果指定了栏目id，从数据库获取栏目信息
else
{
$row2 = $dsql->GetOne("SELECT * FROM `#@__arctype` WHERE id='$typeid' ");
$typeid = $row2['id'];
$reid = $row2['reid'];
$topid = $row2['topid'];
$issetInfos = true;
}
if($type=='' || $type=='sun') $type='son';
if($innertext=='') $innertext = GetSysTemplets("channel_list.htm");
if($type=='top')
{
$sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
From `#@__arctype` WHERE reid=0 And ishidden<>1 order by sortrank asc limit $limit,$line ";
}
else if($type=='son')
{
if($typeid==0) return '';
$sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
From `#@__arctype` WHERE reid='$typeid' And ishidden<>1 order by sortrank asc limit $limit,$line ";
}
else if($type=='self')
{
if($reid==0) return '';
$sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `#@__arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit $limit,$line ";
}
//And id<>'$typeid'
$needRel = false;
$dtp2 = new DedeTagParse();
$dtp2->SetNameSpace('field','[',']');
$dtp2->LoadSource($innertext);
//检查是否有子栏目，并返回rel提示（用于二级菜单）
if(preg_match('#:rel#', $innertext)) $needRel = true;
if(empty($sql)) return '';
$dsql->SetQuery($sql);
$dsql->Execute();
$totalRow = $dsql->GetTotalRow();
//如果用子栏目模式，当没有子栏目时显示同级栏目
if($type=='son' && $reid!=0 && $totalRow==0)
{
$sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
FROM `#@__arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit 0, $line ";
$dsql->SetQuery($sql);
$dsql->Execute();
}
$GLOBALS['autoindex'] = 0;
for($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!='' )
{
$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()]);
}
}
$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
$dsql->FreeResult();
if($cacheid !='') {
WriteCacheBlock($cacheid, $likeType);
}
return $likeType;
}
这时候就可以在模板中调用了
比如
{dede:channel limit="0" row="1"} <dt><h3><a target="_blank" href='[field:typelink/]'>[field:typename/]a>h3>dt> {/dede:channel}
这段代码表示调用从0开始，row为1行的子栏目，如下一个就将limit=“0”改为limit=“1”即可。
下面是chanelartlist中添加limit属性的源代码
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>>频道文档 全局标记 V55,V56,V57 获取当前频道的下级栏目的内容列表标签 {dede:channelartlist row=6} {/dede:channelartlist}
- {dede:field name='typename'/}
- {dede:arclist titlelen='42' row='10'}
{/dede:arclist}
- [field:title /]
- ([field:pubdate function="MyDate('m-d',@me)"/])
>>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; } typeid:频道ID row:获取的栏目返回值
使用方法如下：
{dede:channelartlist limit='0,1'} {dede:arclist row='6' titlelen='42'} <dd><a target="_blank" href="[field:arcurl/]" style="">[field:title/]a>dd> {/dede:arclist} {/dede:channelartlist}
从栏目的第一个子栏目读取6篇文章
如需读取第二个子栏目的文章，limit=“1,1”，第三为：limit=“2,1”
依次类推。
经验分享！不谢！