在網站文件中找到include-taglib-chanel.lib.php,和chaneartllist.lib.php
下載用php的IDE打開,
chanel.php加入limit屬性修改如下
<?php
/**
* 獲取欄目列表標籤
*
* @version $Id: channel.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>頻道標籤</name>
<type>全局標記</type>
<for>V55,V56,V57</for>
<description>用於獲取欄目列表</description>
<demo>
{dede:channel type='top' row='8' currentstyle="<li><a href='~typelink~' class='thisclass'>~typename~</a> </li>"}
<li><a href='[field:typelink/]'>[field:typename/]</a> </li>
{/dede:channel}
</demo>
<attributes>
<iterm>typeid:欄目ID</iterm>
<iterm>reid:上級欄目ID</iterm>
<iterm>row:調用欄目數</iterm>
<iterm>col:分多少列顯示(默認爲單列)</iterm>
<iterm>type:son表示下級欄目,self表示同級欄目,top頂級欄目</iterm>
<iterm>currentstyle:應用樣式</iterm>
</attributes>
>>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 = '';
//讀取固定的緩存塊
$cacheid = trim($cacheid);
if($cacheid !='') {
$likeType = GetCacheBlock($cacheid);
if($likeType != '') return $likeType;
}
$reid = 0;
$topid = 0;
//如果屬性裏沒指定欄目id,從引用類裏獲取欄目信息
if(empty($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;
}
}
//如果指定了欄目id,從數據庫獲取欄目信息
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);
//檢查是否有子欄目,並返回rel提示(用於二級菜單)
if(preg_match('#:rel#', $innertext)) $needRel = true;
if(empty($sql)) return '';
$dsql->SetQuery($sql);
$dsql->Execute();
$totalRow = $dsql->GetTotalRow();
//如果用子欄目模式,當沒有子欄目時顯示同級欄目
if($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) $likeType .= "<dl>\r\n";
for($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']}'";
}
//處理同級欄目中,當前欄目的樣式
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 .= "</dd>\r\n";
$GLOBALS['autoindex']++;
}
//Loop Col
if($col>1)
{
$i += $col - 1;
$likeType .= " </dl>\r\n";
}
}
//Loop for $i
$dsql->FreeResult();
if($cacheid !='') {
WriteCacheBlock($cacheid, $likeType);
}
return $likeType;
}
這時候就可以在模板中調用了
比如
{dede:channel limit="0" row="1"} <dt><h3><a target="_blank" href='[field:typelink/]'>[field:typename/]</a></h3></dt> {/dede:channel}
這段代碼表示調用從0開始,row爲1行的子欄目,如下一個就將limit=“0”改爲limit=“1”即可。
下面是chanelartlist中添加limit屬性的源代碼
<?php if(!defined('DEDEINC')) exit('Request Error!'); /** * 獲取當前頻道的下級欄目的內容列表標籤 * * @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>頻道文檔</name> <type>全局標記</type> <for>V55,V56,V57</for> <description>獲取當前頻道的下級欄目的內容列表標籤</description> <demo> {dede:channelartlist row=6} <dl> <dt><a href='{dede:field name='typeurl'/}'>{dede:field name='typename'/}</a></dt> <dd> {dede:arclist titlelen='42' row='10'} <ul class='autod'> <li><a 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:頻道ID</iterm> <iterm>row:獲取的欄目返回值</iterm> </attributes> >>dede>>*/ require_once(DEDEINC.'/arc.partview.class.php'); function lib_channelartlist(&$ctag,&$refObj) { global $dsql,$envs,$_sys_globals; //處理標記屬性、innertext $attlist = 'typeid|0,row|20,cacheid|,limit|,type|'; //這邊加個limit變量 type 我是想實現 在子欄目下調用 同級子欄目的信息 FillAttsDefault($ctag->CAttribute->Items,$attlist); extract($ctag->CAttribute->Items, EXTR_SKIP); $innertext = trim($ctag->GetInnerText()); $artlist = ''; //讀取固定的緩存塊 $cacheid = trim($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; //獲得類別ID總數的信息 $typeids = array(); if($type=='reid') //2011.7.5 調用上級目錄下的子欄目內容 { $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', '', $limit)); //增加limit標籤 if($limit!='') $limitsql = " LIMIT $limit "; //如果limit爲空就以 row變量的默認值 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); } //註銷環境變量,以防止後續調用中被使用 $GLOBALS['envs']['typeid'] = $_sys_globals['typeid']; $GLOBALS['envs']['reid'] = ''; if($cacheid !='') { WriteCacheBlock($cacheid, $artlist); } return $artlist; }
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}
從欄目的第一個子欄目讀取6篇文章
如需讀取第二個子欄目的文章,limit=“1,1”,第三爲:limit=“2,1”
依次類推。
經驗分享!不謝!