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

<?php

/**

 * 获取栏目列表标签

 *

 * @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>频道标签</name>

<type>全局标记</type>

<for>V55,V56,V57</for>

<description>用于获取栏目列表</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:栏目ID</iterm> 

    <iterm>reid:上级栏目ID</iterm>

    <iterm>row:调用栏目数</iterm>

    <iterm>col:分多少列显示（默认为单列）</iterm>

    <iterm>type:son表示下级栏目,self表示同级栏目,top顶级栏目</iterm>

    <iterm>currentstyle:应用样式</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 = '';

    //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 .= "<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!='' )

                {

                    $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;

}

 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

<?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 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: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;

}

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！