dedecms 添加自定义标签显示非dede表数据

需求：调用一个商城系统里面的产品数据到dedecms文章页，希望对需要类似需求的人有所帮助

功能实现：为了不用垮数据库查询，dedecms安装到商城系统数据库里面

下面是实现的代码(请根据自己的环境进行修改)

include/taglib/hongyungoods.lib.php

<?php
/**

 * @author http://blog.runphp.net/

 */

if(!defined('DEDEINC')) exit('Request Error!');
 
function lib_hongyungoods(&$ctag, &$refObj)
{

    global $dsql, $envs, $cfg_cmsurl;

    //属性处理

    $attlist="row|6,titlelen|0,tid|0";

    FillAttsDefault($ctag->CAttribute->Items,$attlist);

    extract($ctag->CAttribute->Items, EXTR_SKIP);

    //只在指定栏目显示

    if($tid>0 && $tid != $envs['typeid']) return '';

    if( !$dsql->IsTable("sl_products") ) return '没安装鸿运产品模块';

    $innertext = $ctag->GetInnerText();

    //@todo hongyungoods.htm

    if(trim($innertext)=='') $innertext = GetSysTemplets("hongyungoods.htm");

    //@todo 智能条件

    $where = 1;

    $limit = 5;

    $ctp = new DedeTagParse();

    $ctp->SetNameSpace('field', '[', ']');

    $ret = '';

    $query = "SELECT p.`Name` AS title,

 CONCAT('http://www.hongyun2000.com/', ps.`AcStr`, '-view-', p.`ID`, '.html') AS url,

 CONCAT('http://www.hongyun2000.com/uploadfile/s/', p.`Images`) AS img

 FROM `sl_products` AS p

 LEFT JOIN `sl_products_sort` AS ps ON p.`SID` = ps.`ID`

 WHERE " . $where . " ORDER BY RAND() LIMIT " . $limit;

    $dsql->Execute('me',$query);

  while($rs = $dsql->GetArray('me'))

  {

      $rs['title'] = 0 == $titlelen?$rs['title']:cn_substr($rs['title'], $titlelen);

        $ctp->LoadSource($innertext);

      foreach($ctp->CTags as $tagid=>$ctag) {

            if(!empty($rs[strtolower($ctag->GetName())])) {

                $ctp->Assign($tagid,$rs[$ctag->GetName()]);

            }

          }

          $ret .= $ctp->GetResult();

  }
 
  return $ret;
}
 
?>

调用页面使用：

{dede:hongyungoods}

<dd>

    <span class="tlink"><a href="[field:url/]"><img src="[field:img/]" alt="[field:title/]"/></a>

    <a href="[field:url/]" target="_blank">[field:title/]</a></span>

</dd>
{/dede:hongyungoods}