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}