织梦二开按照软件下载次数排序教程

织梦的arclist标签可以按照文章点击次数、发布日期、得分等进行排序，今天有个客户需要按照软件下载次数进行排序，于是冬镜做了简单二次开发，教程如下：

一、找到如下文件，路径include/taglib/arclist.lib.php

二、打开该文件，在376行后加入如下代码：

if($orderby == 'down')
 {
  $sql = "select SUM(downloads) as down_num,id from dede_downloads group by id ORDER BY down_num DESC LIMIT 0,15";
  $dsql->Execute('me',$sql);
  while($drow = $dsql->GetArray() )
  {
   $arr[] = $drow['id'];
  }
  $dstr = implode(",",$arr);
  if($orwhere!='')
  {
   $orwhere .= " AND arc.id in($dstr)";
  }else{
   $orwhere .= " where arc.id in($dstr)";
  }
  $ordersql = 'ORDER BY field(arc.id,'.$dstr.')';
 }