ecshop商品详情页增加已售商品数量和评论数量的方法

• 1.打开 goods.php 文件，在此文件最下面加入如下两个函数
  function get_buy_sum($goods_id)
  {
  $sql = ‘SELECT INULLSUM(g.goods_number), 0) ‘ .
  ‘FROM ‘ . $GLOBALS[‘ecs’]->table(‘order_info’) . ‘ AS o, ‘ .
  $GLOBALS[‘ecs’]->table(‘order_goods’) . ‘ AS g ‘ .
  “WHERE o.order_id = g.order_id ” .
  “AND o.order_status = ‘” . OS_CONFIRMED . “‘ ” .
  “AND o.shipping_status ” . db_create_in(array(SS_SHIPPED, SS_RECEIVED)) .
  ” AND o.pay_status ” . db_create_in(array(PS_PAYED, PS_PAYING)) .
  ” AND g.goods_id = ‘$goods_id'”;
  return $GLOBALS[‘db’]->getOne($sql);
  }

  function get_comment_num($goods_id)  {
  $sql= “sel ect count(*)  from “.$GLOBALS[‘ecs’]->table(‘comment’).” where id_value='”.$goods_id.”‘  AND status = 1″;
  return $GLOBALS[‘db’]->getOne($sql);
  }

  2.继续修改 goods.php 文件
  找到
  $smarty->display(‘goods.dwt’, $cache_id);
  在此代码前面添加
  $smarty->assign(‘buy_num’,get_buy_sum($goods_id));
  $smarty->assign(‘comment_num’,get_comment_num($goods_id));

  3.打开 /themes/模板文件夹/goods.dwt 文件，在需要的地方加入如下代码
  <!– {if $buy_num} 已出售量–>
  <li class=”clearfix”>
  <dd>
  <strong>累计售出：</strong>{$buy_num}
  </dd>
  </li>
  <!–{/if}–>
  <!– {if $comment_num} 评论数量–>
  <li class=”clearfix”>
  <dd>
  <strong>评论数量：</strong><a href=”#comment”>{$comment_num}</a>
  </dd>
  </li>
  <!–{/if}–>