以下是通过AJAX方式来动态更新ECShop购物车页面商品数量的解决办法

一、前端页面部分(flow.dwt)

在商品数量的input框添加对应的js函数

<INPUT  onblur=”changePrice(document.getElementById(‘goods_number_{$goods.rec_id}’).value,{$goods.rec_id})” name=”goods_number[{$goods.rec_id}]” id=”goods_number_{$goods.rec_id}” value=”{$goods.goods_number}”  id=”ECS_FORMBUY”>

在文件最后添加一段js

 

<script type=”text/javascript”>

function changePrice(number,rec_id)

{

  var attr = getSelectedAttributes(document.forms['ECS_FORMBUY']);

  var qty = document.forms['ECS_FORMBUY'].elements['number'].value;

 

   Ajax.call(‘flow.php’, ‘step=update_group_cart&rec_id=’ + rec_id +’&number=’ + number, changePriceResponse, ‘GET’, ‘JSON’);

}

function changePriceResponse(res)

{

  if (res.error > 0)

  {

    document.getElementById(‘sysmsg_error’).innerHTML = res.content;

    document.all.sysmsg_error.style.display=”;

  }

  else

  {

    if(document.all.sysmsg_error.style.display==”)

  {

   document.all.sysmsg_error.style.display=’none’;

  }

 document.getElementById(‘subtotal_’+res.rec_id).innerHTML = res.subtotal;

 document.getElementById(‘cart_amount’).innerHTML = res.cart_amount;

  }

}

</script>

 

二、在flow.php文件中插入对应的处理代码：

elseif($_REQUEST['step'] == ‘update_group_cart’)

{

include_once(‘includes/cls_json.php’);

$json = new JSON();

$result = array(‘error’ => ”, ‘content’ => ”);

$rec_id = $_GET['rec_id'];

$number = $_GET['number'];

$group_buy = group_buy_info($_SESSION['extension_id'], $number);

if(!is_numeric($number))

{

$result['error'] = ’1′;

$result['content'] =’请输入合法数量’;

die($json->encode($result));

}

if ($group_buy['restrict_amount'] > 0 && $number > ($group_buy['restrict_amount'] – $group_buy['valid_goods']))

 {

$result['error'] = ’1′;

$restrict_amount =  $group_buy['restrict_amount'] – $group_buy['valid_goods'];

$result['content'] =’您最多可买’.$restrict_amount.’件’;

die($json->encode($result));

}

$sql = “UPDATE ” . $GLOBALS['ecs']->table(‘cart’) . ” SET goods_number = ‘$number’ WHERE rec_id = $rec_id”;

$GLOBALS['db']->query($sql);

$subtotal = $GLOBALS['db']->getONE(“select goods_price * goods_number AS subtotal from “.$GLOBALS['ecs']->table(‘cart’).” where rec_id = $rec_id”);

$cart_amount = cart_amount(”,$_SESSION['flow_type']);

$result['subtotal'] = price_format($subtotal, false);

$result['cart_amount'] = price_format($cart_amount, false);

$result['rec_id'] = $rec_id;

die($json->encode($result));

}

 

还等什么？马上清空echsop的缓存刷新页面看看效果吧。