每次用户进入 ecshop 购物流程当需要更改购物车的数量必须手动点击更新按钮,这是非常糟糕的用户体验,我们有必要去改善它。
下面是通过 AJAX 动态更新 ECShop 购物车页面数量的解决方案
- 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。
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