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denise92

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發表於 2010-5-4 00:05 | 只看該作者

帖子標題：[分享] 使用ajax更新購物車數量for 2.7

ajax, 數量, 購物車, 更新

使用版本 2.7.0

修改前請先備份下列檔案：
themes/模板名稱/flow.dwt
flow.php

開啟 themes/模板名稱/flow.dwt

搜尋

name="goods_number[{$goods.rec_id}]"

複製代碼

會找到類似這段... (依據個人使用的模組不同會有些許差異)

<input class="TextInput" name="goods_number[{$goods.rec_id}]" id="goods_number_{$goods.rec_id}" value="{$goods.goods_number}" type="text" size="4" onkeydown="showdiv(this)"/>

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置換成... (依據個人使用的模組不同會有些許差異)

<input class="TextInput" 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}" size="4" id="ECS_FORMBUY">

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搜尋

複製代碼

在下面加入

<script type="text/javascript">
/**
* 點選可選屬性或改變數量時修改商品價格的函數
*/
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_cart_ajax&rec_id=' + rec_id +'&number=' + number, changePriceResponse, 'GET', 'JSON');
}
/**
* 接收返回的信息
*/
function changePriceResponse(res)
{
document.getElementById('goods_number_' + res.rec_id).value = res.goods_number;
if (res.error > 0)
{
alert(res.content);
}
else
{
document.getElementById('subtotal_'+res.rec_id).innerHTML = res.subtotal;//商品小計
document.getElementById('cart_amount_desc').innerHTML = res.cart_amount_desc;//購物車商品總價說明
document.getElementById('market_amount_desc').innerHTML = res.market_amount_desc;//購物車商品總市價說明
}
}
</script>

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搜尋

{$goods.subtotal}

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替換為

<div id="subtotal_{$goods.rec_id}">{$goods.subtotal}</div>

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{$shopping_money}

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替換為

<span id="cart_amount_desc">{$shopping_money}</span>

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搜尋
{$market_price_desc}
替換為
<span id="market_amount_desc">{$market_price_desc}</span>

搜尋

{$lang.update_cart}

複製代碼

會找到類似這段... (依據個人使用的模組不同會有些許差異)

<input name="submit" type="submit" class="bnt_num6" value="{$lang.update_cart}" />

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將上面整段移除

搜尋

value="update_cart"

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會找到類似這段... (依據個人使用的模組不同會有些許差異)

<input type="hidden" name="step" value="update_cart" />

複製代碼

將上面整段移除

存檔關閉後上傳...

開啟 flow.php

搜尋

elseif ($_REQUEST['step'] == 'update_cart')

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在上面加入

elseif($_REQUEST['step'] == 'update_cart_ajax')
{
/*------------------------------------------------------ */
//-- AJAX更新購物車
/*------------------------------------------------------ */
include_once('includes/cls_json.php');
$json = new JSON();
$result = array('error' => '', 'content' => '');
$rec_id = $_GET['rec_id'];
$number = $_GET['number'];
#判斷輸入是否合法
if(!is_numeric($number))
{
$result['error'] = '1';
$result['content'] = $_LANG['goods_number_not_int'];
die($json->encode($result));
}
$goods_number = array($_GET['rec_id'] => $_GET['number']);
if (isset($goods_number) && is_array($goods_number))
{
if(flow_update_cart_ajax($goods_number)){
die($json->encode(flow_update_cart_ajax($goods_number)));
}
}
/* 取得商品列表，計算合計 */
$cart_goods = get_cart_goods();
#計算此訂單總價
$subtotal = $GLOBALS['db']->getONE("select goods_price * goods_number AS subtotal from ".$GLOBALS['ecs']->table('cart')." where rec_id = $rec_id");
#購物車商品總金額
$result['goods_number'] = $number;
$result['subtotal'] = price_format($subtotal, false);
$result['cart_amount_desc'] = sprintf($_LANG['shopping_money'], $cart_goods['total']['goods_price']);
$result['market_amount_desc'] = sprintf($_LANG['than_market_price'], $cart_goods['total']['market_price'], $cart_goods['total']['saving'], $cart_goods['total']['save_rate']
);
$result['rec_id'] = $rec_id;
die($json->encode($result));
}

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搜尋

function flow_update_cart($arr)

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在上面加入

function flow_update_cart_ajax($arr)
{
foreach ($arr AS $key => $val)
{
$val = intval(make_semiangle($val));
$sql = "SELECT `goods_id`, `goods_attr_id`, `extension_code`,`goods_number` FROM" .$GLOBALS['ecs']->table('cart').
" WHERE rec_id='$key' AND session_id='" . SESS_ID . "'";
$goods = $GLOBALS['db']->getRow($sql);
$sql = "SELECT g.goods_name, g.goods_number ".
"FROM " .$GLOBALS['ecs']->table('goods'). " AS g, ".
$GLOBALS['ecs']->table('cart'). " AS c ".
"WHERE g.goods_id = c.goods_id AND c.rec_id = '$key'";
$row = $GLOBALS['db']->getRow($sql);
$result['error'] = '1';
$result['rec_id'] = $key;
/* 數量是否小於0 */
if ($val <= 0)
{
$result['goods_number'] = $goods['goods_number'];
$result['content'] = $GLOBALS['_LANG']['goods_number_not_int'];
return $result;
}
/* 系統啟用了庫存，檢查輸入的商品數量是否有效 */
if (intval($GLOBALS['_CFG']['use_storage']) > 0 && $goods['extension_code'] != 'package_buy')
{
if ($row['goods_number'] < $val)
{
$result['goods_number'] = $goods['goods_number'];
$result['content'] =sprintf($GLOBALS['_LANG']['stock_insufficiency'], $row['goods_name'],$row['goods_number'], $row['goods_number']);
return $result;
}
}
elseif (intval($GLOBALS['_CFG']['use_storage']) > 0 && $goods['extension_code'] == 'package_buy')
{
if (judge_package_stock($goods['goods_id'], $val))
{
$result['content'] =$GLOBALS['_LANG']['package_stock_insufficiency'];
return $result;
}
}
/* 檢查該項是否為基本件以及有沒有配件存在 */
$sql = "SELECT a.goods_number, a.rec_id FROM " .$GLOBALS['ecs']->table('cart') . " AS b ".
"LEFT JOIN " . $GLOBALS['ecs']->table('cart') . " AS a ".
"ON a.parent_id = b.goods_id AND a.session_id = '" . SESS_ID . "' AND a.extension_code <> 'package_buy'".
"WHERE b.rec_id = '$key'";
$fittings = $GLOBALS['db']->getAll($sql);
if ($val > 0)
{
foreach ($fittings AS $k => $v)
{
if ($v['goods_number'] != null && $v['rec_id'] != null)
{
/* 該商品有配件，更新配件的商品數量 */
$num = ($v['goods_number']) > $val ? $val : $v['goods_number'];
$sql = "UPDATE " . $GLOBALS['ecs']->table('cart') .
" SET goods_number = '$num' WHERE rec_id = $v[rec_id]";
$GLOBALS['db']->query($sql);
}
}
if ($goods['extension_code'] == 'package_buy')
{
/* 更新購物車中的商品數量 */
$sql = "UPDATE " .$GLOBALS['ecs']->table('cart').
" SET goods_number = '$val' WHERE rec_id='$key' AND session_id='" . SESS_ID . "'";
}
else
{
$attr_id = empty($goods['goods_attr_id']) ? array() : explode(',', $goods['goods_attr_id']);
$goods_price = get_final_price($goods['goods_id'], $val, true, $attr_id);
/* 更新購物車中的商品數量 */
$sql = "UPDATE " .$GLOBALS['ecs']->table('cart').
" SET goods_number = '$val', goods_price = '$goods_price' WHERE rec_id='$key' AND session_id='" . SESS_ID . "'";
}
}
else
{
if (is_object($fittings) && $fittings->goods_number != null && $fittings->rec_id != null)
{
$sql = "DELETE FROM " . $GLOBALS['ecs']->table('cart'). " WHERE rec_id=$fittings[rec_id]";
$GLOBALS['db']->query($sql);
}
$sql = "DELETE FROM " .$GLOBALS['ecs']->table('cart').
" WHERE rec_id='$key' AND session_id='" .SESS_ID. "'";
}
$GLOBALS['db']->query($sql);
}
/* 刪除所有贈品 */
$sql = "DELETE FROM " . $GLOBALS['ecs']->table('cart') . " WHERE session_id = '" .SESS_ID. "' AND is_gift <> 0";
$GLOBALS['db']->query($sql);
}