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好吧，基本上我已經被賦予了爲我們生成付款頁面的任務。 我有一個小問題。我的老闆希望我整合谷歌結帳，並且我工作得很好。 他還希望我定義一個最小訂單。如何比較JavaScript中的最小訂單數量值
例如：我們在「11.00£」賣每標籤「1000」，但最低發票「£33.00」
我有我的設置頁面4盒。一個是數量（Quantity），另一個是成本（Price）和兩個隱藏字段。 其中一個領域是谷歌結帳（產品價格） 最後一場是我放在那裏的隱藏領域，試圖比較價格和更新成本。
目前，我有我的量的變化文本框onChange事件，這樣的：
function labels_1() {
var cost;
var costper1k = '11.00';
var qty = orderform.labels_1_qty.value;
if (isNaN(qty)) {
orderform.labels_1_cost.value = "Not a Valid Quantity";
}
else if (qty < 0) {
orderform.labels_1_cost.value = "Negative Quantity";
}
else {
cost = ((qty/1000)*costper1k);
}
orderform.labels_1_cost.value = formatCurrency(cost);
orderform.hiddenprice_1.value = cost;
orderform.prodprice_1.value = orderform.labels_1_cost.value;
orderform.productname_1.value='26x44mm (4a) 76mm Cores'+' x '+orderform.labels_1_qty.value;
}
這是運作良好，也無最低發票金額的驗證。
我有這6個功能，都是這樣，因爲我們賣6種標籤類型。正如我所說的，谷歌結帳工作正常與所有這些。
我試圖創建此：
function hidden_1() {
var cost = '33.00';
var originalcost = orderform.labels_1_cost.value;
var a = Number(orderform.hidden_1.value);
var b = Number(orderform.hidden_2.value);
var c = Number(orderform.hidden_3.value);
var d = Number(orderform.hidden_4.value);
var e = Number(orderform.hidden_5.value);
var f = Number(orderform.hidden_6.value);
var total = a+b+c+d+e+f;
if (total.value < '33'){
orderform.labels_1_cost.value = formatCurrency(cost);}
if (total.value > '33') {
orderform.labels_1_cost.value = originalcost;}
}
和追加hidden_1（）;到label_1（）函數的末尾。
它不起作用，我正在試圖修理它。我甚至不確定我是這麼做的。
任何人都可以提供任何幫助嗎？ 非常感謝
編輯
對不起，這裏是我的formatCurrency功能：
function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
sign = (num == (num = Math.abs(num)));
num = Math.floor(num*100+0.50000000001);
cents = num%100;
num = Math.floor(num/100).toString();
if(cents<10)
cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+
num.substring(num.length-(4*i+3));
return (((sign)?'':'-') + '£' + num + '.' + cents);
}
全部站點代碼： Order.php：
<html>
<head>
<style type="text/css" media="screen">@import "css/forms-style.css";</style>
<script type="text/javascript" src="js/labels.js"></script>
</head>
<script id="googlecart-script" type="text/javascript"
src="http://checkout.google.com/seller/gsc/v2/cart.js?mid=REMOVED!!!"
currency="GBP"
highlight-time="5000"
highlight-color="#FF7878"
cart-opening-time="500"
hide-cart-when-empty="true"
close-cart-when-click-away="false"
post-cart-to-sandbox="true">
</script>
<body>
<div id="wrapper">
<form name="orderform">
<!-- ----------------------------------------------------------------------- -->
<div id="content">
<div class="heading-section">
<h2>Printed Labels</h2>
<p>All Printed Labels come outside wound, with a standard <strong>10 item setups per roll.</strong></p>
<p>The minimum Invoice amount is <strong>£30.00</strong></p>
</div>
<div align="center" id="statement">Hover Over Images To Zoom</div>
<br/>
<p>
<?php tableformat('1', '26x44mm (4a) 76mm Cores','26x44mm Labels. Custom options are available for these labels. They can include the text SPECIAL BUY or SPECIAL PURCHASE overprinted in <font color=red><strong>RED</strong></font> ink. These labels can also include a Country of Origin and the John lewis Address. The labels are also available in blockout (opaque) backing, to be used for repricing, or generally covering other labels.','Style: <select class="product-attr-color">
<option>Normal</option>
<option>Special Buy</option>
<option>Special Purchase</option>
<option>Opaque Backing Material</option>
</select>','img/img_1.png','img/img_7.png','img/img_8.png','img/img_1_thumb.png','img/img_7_thumb.png','img/img_8_thumb.png'); ?>
<?php tableformat('2', '44x26mm (2a) 76mm Cores','44x26mm Labels. Custom options are available for these labels. They can include the text SPECIAL BUY or SPECIAL PURCHASE overprinted in <font color=red><strong>RED</strong></font> ink. These labels can also include a Country of Origin and the John lewis Address. The labels are also available in blockout (opaque) backing, to be used for repricing, or generally covering other labels.','Style: <select class="product-attr-color">
<option>Normal</option>
<option>Special Buy</option>
<option>Special Purchase</option>
<option>Opaque Backing Material</option>
</select>','img/img_2.png','','','img/img_2_thumb.png','',''); ?>
<?php tableformat('3', '35x13mm (2a) 76mm Cores','35x13mm Labels. These Labels can include a Country of Origin. Please Note, the size of the label is fairly limited','','img/img_3.png','','','img/img_3_thumb.png','',''); ?>
<?php tableformat('4', '80x10mm [dumbells] (1a) 76mm Cores','80x10mm Dumbell Labels. These Labels can be produced with either an EAN8 or an EAN13 consumer code','','img/img_4.png','','','img/img_4_thumb.png','',''); ?>
<?php tableformat('5', '25x10mm [price only] (4a) 76mm Cores','25x10mm Labels. These Small labels may include a Price Only. No text will be printed on these labels. If you require Text, please look at some of the other sizes above','','img/img_5.png','','','img/img_5_thumb.png','',''); ?>
<?php tableformat('6', '15x8mm [price only] (4a) 76mm Cores','15x8mm Labels. These Small labels may include a Price Only. No text will be printed on these labels. If you require Text, please look at some of the other sizes above','','img/img_6.png','','','img/img_6_thumb.png','',''); ?>
</p>
<div class="heading-section" align="right">
<input type="reset">
<!-- ----------------------------------------------------------------------- -->
</hr>
</h2>
</div>
</div>
</form>
<br/><br/>
</div>
</div>
</body>
</html>
<?php
function tableformat($num, $label, $labeldesc, $options, $pic1, $pic2, $pic3, $thumb1, $thumb2, $thumb3) {
echo
'<div id="'.$num.'" class="section">
<div class="product">
<table border=0 width=100% align=center class="product-table">
<tr valign=top bgcolor=3366cc>
<td colspan=4><span class="product-name">'.$label.'</span> <a class="p1" href="#v"><img onerror="this.style.display=\'none\'" src="'.$thumb1.'" alt=""><b><img class="large" onerror="this.style.display=\'none\'" src="'.$pic1.'" alt=""></b></a> <a class="p1" onerror="this.style.display=\'none\'" ;href="#v"><img onerror="this.style.display=\'none\'" src="'.$thumb2.'" alt=""><b><img onerror="this.style.display=\'none\'" class="large" src="'.$pic2.'" alt=""></b></a> <a class="p1" href="#v"><img onerror="this.style.display=\'none\'" src="'.$thumb3.'" alt=""><b><img class="large" onerror="this.style.display=\'none\'" src="'.$pic3.'" alt=""></b></a></td>
<input type="hidden" name="productname_'.$num.'" class="product-title" value="0"/>
</tr>
<tr><td> </td>
</tr>
<tr>
<td align="left" colspan="2">
<span id="labels_'.$num.'_exp">'.$labeldesc.'</span>
</td>
</tr>
<tr><td> </td>
</tr>
<tr valign=center align=right>
<td width=30%>
</td>
<td width=auto>
'.$options.'
<strong>Quantity:</strong> <input type="text" name="labels_'.$num.'_qty" size="10" value=0 onChange="OnChan();">
<strong>Price:</strong> <input type="text" name="labels_'.$num.'_cost" class="form-cost" size="10" value="0.00" onChange="OnChan();">
<input type="hidden" name="prodprice_'.$num.'" class="product-price" value="£0.00"/>
<input type="hidden" name="hiddenprice_'.$num.'" value="0.00"/>
</td>
</tr>
<tr>
<td> </td>
</tr>
<td width=30%>
</td>
<td width=auto align=right>
<div role="button" alt="Add to cart" tabindex="0" class="googlecart-add-button" onClick="hidden_'.$num.';">
</div>
</td>
</tr>
</table>
<br/>
<br/>
</div></div>';
} // tableformat
?>
個labels.js是在這裏：
function formatCurrency(num) {
num = num.toString().replace(/\$|\,/g,'');
if(isNaN(num))
num = "0";
sign = (num == (num = Math.abs(num)));
num = Math.floor(num*100+0.50000000001);
cents = num%100;
num = Math.floor(num/100).toString();
if(cents<10)
cents = "0" + cents;
for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
num = num.substring(0,num.length-(4*i+3))+','+
num.substring(num.length-(4*i+3));
return (((sign)?'':'-') + '£' + num + '.' + cents);
}
function isPositiveInteger(val){
if(val==null){return false;}
if (val.length==0){return false;}
for (var i = 0; i < val.length; i++) {
var ch = val.charAt(i)
if (ch < "0" || ch > "9") {
return false
}
}
return true;
}
/* -----------------------------------------------------------------------------
LABELS - 1
----------------------------------------------------------------------------- */
function labels_1() {
var cost, desc;
var costper1k = '11.00';
var qty = orderform.labels_1_qty.value;
if (isNaN(qty)) {
orderform.labels_1_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_1_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else {
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_1_cost.value = formatCurrency(cost);
alert("test - end of normal");
hidden_1();
}
/* -----------------------------------------------------------------------------
Hidden - 1
----------------------------------------------------------------------------- */
function hidden_1() {
alert("starting");
var costed = '33.00';
var originalcost = orderform.labels_1_cost.value;
var a = Number(orderform.hidden_1.value);
var b = Number(orderform.hidden_2.value);
var c = Number(orderform.hidden_3.value);
var d = Number(orderform.hidden_4.value);
var e = Number(orderform.hidden_5.value);
var f = Number(orderform.hidden_6.value);
var total = a+b+c+d+e+f;
if (total < 33){
orderform.labels_1_cost.value = costed;}
if (total => 33) {
orderform.labels_1_cost.value = originalcost;}
alert("ending");
}
/* -----------------------------------------------------------------------------
LABELS - 2
----------------------------------------------------------------------------- */
function labels_2() {
var cost, desc;
var costper1k = '11.00';
var qty = orderform.labels_2_qty.value;
if (isNaN(qty)) {
orderform.labels_2_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_2_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else {
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_2_cost.value = formatCurrency(cost);
}
/* -----------------------------------------------------------------------------
LABELS - 3
----------------------------------------------------------------------------- */
function labels_3() {
var cost, desc;
var costper1k = '11.00';
var qty = orderform.labels_3_qty.value;
if (isNaN(qty)) {
orderform.labels_3_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_3_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else{
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_3_cost.value = formatCurrency(cost);
}
/* -----------------------------------------------------------------------------
LABELS - 4
----------------------------------------------------------------------------- */
function labels_4() {
var cost, desc;
var costper1k = '13.75';
var qty = orderform.labels_4_qty.value;
if (isNaN(qty)) {
orderform.labels_4_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_4_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else {
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_4_cost.value = formatCurrency(cost);
}
/* -----------------------------------------------------------------------------
LABELS - 5
----------------------------------------------------------------------------- */
function labels_5() {
var cost, desc;
var costper1k = '7.89';
var qty = orderform.labels_5_qty.value;
if (isNaN(qty)) {
orderform.labels_5_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_5_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else {
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_5_cost.value = formatCurrency(cost);
}
/* -----------------------------------------------------------------------------
LABELS - 6
----------------------------------------------------------------------------- */
function labels_6() {
var cost, desc;
var costper1k = '10.14';
var qty = orderform.labels_6_qty.value;
if (isNaN(qty)) {
orderform.labels_6_cost.value = "Not a Valid Quantity";
desc = 'Not a Valid Quantity';
}
else if (qty < 0) {
orderform.labels_6_cost.value = "Negative Quantity";
desc = 'Not a Valid Quantity';
}
else {
cost = ((qty/1000)*costper1k);
desc = qty+' ordered at a cost of '+formatCurrency(cost);
}
orderform.labels_6_cost.value = formatCurrency(cost);
}
/* -----------------------------------------------------------------------------
OnChan (Changes)
----------------------------------------------------------------------------- */
function OnChan() {
labels_1();
labels_2();
labels_3();
labels_4();
labels_5();
labels_6();
orderform.prodprice_1.value=orderform.labels_1_cost.value;
orderform.prodprice_2.value=orderform.labels_2_cost.value;
orderform.prodprice_3.value=orderform.labels_3_cost.value;
orderform.prodprice_4.value=orderform.labels_4_cost.value;
orderform.prodprice_5.value=orderform.labels_5_cost.value;
orderform.prodprice_6.value=orderform.labels_6_cost.value;
orderform.productname_1.value='26x44mm (4a) 76mm Cores'+' x '+orderform.labels_1_qty.value;
orderform.productname_2.value='44x26mm (2a) 76mm Cores'+' x '+orderform.labels_2_qty.value;
orderform.productname_3.value='35x13mm (2a) 76mm Cores'+' x '+orderform.labels_3_qty.value;
orderform.productname_4.value='80x10mm [dumbells] (1a) 76mm Cores'+' x '+orderform.labels_4_qty.value;
orderform.productname_5.value='25x10mm [price only] (4a) 76mm Cores'+' x '+orderform.labels_5_qty.value;
orderform.productname_6.value='15x8mm [price only] (4a) 76mm Cores'+' x '+orderform.labels_6_qty.value;
}
和測試網站是安裝在：
http://mrotacon.heliohost.org/testing/order.php
也 - 在這裏是沒有比較，工作正常的測試版...但我需要最小發票金額
http://mrotacon.heliohost.org/testing/orderworking.php
你的代碼太溼了。你應該嘗試尋找一種方法來製作乾燥（不重複自己）。 – danniel 2011-04-18 19:02:53
我會的，別擔心 - 現在只需要一個快速頁面，當我有一些實際的空閒時間時，我會改變它 – Dave 2011-04-18 19:11:09