[英]PayPal Variable Price Smart Button Does Not Execute Without User Input?
PayPal 的可變定價智能按鈕結賬有一個額外的字段,需要用戶定義的目的不是很清楚。
即使是像在輸入字段的值中預先歸檔這樣基本的東西也會阻止它正常運行。 例如
<input type="text" name="descriptionInput" id="description" maxlength="127" value="My Item Description">
此處的代碼生成器: https://www.paypal.com/buttons/smart
我的目標是有一個可變價格表格,用戶可以在其中更改價值金額,但如果他們已經對輸入字段內的預定義建議感到滿意,則不需要用戶輸入,除非在空白處有一些用戶輸入按鈕腳本不執行的描述字段或付款金額字段。
如何允許 Paypal 按鈕執行而無需用戶在任一字段中輸入?
代碼示例:
<div id="smart-button-container">
<div style="text-align: center"><label for="description"> </label><input type="text" name="descriptionInput" id="description" maxlength="127" value=""></div>
<p id="descriptionError" style="visibility: hidden; color:red; text-align: center;">Please enter a description</p>
<div style="text-align: center"><label for="amount"> </label><input name="amountInput" type="number" id="amount" value="" ><span> USD</span></div>
<p id="priceLabelError" style="visibility: hidden; color:red; text-align: center;">Please enter a price</p>
<div id="invoiceidDiv" style="text-align: center; display: none;"><label for="invoiceid"> </label><input name="invoiceid" maxlength="127" type="text" id="invoiceid" value="" ></div>
<p id="invoiceidError" style="visibility: hidden; color:red; text-align: center;">Please enter an Invoice ID</p>
<div style="text-align: center; margin-top: 0.625rem;" id="paypal-button-container"></div>
</div>
<script src="https://www.paypal.com/sdk/js?client-id=sb¤cy=USD" data-sdk-integration-source="button-factory"></script>
<script>
function initPayPalButton() {
var description = document.querySelector('#smart-button-container #description');
var amount = document.querySelector('#smart-button-container #amount');
var descriptionError = document.querySelector('#smart-button-container #descriptionError');
var priceError = document.querySelector('#smart-button-container #priceLabelError');
var invoiceid = document.querySelector('#smart-button-container #invoiceid');
var invoiceidError = document.querySelector('#smart-button-container #invoiceidError');
var invoiceidDiv = document.querySelector('#smart-button-container #invoiceidDiv');
var elArr = [description, amount];
if (invoiceidDiv.firstChild.innerHTML.length > 1) {
invoiceidDiv.style.display = "block";
}
var purchase_units = [];
purchase_units[0] = {};
purchase_units[0].amount = {};
function validate(event) {
return event.value.length > 0;
}
paypal.Buttons({
style: {
color: 'gold',
shape: 'rect',
label: 'paypal',
layout: 'vertical',
},
onInit: function (data, actions) {
actions.disable();
if(invoiceidDiv.style.display === "block") {
elArr.push(invoiceid);
}
elArr.forEach(function (item) {
item.addEventListener('keyup', function (event) {
var result = elArr.every(validate);
if (result) {
actions.enable();
} else {
actions.disable();
}
});
});
},
onClick: function () {
if (description.value.length < 1) {
descriptionError.style.visibility = "visible";
} else {
descriptionError.style.visibility = "hidden";
}
if (amount.value.length < 1) {
priceError.style.visibility = "visible";
} else {
priceError.style.visibility = "hidden";
}
if (invoiceid.value.length < 1 && invoiceidDiv.style.display === "block") {
invoiceidError.style.visibility = "visible";
} else {
invoiceidError.style.visibility = "hidden";
}
purchase_units[0].description = description.value;
purchase_units[0].amount.value = amount.value;
if(invoiceid.value !== '') {
purchase_units[0].invoice_id = invoiceid.value;
}
},
createOrder: function (data, actions) {
return actions.order.create({
purchase_units: purchase_units,
});
},
onApprove: function (data, actions) {
return actions.order.capture().then(function (details) {
alert('Transaction completed by ' + details.payer.name.given_name + '!');
});
},
onError: function (err) {
console.log(err);
}
}).render('#paypal-button-container');
}
initPayPalButton();
</script>
您說的是按鈕類型:具體來說是“可變價格”。
由於使用這樣的按鈕,付款人可以支付任何金額,因此“描述”字段是為他們提供 state 他們正在支付的費用,否則您將不知道付款的目的。 您可以啟用的可選發票 ID(通過輸入標簽)供他們輸入發票 ID(如果您使用此類 ID)。
如果您需要帶有一些預定義描述的可變金額付款,請設置它(關閉自動完成)並隱藏 div。
<div style="text-align: center; display:none;"><label for="description">no</label><input type="text" name="descriptionInput" id="description" maxlength="127" value="my super description no one can change" autocomplete="off" /></div>
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