与Woocommerce wc_create_refund的问题

Question

我们想要创建一个从网络钩退款，但退款金额似乎是三倍的退款金额。

下面是我们的代码，这是只触发一次。

$order_id = (isset($_REQUEST["order_id"]) && strlen($_REQUEST["order_id"]) > 0) ? intval($_REQUEST["order_id"]) : false;
$amount = (isset($_REQUEST["amount"]) && strlen($_REQUEST["amount"]) > 0) ? floatval($_REQUEST["amount"]) : false;
$reason = (isset($_REQUEST["reason"]) && strlen($_REQUEST["reason"]) > 0) ? $_REQUEST["reason"] : false;
if ($order_id) {
    $order = wc_get_order($order_id);
    if ($order->get_remaining_refund_amount() >= $amount) {
        $refund = wc_create_refund(array(
            'amount' => $amount,
            'reason' => $reason,
            'order_id' => $order_id,
            'refund_payment' => true
        ));
        if (is_wp_error($refund)) {
            if ($refund->get_error_message() == 'Invalid refund amount.') {

                echo 'Refund requested exceeds remaining order balance of ' . $order->get_formatted_order_total();
            } else {
                echo $refund->get_error_message();
            }
        } else {
            echo $refund->get_id();
        }
    } else {
        echo 'Refund requested exceeds remaining order balance of ' . $order->get_formatted_order_total();
    }

}

但是你可以从下面的截图中看到，它似乎是退款价值的三倍，但不确定原因。

​

​

有人能解释一下为什么会发生这种事吗。

请求以带有唯一密钥标识符的post http请求的形式出现。例如

https://example.com/process-refunds/?key=ff5f61b5a9d6ff2a5d7fb9fc815113d4&order_id=1234&amount=100&reason=Testing

Answer 1

尝试调用init钩子中的函数(添加到主题的'functions.php')，这个函数对我很好。

add_action( 'init', 'wc_manual_refund' );

function wc_manual_refund()
{
    $order_id = (isset($_REQUEST["order_id"]) && strlen($_REQUEST["order_id"]) > 0) ? intval($_REQUEST["order_id"]) : false;
    $amount = (isset($_REQUEST["amount"]) && strlen($_REQUEST["amount"]) > 0) ? floatval($_REQUEST["amount"]) : false;
    $reason = (isset($_REQUEST["reason"]) && strlen($_REQUEST["reason"]) > 0) ? $_REQUEST["reason"] : false;

    if ($order_id) {
        $order = wc_get_order($order_id);

        if ($order->get_remaining_refund_amount() >= $amount) {
            $refund = wc_create_refund(array(
                'amount' => $amount,
                'reason' => $reason,
                'order_id' => $order_id,
                'refund_payment' => true
            ));
            if (is_wp_error($refund)) {
                if ($refund->get_error_message() == 'Invalid refund amount.') {
                    echo 'Refund requested exceeds remaining order balance of ' . $order->get_formatted_order_total();
                } else {
                    echo $refund->get_error_message();
                }
            } else {
                echo $refund->get_id();
            }
        } else {
            echo 'Refund requested exceeds remaining order balance of ' . $order->get_formatted_order_total();
        }       
    }
}

Answer 2

检查条件，得到最大退款金额。并通过使用静态变量确保代码只运行一次。

static $result;

$order = wc_get_order($order_id);

$max_refund = wc_format_decimal($order->get_total() - $order->get_total_refunded());
    if (!$max_refund) {
      return;
    }

if($result == null){
// Create the refund object
$refund = wc_create_refund(array('amount' => $max_refund, 'reason' => __('Order Fully Refunded', 'woocommerce'), 'order_id' => $order_id, 'line_items' => array()));
wc_delete_shop_order_transients($order_id);

} 
$result = 'code-already-run';

我希望它能帮到你。