我想在 Woocommerce 购物车页面的 Woocommerce 购物车优惠券区域下添加注释字段。该字段应该类似于 Woocommerce 结帐页面的“订单注释”字段，客户可以在其中添加一些注释。
到目前为止，我有这段代码指示我想要的位置：
add_action ('woocommerce_after_cart_table','add_content_below_cart_coupon');
function add_content_below_cart_coupon () {
echo 'this will show below the cart cuopon';
}
如何在此区域中添加备注字段，以便这些客户备注也会出现在结帐页面的订单详细信息中？
Thanks!
我解决了这个问题，但有点hacky，我建议将其放入插件中
/**
* Add the order_comments field to the cart
**/
add_action('woocommerce_cart_collaterals', 'order_comments_custom_cart_field');
function order_comments_custom_cart_field() {
echo '<div id="cart_order_notes">';
?>
<div class="customer_notes_on_cart">
<label for="customer_notes_text"><?php _e('Order notes','woocommerce'); ?></label>
<textarea id="customer_notes_text"></textarea>
</div>
<?php
}
/**
* Process the checkout and overwriting the normal button
*
*/
function woocommerce_button_proceed_to_checkout() {
$checkout_url = wc_get_checkout_url();
?>
<form id="checkout_form" method="POST" action="<?php echo $checkout_url; ?>">
<input type="hidden" name="customer_notes" id="customer_notes" value="">
<a href="#" onclick="document.getElementById('customer_notes').value=document.getElementById('customer_notes_text').value;document.getElementById('checkout_form').submit()" class="checkout-button button alt wc-forward">
<?php _e( 'Proceed to checkout', 'woocommerce' ); ?></a>
</form>
<?php
}
// getting the values in checkout again
add_action('woocommerce_checkout_before_customer_details',function(){
?>
<script>
jQuery( document ).ready(function() {
jQuery('#order_comments' ).val("<?php echo sanitize_text_field($_POST['customer_notes']); ?>");
});
</script>
<?php
});