WooCommerce 有条件地显示订单评论并使其成为必需的

Question

On Checkout page, I would like to show the comment field, only if a coupon code is applied. In this case this comment field should be a required field.

除了必需状态变为可选状态之外，下面的示例有效。

我将评论设置为默认要求，然后我假设在取消设置后，要求的状态将被忽略。

这是需要评论的片段：

$fields['order']['order_comments']['required'] = true;

此代码段查找优惠券代码，然后显示一条消息。我不需要该消息，所以我将其留空，然后我添加了隐藏评论的行：

add_action( 'woocommerce_before_checkout_form' , 'product_checkout_custom_content' );

function product_checkout_custom_content() {
global $woocommerce;

$msgs = array('mycouponcode'=>'');

$applied_coupon = $woocommerce->cart->applied_coupons;
    if( ! array_key_exists($applied_coupon[0], $msgs) ) {

// Hides the order comments    
        unset( $fields['order']['order_comments'] );
        add_filter( 'woocommerce_enable_order_notes_field', '__return_false' );

// Here I need to make the order_comments optional, not required

//          echo $msgs[$applied_coupon[0]];
    }
}

如何在同一操作中将订单评论设置为可选？

Answer 1

To make that work, you don't need function product_checkout_custom_content(). Instead you have to make some change in the function where is included $fields['order']['order_comments']['required'] = true;.

我想这是一个挂钩在 woocommerce_checkout_fields 中的函数。因此，在该函数中，您必须将 $fields['order']['order_comments']['required'] = true; 替换为函数内的代码：

// CHECKOUT PAGE - CUSTOMIZING comment field (conditional behavior).
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );
function custom_override_checkout_fields( $fields ) {

    //Set your coupon slug here:
    $coupon = 'coupon_slug';
    // Coupon is applied: Changing Comment field Label, placeholder and setting "REQUIRED"
    if ( in_array( '$coupon, WC()->cart->applied_coupons ) ){ 
        $fields['order']['order_comments']['label'] = __('Your comment label…', 'my_theme_slug');
        $fields['order']['order_comments']['placeholder'] = __('Enter here something', 'my_theme_slug');
        $fields['order']['order_comments']['required'] = true;
    } else {
        // Removes the comment field + block title
        unset($fields['order']['order_comments']);
        add_filter( 'woocommerce_enable_order_notes_field', '__return_false' );
    }

    return $fields;

}

你不需要其他任何东西……

代码进入您的活动子主题（或主题）的 function.php 文件或任何插件文件。

此代码已经过测试并且有效。

参考：Remove the Additional Information and Order Notes fields in WooCommerce

WooCommerce 有条件地显示订单评论并使其成为必需的

WooCommerce conditionally show order comments and make it required

php

wordpress

woocommerce

field

checkout