Woocommerce退款电子邮件

我已经进行了大量的搜索，虽然我发现用户已经询问如何实现以下功能，但是根据我的知识，没有任何工作解决方案的例子存在 .

问题是关于非常流行的Wordpress插件“Woocommerce” . 该插件附带一个电子邮件系统，使电子商务网站所有者和客户的生活更轻松 . 一个问题是，当商店经理将订单状态更改为“已退款”时，不会发送电子邮件 . 有人说这是因为它是一个手动过程 . 这是事实，这是店主通过商家帐户或PayPal帐户进行的过程 . 但是一旦完成并且店主然后登录他们的wordpress管理面板并将订单状态更改为退款，那么生成电子邮件并向客户发送将是有益的 .

这是我见过的要求 .

所以我决定在http://www.skyverge.com/blog/how-to-add-a-custom-woocommerce-email/#comment-553147修改一个教程

当订单状态更新为“已退款”时，我正在尝试发送电子邮件 .

这是初始插件文件的代码

<?php
/**
 * Plugin Name: WooCommerce Custom Expedited Order Email
 * Plugin URI: http://www.skyverge.com/blog/how-to-add-a-custom-woocommerce-email/
 * Description: Demo plugin for adding a custom WooCommerce email that sends admins an email when an order is received with expedited shipping
 * Author: SkyVerge
 * Author URI: http://www.skyverge.com
 * Version: 0.1
 *
 * License: GNU General Public License v3.0
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 *
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

/**
 *  Add a custom email to the list of emails WooCommerce should load
 *
 * @since 0.1
 * @param array $email_classes available email classes
 * @return array filtered available email classes
 */
function add_expedited_order_woocommerce_email( $email_classes ) {

    // include our custom email class
    require( 'includes/class-wc-expedited-order-email.php' );

    // add the email class to the list of email classes that WooCommerce loads
    $email_classes['WC_Expedited_Order_Email'] = new WC_Expedited_Order_Email();

    return $email_classes;

}
add_filter( 'woocommerce_email_classes', 'add_expedited_order_woocommerce_email' );

这是我 class 代码的链接

<?php

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

/**
 * A custom Expedited Order WooCommerce Email class
 *
 * @since 0.1
 * @extends \WC_Email
 */
class WC_Expedited_Order_Email extends WC_Email {

    /**
 * Set email defaults
 *
 * @since 0.1
 */
    public function __construct() {

        // set ID, this simply needs to be a unique name
        $this->id = 'wc_expedited_order';

        // this is the title in WooCommerce Email settings
        $this->title = 'Refunded Order Email';

        // this is the description in WooCommerce email settings
        $this->description = 'Refunded Emails are sent when an order status has been changed to Refunded';

        // these are the default heading and subject lines that can be overridden using the settings
        $this->heading = 'Refunded Order';
        $this->subject = 'Refunded Order';

        // these define the locations of the templates that this email should use, we'll just use the new order template since this email is similar
        $this->template_html  = 'emails/admin-new-order.php';
        $this->template_plain = 'emails/plain/admin-new-order.php';

        // Trigger on new paid orders
        add_action( 'woocommerce_order_status_pending_to_processing_notification', array( $this, 'trigger' ) );
        add_action( 'woocommerce_order_status_failed_to_processing_notification',  array( $this, 'trigger' ) );

        // Call parent constructor to load any other defaults not explicity defined here
        parent::__construct();

        // this sets the recipient to the settings defined below in init_form_fields()
        $this->recipient = $this->get_option( 'recipient' );

        // if none was entered, just use the WP admin email as a fallback
        if ( ! $this->recipient )
            $this->recipient = get_option( 'admin_email' );
    }

    /**
     * Determine if the email should actually be sent and setup email merge variables
     *
     * @since 0.1
     * @param int $order_id
     */
    public function trigger( $order_id ) {

        // bail if no order ID is present
        if ( ! $order_id )
            return;

        $order = new WC_Order( $order_id );

          //bail if not a refunded order
        if ( 'refunded' !== $order->status ) {
              return;
        }

        // setup order object
        $this->object = new WC_Order( $order_id );

        // bail if shipping method is not expedited
        //if ( ! in_array( $this->object->get_shipping_method(), array( 'Three Day Shipping', 'Next Day Shipping' ) ) )
            //return;

        // replace variables in the subject/headings
        $this->find[] = '{order_date}';
        $this->replace[] = date_i18n( woocommerce_date_format(), strtotime( $this->object->order_date ) );

        $this->find[] = '{order_number}';
        $this->replace[] = $this->object->get_order_number();

        if ( ! $this->is_enabled() || ! $this->get_recipient() )
            return;

        // woohoo, send the email!
        $this->send( $this->get_recipient(), $this->get_subject(), $this->get_content(), $this->get_headers(), $this->get_attachments() );
    }

    /**
     * get_content_html function.
     *
     * @since 0.1
     * @return string
     */
    public function get_content_html() {
        ob_start();
        woocommerce_get_template( $this->template_html, array(
            'order'         => $this->object,
            'email_heading' => $this->get_heading()
        ) );
        return ob_get_clean();
    }


    /**
     * get_content_plain function.
     *
     * @since 0.1
     * @return string
     */
    public function get_content_plain() {
        ob_start();
        woocommerce_get_template( $this->template_plain, array(
            'order'         => $this->object,
            'email_heading' => $this->get_heading()
        ) );
        return ob_get_clean();
    }

    /**
     * Initialize Settings Form Fields
     *
     * @since 0.1
     */
    public function init_form_fields() {

        $this->form_fields = array(
            'enabled'    => array(
                'title'   => 'Enable/Disable',
                'type'    => 'checkbox',
                'label'   => 'Enable this email notification',
                'default' => 'yes'
            ),
            'recipient'  => array(
                'title'       => 'Recipient(s)',
                'type'        => 'text',
                'description' => sprintf( 'Enter recipients (comma separated) for this email. Defaults to <code>%s</code>.', esc_attr( get_option( 'admin_email' ) ) ),
                'placeholder' => '',
                'default'     => ''
            ),
            'subject'    => array(
                'title'       => 'Subject',
                'type'        => 'text',
                'description' => sprintf( 'This controls the email subject line. Leave blank to use the default subject: <code>%s</code>.', $this->subject ),
                'placeholder' => '',
                'default'     => ''
            ),
            'heading'    => array(
                'title'       => 'Email Heading',
                'type'        => 'text',
                'description' => sprintf( __( 'This controls the main heading contained within the email notification. Leave blank to use the default heading: <code>%s</code>.' ), $this->heading ),
                'placeholder' => '',
                'default'     => ''
            ),
            'email_type' => array(
                'title'       => 'Email type',
                'type'        => 'select',
                'description' => 'Choose which format of email to send.',
                'default'     => 'html',
                'class'       => 'email_type',
                'options'     => array(
                    'plain'     => 'Plain text',
                    'html'      => 'HTML', 'woocommerce',
                    'multipart' => 'Multipart', 'woocommerce',
                )
            )
        );
    }


} // end \WC_Expedited_Order_Email class

这些是我的插件中唯一的两个文件 . 我已经激活它，它在woo commerce email标签中的电子邮件列表中显示为电子邮件 . 遗憾的是，订单状态更新时不会发送电子邮件 .

任何人都可以建议为什么这不起作用？

我得到了一些人的反馈，他说了以下内容

"the actions that you're adding the trigger to are for pending/failed to processing order status changes - http://cld.wthms.co/cZzw You'd want these to be actions that are related to the refunded orders, like: add_action( 'woocommerce_order_status_refunded', array( $this, 'trigger' ) ); (for the exact one look around woocommerce's email classes)"

我正在使用Woocommerce 2.1.12