如何覆盖WooCommerce电子邮件类中的现有功能以更改主题中电子邮件的收件人？
负责发送电子邮件的类需要切换收件人是WC_Email_Cancelled_Order。我希望它不是发送到指定数量的管理员电子邮件，而是将订单已取消的电子邮件发送给客户。
WC_Email_Cancelled_Order我认为在第 42 行的构造函数中它设置了接收者。
我是否应该使用第 35 行和第 36 行上定义的操作来执行此操作？如果是这样，我将如何去做？
编辑：
我最终做了以下事情，以实现我想要做的事情
add_action( 'woocommerce_order_status_pending_to_cancelled_notification', 'hg_override_cancelled_email_recipient' );
add_action( 'woocommerce_order_status_on-hold_to_cancelled_notification', 'hg_override_cancelled_email_recipient' );
function hg_override_cancelled_email_recipient( $order_id ) {
$cancelledEmail = new WC_Email_Cancelled_Order();
if ( $order_id ) {
$cancelledEmail->object = wc_get_order( $order_id );
$cancelledEmail->find['order-date'] = '{order_date}';
$cancelledEmail->find['order-number'] = '{order_number}';
$cancelledEmail->replace['order-date'] = date_i18n( wc_date_format(), strtotime( $cancelledEmail->object->order_date ) );
$cancelledEmail->replace['order-number'] = $cancelledEmail->object->get_order_number();
$cancelledEmail->recipient = $cancelledEmail->object->billing_email;
}
if ( ! $cancelledEmail->is_enabled() || ! $cancelledEmail->get_recipient() ) {
return;
}
$cancelledEmail->send(
$cancelledEmail->get_recipient(),
$cancelledEmail->get_subject(),
$cancelledEmail->get_content(),
$cancelledEmail->get_headers(),
$cancelledEmail->get_attachments()
);
}
您可以通过woocommerce_email_recipient_$email_id过滤器过滤收件人，并提供以逗号分隔的电子邮件列表。
function so_35900307_email_recipient( $recipient, $order ){
return $order->billing_email;
}
add_filter( 'woocommerce_email_recipient_cancelled_order', 'so_35900307_email_recipient', 10, 2 );
编辑
随着WooCommerce 2.7的出现，$order->billing_email（实际上，所有订单属性）已被弃用，取而代之的是get_something()样式方法。因此，为了修改我的答案以前后兼容性，我添加了一个method_exists()测试：
function so_35900307_email_recipient( $recipient, $order ){
if( method_exists ( $order , 'get_billing_email' ) ){
$recipient = $order->get_billing_email();
} else {
$recipient = $order->billing_email;
}
return $recipient;
}
add_filter( 'woocommerce_email_recipient_cancelled_order', 'so_35900307_email_recipient', 10, 2 );