WooCommerce 不应该在订单是订阅父时发送订单完成邮件

Question

I try to unsent the WooCommerce default order complete mail when a customer buys a subscription. WooCommerce creates a parent order for that subscription. When we close that parent order, the customer will get the order completed mail. Then we try no block but only on parent order for subscriptions.

I found this answer but it's for renewal completed mails.

There is an info order_type which should store the info if it is a subscription parent order or not, how can that value be accessed?

There is maybe also a way to check via wcs_order_contains_subscription() if it is a parent subscription order. ( https://docs.woocommerce.com/document/subscriptions/develop/functions/order-cart-functions/ )

Something like this: wcs_order_contains_subscription( $order, $order_type )

Update: With the new information this is the current status:

// Conditionally remove action to send order completed email for subscription parent order

function unhook_order_complete_email_subscription_parent($email_class) {

    // Check whether to send the parent order completed email or not
    $send_parent_completed_email = order_type(parent);

    if (!$send_parent_completed_email) {

        // Remove action to prevent email from being sent
        remove_action(
            "woocommerce_order_status_completed_notification",
            array(
                $email_class->emails["WC_Email_Customer_Completed_Order"],
                "trigger"
            )
        );
    }
}

add_action("woocommerce_order_status_changed", "unhook_order_complete_email_subscription_parent");

Answer 1

There is no function like order_type() . This should fix your problem:

// Conditionally remove action to send order completed email for subscription parent order

function unhook_order_complete_email_subscription_parent($order_id) {
    $email_class = wc()->mailer()->get_emails();
    
    // Check whether to send the parent order completed email or not
    $order = wc_get_order($order_id);
    if ($order && !$order->get_parent_id()) {
        // Remove action to prevent email from being sent
        remove_action(
            "woocommerce_order_status_completed_notification",
            array(
                $email_class->emails["WC_Email_Customer_Completed_Order"],
                "trigger"
            )
        );
    }
}

add_action("woocommerce_order_status_changed", "unhook_order_complete_email_subscription_parent");

EDIT:

This is a better approach that works. get_parent_id() will return 0 if an order is a parent, else it will return the parent_id if it is a child.

function enable_email($order) {
    // We have to restore the configuration of what we disabled after we are done with our hack
    if ($order->get_parent_id() != 0 && ($status = get_transient( "tmp_completed_order_email" )) !== false) {
        wc()->mailer()->emails['WC_Email_Customer_Completed_Order']->enabled = $status;        
    }
}

function disable_email($order)
{
    if ($order->get_parent_id() != 0) { // It is a child
        // Store the current configuration in a temporary place.
        $current_status = wc()->mailer()->emails['WC_Email_Customer_Completed_Order']->enabled;

        // Everything should be done in 10 seconds. Lets keep the data till then
        set_transient( 'tmp_completed_order_email', $current_status, 10 );

        // Disabled completed order email
        wc()->mailer()->emails['WC_Email_Customer_Completed_Order']->enabled = 'no';
    }
}
add_action("woocommerce_before_order_object_save", "disable_email");
add_action("woocommerce_after_order_object_save", "enable_email");