Plugin does not work when sending mail from wp-cli script

Hello!

I noticed that this plugin does not working when sending a email from a WP-CLI script. This is the case for any custom wp-cli command that has the wp_mail function in it.

I get the following error:
Error: Call to a member function wp_mail() on null
on line 53 in smtp-mailing-queue/smtp-mailing-queue.php.

I think this has something to do with global variables working slightly different in WP CLI.

I was able to fix it with these modifications:

in smtp-mailing-queue.php:

if (!function_exists('wp_mail') && !isset($_GET['smqProcessQueue'])) {
    function wp_mail($to, $subject, $message, $headers = '', $attachments = array())
    {
        $originalPluggeable = OriginalPluggeable::get_instance();
        $smtpMailingQueue = SMTPMailingQueue::get_instance(__FILE__, $originalPluggeable);
        return $smtpMailingQueue->wp_mail($to, $subject, $message, $headers, $attachments);
    }
}

In the OriginalPluggeable and SMTPMailingQueue classes I added this field and get_instance method:

private static $instance = null;

public static function get_instance($pluginFile = null, OriginalPluggeable $originalPluggeable) {
    if ( null == self::$instance ) {
        self::$instance = new self($pluginFile, $originalPluggeable);
    }
    return self::$instance;
}

public static function get_instance() {
    if ( null == self::$instance ) {
        self::$instance = new self();
    }
    return self::$instance;
}

I hope you can fix this problem using the above solution or another solution.

• This topic was modified 2 years, 9 months ago by Christiaan van Luik. Reason: Remove nonfunctional markdown