Admin_Apple_Notice::error PHP Method

    public static function error($message, $user_id = null)
    {
        self::message($message, 'error', $user_id);
    }

 /**
  * Handle performing an asynchronous push request.
  *
  * @access public
  * @param int $post_id
  * @param int $user_id
  * @since 1.0.0
  */
 public function async_push($post_id, $user_id)
 {
     // This hook could be used for an ini_set to increase max execution time
     // for asynchronous publishing to handle large push requests.
     // Since some hosts wouldn't support it, the code isn't added directly here.
     //
     // On WordPress VIP this isn't necessary since the plugin
     // will automatically use the jobs system which can handle requests up to 12 hours.
     do_action('apple_news_before_async_push');
     // Ensure that the job can't be picked up twice
     $in_progress = get_post_meta($post_id, 'apple_news_api_async_in_progress', true);
     if (!empty($in_progress)) {
         return;
     }
     update_post_meta($post_id, 'apple_news_api_async_in_progress', time());
     // Ensure that the post is still published
     $post = get_post($post_id);
     if ('publish' != $post->post_status) {
         Admin_Apple_Notice::error(sprintf(__('Article %s is no longer published and cannot be pushed to Apple News.', 'apple-news'), $post->post_title), $user_id);
         return;
     }
     $action = new Apple_Actions\Index\Push($this->settings, $post_id);
     try {
         $action->perform(true, $user_id);
         Admin_Apple_Notice::success(sprintf(__('Article %s has been pushed successfully to Apple News!', 'apple-news'), $post->post_title), $user_id);
     } catch (Apple_Actions\Action_Exception $e) {
         Admin_Apple_Notice::error($e->getMessage(), $user_id);
     }
     do_action('apple_news_after_async_push');
 }