我正在尝试清理代码并在类文件中分离它们。

我有一段代码，当我将其添加到functions.php 文件：

if ( ! wp_next_scheduled( \'trash_week_old_events\' ) ) {
    wp_schedule_event( time(), \'daily\' );
}

add_action( \'trash_week_old_events\', \'trash_events\' );

function trash_events() {
   $args = array(
       \'post_type\' => \'event\',
       \'post_status\' => \'publish\',
       \'date_query\' => array(
           array(
               \'before\' => \'1 week ago\'
           )
       )
   ); 

   $query = new WP_Query( $args );
   $posts = $query->get_posts();

   foreach( $posts as $post ) { 
       $updated_post_info = array(
           \'ID\'           => $post->ID,
           \'post_status\'  => \'trash\'
       );

       wp_update_post( $updated_post_info );
   }

 }  

但是，当我尝试将其转换为类时，当我尝试在管理区域中运行CRON作业时，它不起作用。

class EventsWPCron {

    public function __construct() {

        if ( ! wp_next_scheduled( \'trash_week_old_events\' ) ) {
            wp_schedule_event( time(), \'daily\' );
        }

        add_action( \'trash_week_old_events\', array( $this, \'update_events\' ) ); 

    }

    private function update_events() {
        $args = array(
            \'post_type\' => \'event\',
            \'post_status\' => \'publish\',
            \'date_query\' => array(
                array(
                    \'before\' => \'1 week ago\'
                )
            )
        ); 

        $query = new WP_Query( $args );
        $posts = $query->get_posts();

        foreach( $posts as $post ) { 
            $updated_post_info = array(
                \'ID\'           => $post->ID,
                \'post_status\'  => \'trash\'
            );

            wp_update_post( $updated_post_info );
        }


    }     


}

new EventsWPCron();

我在类实现中是否缺少一些东西，为什么它不起作用？我试着四处搜索，但找不到任何明确的参考资料。