解决了它，使用pre_get_posts 过滤器和WP_Query->set() 方法

function foo_filter_orders($query) {
    global $pagenow;
    $qv = &$query->query_vars;
    
    $currentUserRoles = wp_get_current_user()->roles;
    
    if (in_array(\'shop_manager\', $currentUserRoles)) {
        if ( $pagenow == \'edit.php\' && 
                isset($qv[\'post_type\']) && $qv[\'post_type\'] == \'shop_order\' ) {            
            $query->set(\'meta_key\', \'handle_by\');
            $query->set(\'meta_value\', \'shopmanager1\');
        }
    }
    
    return $query;
}
add_filter(\'pre_get_posts\', \'foo_filter_orders\');