ORM::get_last_query PHP 메소드

    public static function get_last_query($connection_name = null)
    {
        if ($connection_name === null) {
            return self::$_last_query;
        }
        if (!isset(self::$_query_log[$connection_name])) {
            return '';
        }
        return end(self::$_query_log[$connection_name]);
    }

 public function find($tag, $key = "tags")
 {
     // search pages table with pages that has a certain tag
     $r = \ORM::for_table('cms_page')->distinct()->select('cms_page.*')->join('cms_page_meta', array('cms_page.id', '=', 'cms_page_meta.page_id'))->join('cms_page_meta_translation', array('cms_page_meta.id', '=', 'cms_page_meta_translation.meta_id'))->where_equal('cms_page_meta.key', $key)->where_raw("FIND_IN_SET({$tag}, cms_page_meta_translation.value)")->find_many();
     print_r($r);
     print_r(\ORM::get_last_query());
 }