/**
  * Display database error
  *
  * @param  resource $result result, returned by database server
  * @param  string   $query  SQL query, passed to server
  * @return mixed    false if no error, dies with error message otherwise
  */
 private static function _error($result, $query)
 {
     if (!empty($result) || self::$_db->errorCode() == 0) {
         // it's ok
     } else {
         $error = array('message' => self::$_db->error() . ' <b>(' . self::$_db->errorCode() . ')</b>', 'query' => $query);
         if (Registry::get('runtime.database.skip_errors') == true) {
             Registry::push('runtime.database.errors', $error);
         } else {
             // Log database errors
             fn_log_event('database', 'error', array('error' => $error, 'backtrace' => debug_backtrace()));
             throw new DatabaseException($error['message'] . "<p>{$error['query']}</p>");
         }
     }
     return false;
 }