protected function setCustomValidity($key, $check = [])
    {
        $message = NULL;
        
        if( is_scalar($key) )
        {
            $message = $this->getValidationLangValue($key, $check);
        }
        else foreach( $key as $k => $c )
        {
            $message .= $this->getValidationLangValue($k, $c) . ' ';
        }

        return rtrim($message);
    }