Respect\Validation\Exceptions\ValidationException::guessId PHP Method

    public function guessId()
    {
        if (!empty($this->id) && $this->id != 'validation') {
            return $this->id;
        }
        $pieces = explode('\\', get_called_class());
        $exceptionClassShortName = end($pieces);
        $ruleClassShortName = str_replace('Exception', '', $exceptionClassShortName);
        $ruleName = lcfirst($ruleClassShortName);
        return $ruleName;
    }

 /**
  * @param string              $path
  * @param ValidationException $exception
  *
  * @return ValidationException
  */
 private function getExceptionForPath($path, ValidationException $exception)
 {
     if ($path === $exception->guessId()) {
         return $exception;
     }
     if (!$exception instanceof self) {
         return $exception;
     }
     foreach ($exception as $subException) {
         return $subException;
     }
     return $exception;
 }