EnumField::validate

public function validate(array $fields): Result
{
	$result = new Result();

	if (array_key_exists($this->fieldToCheck, $fields) && !in_array($fields[$this->fieldToCheck], $this->possibleValues))
	{
		$result->addError($this->getWrongFieldError($this->fieldToCheck, $this->dto->getName()));
	}

	return $result;
}