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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Constraints;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
/**
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class DateValidator extends ConstraintValidator
{
const PATTERN = '/^(\d{4})-(\d{2})-(\d{2})$/';
/**
* Checks whether a date is valid.
*
* @param int $year The year
* @param int $month The month
* @param int $day The day
*
* @return bool Whether the date is valid
*
* @internal
*/
public static function checkDate($year, $month, $day)
{
return checkdate($month, $day, $year);
}
/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Date) {
throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Date');
}
if (null === $value || '' === $value) {
return;
}
if ($value instanceof \DateTimeInterface) {
@trigger_error(sprintf('Validating a \\DateTimeInterface with "%s" is deprecated since version 4.2. Use "%s" instead or remove the constraint if the underlying model is already type hinted to \\DateTimeInterface.', Date::class, Type::class), E_USER_DEPRECATED);
return;
}
if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
throw new UnexpectedValueException($value, 'string');
}
$value = (string) $value;
if (!preg_match(static::PATTERN, $value, $matches)) {
$this->context->buildViolation($constraint->message)
->setParameter('{{ value }}', $this->formatValue($value))
->setCode(Date::INVALID_FORMAT_ERROR)
->addViolation();
return;
}
if (!self::checkDate($matches[1], $matches[2], $matches[3])) {
$this->context->buildViolation($constraint->message)
->setParameter('{{ value }}', $this->formatValue($value))
->setCode(Date::INVALID_DATE_ERROR)
->addViolation();
}
}
}
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