76 lines
2.1 KiB
PHP
76 lines
2.1 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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use Symfony\Component\Validator\Exception\UnexpectedValueException;
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/**
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class DateValidator extends ConstraintValidator
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{
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public const PATTERN = '/^(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})$/';
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/**
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* Checks whether a date is valid.
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*
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* @internal
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*/
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public static function checkDate(int $year, int $month, int $day): bool
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{
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return checkdate($month, $day, $year);
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}
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/**
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* {@inheritdoc}
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*/
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public function validate($value, Constraint $constraint)
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{
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if (!$constraint instanceof Date) {
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throw new UnexpectedTypeException($constraint, Date::class);
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}
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if (null === $value || '' === $value) {
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return;
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}
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if (!is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
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throw new UnexpectedValueException($value, 'string');
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}
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$value = (string) $value;
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if (!preg_match(static::PATTERN, $value, $matches)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Date::INVALID_FORMAT_ERROR)
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->addViolation();
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return;
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}
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if (!self::checkDate(
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$matches['year'] ?? $matches[1],
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$matches['month'] ?? $matches[2],
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$matches['day'] ?? $matches[3]
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)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Date::INVALID_DATE_ERROR)
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->addViolation();
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}
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}
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}
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