www.aleph1.co.uk Git - yaffs-website/blob - vendor/symfony/validator/Constraints/TimeValidator.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Validator\Constraints;
  13
  14 use Symfony\Component\Validator\Context\ExecutionContextInterface;
  15 use Symfony\Component\Validator\Constraint;
  16 use Symfony\Component\Validator\ConstraintValidator;
  17 use Symfony\Component\Validator\Exception\UnexpectedTypeException;
  18
  19 /**
  20  * @author Bernhard Schussek <bschussek@gmail.com>
  21  */
  22 class TimeValidator extends ConstraintValidator
  23 {
  24     const PATTERN = '/^(\d{2}):(\d{2}):(\d{2})$/';
  25
  26     /**
  27      * Checks whether a time is valid.
  28      *
  29      * @param int $hour   The hour
  30      * @param int $minute The minute
  31      * @param int $second The second
  32      *
  33      * @return bool Whether the time is valid
  34      *
  35      * @internal
  36      */
  37     public static function checkTime($hour, $minute, $second)
  38     {
  39         return $hour >= 0 && $hour < 24 && $minute >= 0 && $minute < 60 && $second >= 0 && $second < 60;
  40     }
  41
  42     /**
  43      * {@inheritdoc}
  44      */
  45     public function validate($value, Constraint $constraint)
  46     {
  47         if (!$constraint instanceof Time) {
  48             throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Time');
  49         }
  50
  51         if (null === $value || '' === $value || $value instanceof \DateTime) {
  52             return;
  53         }
  54
  55         if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
  56             throw new UnexpectedTypeException($value, 'string');
  57         }
  58
  59         $value = (string) $value;
  60
  61         if (!preg_match(static::PATTERN, $value, $matches)) {
  62             if ($this->context instanceof ExecutionContextInterface) {
  63                 $this->context->buildViolation($constraint->message)
  64                     ->setParameter('{{ value }}', $this->formatValue($value))
  65                     ->setCode(Time::INVALID_FORMAT_ERROR)
  66                     ->addViolation();
  67             } else {
  68                 $this->buildViolation($constraint->message)
  69                     ->setParameter('{{ value }}', $this->formatValue($value))
  70                     ->setCode(Time::INVALID_FORMAT_ERROR)
  71                     ->addViolation();
  72             }
  73
  74             return;
  75         }
  76
  77         if (!self::checkTime($matches[1], $matches[2], $matches[3])) {
  78             if ($this->context instanceof ExecutionContextInterface) {
  79                 $this->context->buildViolation($constraint->message)
  80                     ->setParameter('{{ value }}', $this->formatValue($value))
  81                     ->setCode(Time::INVALID_TIME_ERROR)
  82                     ->addViolation();
  83             } else {
  84                 $this->buildViolation($constraint->message)
  85                     ->setParameter('{{ value }}', $this->formatValue($value))
  86                     ->setCode(Time::INVALID_TIME_ERROR)
  87                     ->addViolation();
  88             }
  89         }
  90     }
  91 }