vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToTimestampTransformer.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\Form\Extension\Core\DataTransformer;
  13
  14 use Symfony\Component\Form\Exception\TransformationFailedException;
  15
  16 /**
  17  * Transforms between a timestamp and a DateTime object
  18  *
  19  * @author Bernhard Schussek <bschussek@gmail.com>
  20  * @author Florian Eckerstorfer <florian@eckerstorfer.org>
  21  */
  22 class DateTimeToTimestampTransformer extends BaseDateTimeTransformer
  23 {
  24     /**
  25      * Transforms a DateTime object into a timestamp in the configured timezone.
  26      *
  27      * @param \DateTime $value A \DateTime object
  28      *
  29      * @return integer A timestamp
  30      *
  31      * @throws TransformationFailedException If the given value is not an instance
  32      *                                       of \DateTime or if the output
  33      *                                       timezone is not supported.
  34      */
  35     public function transform($value)
  36     {
  37         if (null === $value) {
  38             return null;
  39         }
  40
  41         if (!$value instanceof \DateTime) {
  42             throw new TransformationFailedException('Expected a \DateTime.');
  43         }
  44
  45         $value = clone $value;
  46         try {
  47             $value->setTimezone(new \DateTimeZone($this->outputTimezone));
  48         } catch (\Exception $e) {
  49             throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
  50         }
  51
  52         return (int) $value->format('U');
  53     }
  54
  55     /**
  56      * Transforms a timestamp in the configured timezone into a DateTime object
  57      *
  58      * @param string $value A timestamp
  59      *
  60      * @return \DateTime A \DateTime object
  61      *
  62      * @throws TransformationFailedException If the given value is not a timestamp
  63      *                                       or if the given timestamp is invalid.
  64      */
  65     public function reverseTransform($value)
  66     {
  67         if (null === $value) {
  68             return null;
  69         }
  70
  71         if (!is_numeric($value)) {
  72             throw new TransformationFailedException('Expected a numeric.');
  73         }
  74
  75         try {
  76             $dateTime = new \DateTime();
  77             $dateTime->setTimezone(new \DateTimeZone($this->outputTimezone));
  78             $dateTime->setTimestamp($value);
  79
  80             if ($this->inputTimezone !== $this->outputTimezone) {
  81                 $dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
  82             }
  83         } catch (\Exception $e) {
  84             throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
  85         }
  86
  87         return $dateTime;
  88     }
  89 }