<?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\Form\Extension\Core\DataTransformer; use Symfony\Component\Form\Exception\TransformationFailedException; /** * Transforms between a timestamp and a DateTime object * * @author Bernhard Schussek <bschussek@gmail.com> * @author Florian Eckerstorfer <florian@eckerstorfer.org> */ class DateTimeToTimestampTransformer extends BaseDateTimeTransformer { /** * Transforms a DateTime object into a timestamp in the configured timezone. * * @param \DateTime $value A \DateTime object * * @return integer A timestamp * * @throws TransformationFailedException If the given value is not an instance * of \DateTime or if the output * timezone is not supported. */ public function transform($value) { if (null === $value) { return null; } if (!$value instanceof \DateTime) { throw new TransformationFailedException('Expected a \DateTime.'); } $value = clone $value; try { $value->setTimezone(new \DateTimeZone($this->outputTimezone)); } catch (\Exception $e) { throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e); } return (int) $value->format('U'); } /** * Transforms a timestamp in the configured timezone into a DateTime object * * @param string $value A timestamp * * @return \DateTime A \DateTime object * * @throws TransformationFailedException If the given value is not a timestamp * or if the given timestamp is invalid. */ public function reverseTransform($value) { if (null === $value) { return null; } if (!is_numeric($value)) { throw new TransformationFailedException('Expected a numeric.'); } try { $dateTime = new \DateTime(); $dateTime->setTimezone(new \DateTimeZone($this->outputTimezone)); $dateTime->setTimestamp($value); if ($this->inputTimezone !== $this->outputTimezone) { $dateTime->setTimezone(new \DateTimeZone($this->inputTimezone)); } } catch (\Exception $e) { throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e); } return $dateTime; } }