Current File : //opt/alt/php53/usr/share/pear/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToTimestampTransformer.php
<?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;
}
}