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<?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 normalized time and a localized time string/array.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Florian Eckerstorfer <florian@eckerstorfer.org>
*/
class DateTimeToArrayTransformer extends BaseDateTimeTransformer
{
private $pad;
private $fields;
/**
* @param string $inputTimezone The input timezone
* @param string $outputTimezone The output timezone
* @param array $fields The date fields
* @param bool $pad Whether to use padding
*/
public function __construct(string $inputTimezone = null, string $outputTimezone = null, array $fields = null, bool $pad = false)
{
parent::__construct($inputTimezone, $outputTimezone);
if (null === $fields) {
$fields = ['year', 'month', 'day', 'hour', 'minute', 'second'];
}
$this->fields = $fields;
$this->pad = $pad;
}
/**
* Transforms a normalized date into a localized date.
*
* @param \DateTimeInterface $dateTime A DateTimeInterface object
*
* @return array Localized date
*
* @throws TransformationFailedException If the given value is not a \DateTimeInterface
*/
public function transform($dateTime)
{
if (null === $dateTime) {
return array_intersect_key([
'year' => '',
'month' => '',
'day' => '',
'hour' => '',
'minute' => '',
'second' => '',
], array_flip($this->fields));
}
if (!$dateTime instanceof \DateTimeInterface) {
throw new TransformationFailedException('Expected a \DateTimeInterface.');
}
if ($this->inputTimezone !== $this->outputTimezone) {
if (!$dateTime instanceof \DateTimeImmutable) {
$dateTime = clone $dateTime;
}
$dateTime = $dateTime->setTimezone(new \DateTimeZone($this->outputTimezone));
}
$result = array_intersect_key([
'year' => $dateTime->format('Y'),
'month' => $dateTime->format('m'),
'day' => $dateTime->format('d'),
'hour' => $dateTime->format('H'),
'minute' => $dateTime->format('i'),
'second' => $dateTime->format('s'),
], array_flip($this->fields));
if (!$this->pad) {
foreach ($result as &$entry) {
// remove leading zeros
$entry = (string) (int) $entry;
}
// unset reference to keep scope clear
unset($entry);
}
return $result;
}
/**
* Transforms a localized date into a normalized date.
*
* @param array $value Localized date
*
* @return \DateTime Normalized date
*
* @throws TransformationFailedException If the given value is not an array,
* if the value could not be transformed
*/
public function reverseTransform($value)
{
if (null === $value) {
return;
}
if (!\is_array($value)) {
throw new TransformationFailedException('Expected an array.');
}
if ('' === implode('', $value)) {
return;
}
$emptyFields = [];
foreach ($this->fields as $field) {
if (!isset($value[$field])) {
$emptyFields[] = $field;
}
}
if (\count($emptyFields) > 0) {
throw new TransformationFailedException(sprintf('The fields "%s" should not be empty', implode('", "', $emptyFields)));
}
if (isset($value['month']) && !ctype_digit((string) $value['month'])) {
throw new TransformationFailedException('This month is invalid');
}
if (isset($value['day']) && !ctype_digit((string) $value['day'])) {
throw new TransformationFailedException('This day is invalid');
}
if (isset($value['year']) && !ctype_digit((string) $value['year'])) {
throw new TransformationFailedException('This year is invalid');
}
if (!empty($value['month']) && !empty($value['day']) && !empty($value['year']) && false === checkdate($value['month'], $value['day'], $value['year'])) {
throw new TransformationFailedException('This is an invalid date');
}
if (isset($value['hour']) && !ctype_digit((string) $value['hour'])) {
throw new TransformationFailedException('This hour is invalid');
}
if (isset($value['minute']) && !ctype_digit((string) $value['minute'])) {
throw new TransformationFailedException('This minute is invalid');
}
if (isset($value['second']) && !ctype_digit((string) $value['second'])) {
throw new TransformationFailedException('This second is invalid');
}
try {
$dateTime = new \DateTime(sprintf(
'%s-%s-%s %s:%s:%s',
empty($value['year']) ? '1970' : $value['year'],
empty($value['month']) ? '1' : $value['month'],
empty($value['day']) ? '1' : $value['day'],
empty($value['hour']) ? '0' : $value['hour'],
empty($value['minute']) ? '0' : $value['minute'],
empty($value['second']) ? '0' : $value['second']
),
new \DateTimeZone($this->outputTimezone)
);
if ($this->inputTimezone !== $this->outputTimezone) {
$dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
}
} catch (\Exception $e) {
throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
}
return $dateTime;
}
}
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