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[Form] Fix DateTimeType html5 input format. #27254

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Original file line number Diff line number Diff line change
@@ -0,0 +1,99 @@
<?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;

/**
* @author Franz Wilding <franz.wilding@me.com>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class DateTimeToHtml5DateTimeLocalTransformer extends BaseDateTimeTransformer
{
/**
* Transforms a normalized date into a localized date without trailing timezone.
*
* According to the HTML standard, the input string of a datetime-local
* input is a RFC3339 date followed by 'T', followed by a RFC3339 time.
* http://w3c.github.io/html-reference/datatypes.html#form.data.datetime-local
*
* @param \DateTime|\DateTimeInterface $dateTime A DateTime object
*
* @return string The formatted date
*
* @throws TransformationFailedException If the given value is not an
* instance of \DateTime or \DateTimeInterface
*/
public function transform($dateTime)
{
if (null === $dateTime) {
return '';
}

if (!$dateTime instanceof \DateTime && !$dateTime instanceof \DateTimeInterface) {
throw new TransformationFailedException('Expected a \DateTime or \DateTimeInterface.');
}

if ($this->inputTimezone !== $this->outputTimezone) {
if (!$dateTime instanceof \DateTimeImmutable) {
$dateTime = clone $dateTime;
}

$dateTime = $dateTime->setTimezone(new \DateTimeZone($this->outputTimezone));
}

return preg_replace('/\+00:00$/', '', $dateTime->format('c'));
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@mcfedr mcfedr Jul 5, 2018

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Would it not make more sense to do ->format(DateTimeType::HTML5_FORMAT) rather than preg_replaceing format(c)?

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Of course not, because wrong time of format, but maybe having a different const here with "Y-m-d\TH:i:s"

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This was taken from

return preg_replace('/\+00:00$/', 'Z', $dateTime->format('c'));
. I just removed the 'Z' so it becomes a valid html5 datetime-local format. The idea was to remove DateTimeToRfc3339Transformer in a second refactoring step

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I see that, but seems like it would be more efficient, and obvious what is happening, to pass to format the format you actually want, rather than the wrong format, and editing it with regex.

}

/**
* Transforms a formatted datetime-local string into a normalized date.
*
* @param string $dateTimeLocal Formatted string
*
* @return \DateTime Normalized date
*
* @throws TransformationFailedException If the given value is not a string,
* if the value could not be transformed
*/
public function reverseTransform($dateTimeLocal)
{
if (!\is_string($dateTimeLocal)) {
throw new TransformationFailedException('Expected a string.');
}

if ('' === $dateTimeLocal) {
return;
}

if ('Z' !== substr($dateTimeLocal, -1)) {
$dateTimeLocal .= 'Z';
}

try {
$dateTime = new \DateTime($dateTimeLocal);
} catch (\Exception $e) {
throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
}

if ($this->inputTimezone !== $dateTime->getTimezone()->getName()) {
$dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
}

if (preg_match('/(\d{4})-(\d{2})-(\d{2})/', $dateTimeLocal, $m)) {
if (!checkdate($m[2], $m[3], $m[1])) {
throw new TransformationFailedException(sprintf('The date "%s-%s-%s" is not a valid date.', $m[1], $m[2], $m[3]));
}
}

return $dateTime;
}
}
21 changes: 4 additions & 17 deletions 21 src/Symfony/Component/Form/Extension/Core/Type/DateTimeType.php
Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,8 @@
use Symfony\Component\Form\Extension\Core\DataTransformer\ArrayToPartsTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DataTransformerChain;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToArrayTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToHTML5DateTimeLocalTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToLocalizedStringTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToRfc3339Transformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToTimestampTransformer;
use Symfony\Component\Form\FormBuilderInterface;
Expand All @@ -33,21 +33,8 @@ class DateTimeType extends AbstractType
const DEFAULT_TIME_FORMAT = \IntlDateFormatter::MEDIUM;

/**
* This is not quite the HTML5 format yet, because ICU lacks the
* capability of parsing and generating RFC 3339 dates.
*
* For more information see:
*
* http://userguide.icu-project.org/formatparse/datetime#TOC-Date-Time-Format-Syntax
* https://www.w3.org/TR/html5/sec-forms.html#local-date-and-time-state-typedatetimelocal
* http://tools.ietf.org/html/rfc3339
*
* An ICU ticket was created:
* http://icu-project.org/trac/ticket/9421
*
* It was supposedly fixed, but is not available in all PHP installations
* yet. To temporarily circumvent this issue, DateTimeToRfc3339Transformer
* is used when the format matches this constant.
* The HTML5 datetime-local format as defined in
* http://w3c.github.io/html-reference/datatypes.html#form.data.datetime-local.
*/
const HTML5_FORMAT = "yyyy-MM-dd'T'HH:mm:ss";

Expand Down Expand Up @@ -88,7 +75,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)

if ('single_text' === $options['widget']) {
if (self::HTML5_FORMAT === $pattern) {
$builder->addViewTransformer(new DateTimeToRfc3339Transformer(
$builder->addViewTransformer(new DateTimeToHtml5DateTimeLocalTransformer(
$options['model_timezone'],
$options['view_timezone']
));
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -1603,7 +1603,7 @@ public function testDateTimeWithWidgetSingleText()
[@type="datetime-local"]
[@name="name"]
[@class="my&class form-control"]
[@value="2011-02-03T04:05:06Z"]
[@value="2011-02-03T04:05:06"]
'
);
}
Expand All @@ -1624,7 +1624,7 @@ public function testDateTimeWithWidgetSingleTextIgnoreDateAndTimeWidgets()
[@type="datetime-local"]
[@name="name"]
[@class="my&class form-control"]
[@value="2011-02-03T04:05:06Z"]
[@value="2011-02-03T04:05:06"]
'
);
}
Expand Down
4 changes: 2 additions & 2 deletions 4 src/Symfony/Component/Form/Tests/AbstractLayoutTest.php
Original file line number Diff line number Diff line change
Expand Up @@ -1502,7 +1502,7 @@ public function testDateTimeWithWidgetSingleText()
'/input
[@type="datetime-local"]
[@name="name"]
[@value="2011-02-03T04:05:06Z"]
[@value="2011-02-03T04:05:06"]
'
);
}
Expand All @@ -1522,7 +1522,7 @@ public function testDateTimeWithWidgetSingleTextIgnoreDateAndTimeWidgets()
'/input
[@type="datetime-local"]
[@name="name"]
[@value="2011-02-03T04:05:06Z"]
[@value="2011-02-03T04:05:06"]
'
);
}
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,151 @@
<?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\Tests\Extension\Core\DataTransformer;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToHtml5DateTimeLocalTransformer;

class DateTimeToHtml5DateTimeLocaleTransformerTest extends TestCase
{
protected $dateTime;
protected $dateTimeWithoutSeconds;

protected function setUp()
{
parent::setUp();

$this->dateTime = new \DateTime('2010-02-03 04:05:06 UTC');
$this->dateTimeWithoutSeconds = new \DateTime('2010-02-03 04:05:00 UTC');
}

protected function tearDown()
{
$this->dateTime = null;
$this->dateTimeWithoutSeconds = null;
}

public static function assertEquals($expected, $actual, $message = '', $delta = 0, $maxDepth = 10, $canonicalize = false, $ignoreCase = false)
{
if ($expected instanceof \DateTime && $actual instanceof \DateTime) {
$expected = $expected->format('c');
$actual = $actual->format('c');
}

parent::assertEquals($expected, $actual, $message, $delta, $maxDepth, $canonicalize, $ignoreCase);
}

public function allProvider()
{
return array(
array('UTC', 'UTC', '2010-02-03 04:05:06 UTC', '2010-02-03T04:05:06'),
array('UTC', 'UTC', null, ''),
array('America/New_York', 'Asia/Hong_Kong', '2010-02-03 04:05:06 America/New_York', '2010-02-03T17:05:06+08:00'),
array('America/New_York', 'Asia/Hong_Kong', null, ''),
array('UTC', 'Asia/Hong_Kong', '2010-02-03 04:05:06 UTC', '2010-02-03T12:05:06+08:00'),
array('America/New_York', 'UTC', '2010-02-03 04:05:06 America/New_York', '2010-02-03T09:05:06'),
);
}

public function transformProvider()
{
return $this->allProvider();
}

public function reverseTransformProvider()
{
return array(
// format without seconds, as appears in some browsers
array('UTC', 'UTC', '2010-02-03 04:05:06 UTC', '2010-02-03T04:05:06'),
array('UTC', 'UTC', null, ''),
array('America/New_York', 'Asia/Hong_Kong', '2010-02-03 04:05:06 America/New_York', '2010-02-03T17:05:06+08:00'),
array('America/New_York', 'Asia/Hong_Kong', null, ''),
array('UTC', 'Asia/Hong_Kong', '2010-02-03 04:05:06 UTC', '2010-02-03T12:05:06+08:00'),
array('America/New_York', 'UTC', '2010-02-03 04:05:06 America/New_York', '2010-02-03T09:05:06'),
array('UTC', 'UTC', '2010-02-03 04:05:00 UTC', '2010-02-03T04:05'),
array('America/New_York', 'Asia/Hong_Kong', '2010-02-03 04:05:00 America/New_York', '2010-02-03T17:05+08:00'),
array('Europe/Amsterdam', 'Europe/Amsterdam', '2013-08-21 10:30:00 Europe/Amsterdam', '2013-08-21T08:30:00'),
);
}

/**
* @dataProvider transformProvider
*/
public function testTransform($fromTz, $toTz, $from, $to)
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer($fromTz, $toTz);

$this->assertSame($to, $transformer->transform(null !== $from ? new \DateTime($from) : null));
}

/**
* @dataProvider transformProvider
* @requires PHP 5.5
*/
public function testTransformDateTimeImmutable($fromTz, $toTz, $from, $to)
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer($fromTz, $toTz);

$this->assertSame($to, $transformer->transform(null !== $from ? new \DateTimeImmutable($from) : null));
}

/**
* @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
*/
public function testTransformRequiresValidDateTime()
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer();
$transformer->transform('2010-01-01');
}

/**
* @dataProvider reverseTransformProvider
*/
public function testReverseTransform($toTz, $fromTz, $to, $from)
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer($toTz, $fromTz);

if (null !== $to) {
$this->assertEquals(new \DateTime($to), $transformer->reverseTransform($from));
} else {
$this->assertNull($transformer->reverseTransform($from));
}
}

/**
* @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
*/
public function testReverseTransformRequiresString()
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer();
$transformer->reverseTransform(12345);
}

/**
* @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
*/
public function testReverseTransformWithNonExistingDate()
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer('UTC', 'UTC');

$transformer->reverseTransform('2010-04-31T04:05Z');
}

/**
* @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
*/
public function testReverseTransformExpectsValidDateString()
{
$transformer = new DateTimeToHtml5DateTimeLocalTransformer('UTC', 'UTC');

$transformer->reverseTransform('2010-2010-2010');
}
}
Original file line number Diff line number Diff line change
Expand Up @@ -238,10 +238,10 @@ public function testSubmitStringSingleText()
'widget' => 'single_text',
));

$form->submit('2010-06-02T03:04:00Z');
$form->submit('2010-06-02T03:04:00');

$this->assertEquals('2010-06-02 03:04:00', $form->getData());
$this->assertEquals('2010-06-02T03:04:00Z', $form->getViewData());
$this->assertEquals('2010-06-02T03:04:00', $form->getViewData());
}

public function testSubmitStringSingleTextWithSeconds()
Expand All @@ -254,10 +254,10 @@ public function testSubmitStringSingleTextWithSeconds()
'with_seconds' => true,
));

$form->submit('2010-06-02T03:04:05Z');
$form->submit('2010-06-02T03:04:05');

$this->assertEquals('2010-06-02 03:04:05', $form->getData());
$this->assertEquals('2010-06-02T03:04:05Z', $form->getViewData());
$this->assertEquals('2010-06-02T03:04:05', $form->getViewData());
}

public function testSubmitDifferentPattern()
Expand Down
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