symfony · vudaltsov · Dec 22, 2017 · Dec 22, 2017 · Jan 8, 2018 · Jan 13, 2018
diff --git a/src/Symfony/Component/Form/CHANGELOG.md b/src/Symfony/Component/Form/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+4.1.0
+-----
+
+ * added `input=datetime_immutable` to DateType, TimeType, DateTimeType
+
 4.0.0
 -----
 

diff --git a/.../Component/Form/Extension/Core/DataTransformer/DateTimeImmutableToDateTimeTransformer.php b/.../Component/Form/Extension/Core/DataTransformer/DateTimeImmutableToDateTimeTransformer.php
@@ -0,0 +1,67 @@
+<?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\DataTransformerInterface;
+use Symfony\Component\Form\Exception\TransformationFailedException;
+
+/**
+ * Transforms between a DateTimeImmutable object and a DateTime object.
+ *
+ * @author Valentin Udaltsov <udaltsov.valentin@gmail.com>
+ */
+final class DateTimeImmutableToDateTimeTransformer implements DataTransformerInterface
+{
+    /**
+     * Transforms a DateTimeImmutable into a DateTime object.
+     *
+     * @param \DateTimeImmutable|null $value A DateTimeImmutable object
+     *
+     * @return \DateTime|null A \DateTime object
+     *
+     * @throws TransformationFailedException If the given value is not a \DateTimeImmutable
+     */
+    public function transform($value)
+    {
+        if (null === $value) {
+            return null;
+        }
+
+        if (!$value instanceof \DateTimeImmutable) {
+            throw new TransformationFailedException('Expected a \DateTimeImmutable.');
+        }
+
+        return \DateTime::createFromFormat(\DateTime::RFC3339, $value->format(\DateTime::RFC3339));
+    }
+
+    /**
+     * Transforms a DateTime object into a DateTimeImmutable object.
+     *
+     * @param \DateTime|null $value A DateTime object
+     *
+     * @return \DateTimeImmutable|null A DateTimeImmutable object
+     *
+     * @throws TransformationFailedException If the given value is not a \DateTime
+     */
+    public function reverseTransform($value)
+    {
+        if (null === $value) {
+            return null;
+        }
+
+        if (!$value instanceof \DateTime) {
+            throw new TransformationFailedException('Expected a \DateTime.');
+        }
+
+        return \DateTimeImmutable::createFromMutable($value);
+    }
+}
diff --git a/src/Symfony/Component/Form/Extension/Core/Type/DateTimeType.php b/src/Symfony/Component/Form/Extension/Core/Type/DateTimeType.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Form\FormView;
 use Symfony\Component\Form\ReversedTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DataTransformerChain;
+use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeImmutableToDateTimeTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToArrayTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToLocalizedStringTransformer;
@@ -165,7 +166,9 @@ public function buildForm(FormBuilderInterface $builder, array $options)
             ;
         }
 
-        if ('string' === $options['input']) {
+        if ('datetime_immutable' === $options['input']) {
+            $builder->addModelTransformer(new DateTimeImmutableToDateTimeTransformer());
+        } elseif ('string' === $options['input']) {
             $builder->addModelTransformer(new ReversedTransformer(
                 new DateTimeToStringTransformer($options['model_timezone'], $options['model_timezone'])
             ));
@@ -254,6 +257,7 @@ public function configureOptions(OptionsResolver $resolver)
 
         $resolver->setAllowedValues('input', array(
             'datetime',
+            'datetime_immutable',
             'string',
             'timestamp',
             'array',

diff --git a/src/Symfony/Component/Form/Extension/Core/Type/DateType.php b/src/Symfony/Component/Form/Extension/Core/Type/DateType.php
@@ -15,6 +15,7 @@
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormView;
+use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeImmutableToDateTimeTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToLocalizedStringTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToArrayTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
@@ -123,7 +124,9 @@ class_exists('IntlTimeZone', false) ? \IntlTimeZone::createDefault() : null,
             ;
         }
 
-        if ('string' === $options['input']) {
+        if ('datetime_immutable' === $options['input']) {
+            $builder->addModelTransformer(new DateTimeImmutableToDateTimeTransformer());
+        } elseif ('string' === $options['input']) {
             $builder->addModelTransformer(new ReversedTransformer(
                 new DateTimeToStringTransformer($options['model_timezone'], $options['model_timezone'], 'Y-m-d')
             ));
@@ -258,6 +261,7 @@ public function configureOptions(OptionsResolver $resolver)
 
         $resolver->setAllowedValues('input', array(
             'datetime',
+            'datetime_immutable',
             'string',
             'timestamp',
             'array',

diff --git a/src/Symfony/Component/Form/Extension/Core/Type/TimeType.php b/src/Symfony/Component/Form/Extension/Core/Type/TimeType.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\ReversedTransformer;
 use Symfony\Component\Form\Exception\InvalidConfigurationException;
+use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeImmutableToDateTimeTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToTimestampTransformer;
 use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToArrayTransformer;
@@ -133,7 +134,9 @@ public function buildForm(FormBuilderInterface $builder, array $options)
             $builder->addViewTransformer(new DateTimeToArrayTransformer($options['model_timezone'], $options['view_timezone'], $parts, 'text' === $options['widget']));
         }
 
-        if ('string' === $options['input']) {
+        if ('datetime_immutable' === $options['input']) {
+            $builder->addModelTransformer(new DateTimeImmutableToDateTimeTransformer());
+        } elseif ('string' === $options['input']) {
             $builder->addModelTransformer(new ReversedTransformer(
                 new DateTimeToStringTransformer($options['model_timezone'], $options['model_timezone'], 'H:i:s')
             ));
@@ -252,6 +255,7 @@ public function configureOptions(OptionsResolver $resolver)
 
         $resolver->setAllowedValues('input', array(
             'datetime',
+            'datetime_immutable',
             'string',
             'timestamp',
             'array',

diff --git a/.../Form/Tests/Extension/Core/DataTransformer/DateTimeImmutableToDateTimeTransformerTest.php b/.../Form/Tests/Extension/Core/DataTransformer/DateTimeImmutableToDateTimeTransformerTest.php
@@ -0,0 +1,76 @@
+<?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\DateTimeImmutableToDateTimeTransformer;
+
+class DateTimeImmutableToDateTimeTransformerTest extends TestCase
+{
+    public function testTransform()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+
+        $input = new \DateTimeImmutable('2010-02-03 04:05:06 UTC');
+        $expectedOutput = new \DateTime('2010-02-03 04:05:06 UTC');
+        $actualOutput = $transformer->transform($input);
+
+        $this->assertInstanceOf(\DateTime::class, $actualOutput);
+        $this->assertEquals($expectedOutput, $actualOutput);
+    }
+
+    public function testTransformEmpty()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+
+        $this->assertNull($transformer->transform(null));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
+     * @expectedExceptionMessage Expected a \DateTimeImmutable.
+     */
+    public function testTransformFail()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+        $transformer->transform(new \DateTime());
+    }
+
+    public function testReverseTransform()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+
+        $input = new \DateTime('2010-02-03 04:05:06 UTC');
+        $expectedOutput = new \DateTimeImmutable('2010-02-03 04:05:06 UTC');
+        $actualOutput = $transformer->reverseTransform($input);
+
+        $this->assertInstanceOf(\DateTimeImmutable::class, $actualOutput);
+        $this->assertEquals($expectedOutput, $actualOutput);
+    }
+
+    public function testReverseTransformEmpty()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+
+        $this->assertNull($transformer->reverseTransform(null));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Form\Exception\TransformationFailedException
+     * @expectedExceptionMessage Expected a \DateTime.
+     */
+    public function testReverseTransformFail()
+    {
+        $transformer = new DateTimeImmutableToDateTimeTransformer();
+        $transformer->reverseTransform(new \DateTimeImmutable());
+    }
+}
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateTimeTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateTimeTypeTest.php
@@ -52,6 +52,34 @@ public function testSubmitDateTime()
         $this->assertEquals($dateTime, $form->getData());
     }
 
+    public function testSubmitDateTimeImmutable()
+    {
+        $form = $this->factory->create(static::TESTED_TYPE, null, array(
+            'model_timezone' => 'UTC',
+            'view_timezone' => 'UTC',
+            'date_widget' => 'choice',
+            'years' => array(2010),
+            'time_widget' => 'choice',
+            'input' => 'datetime_immutable',
+        ));
+
+        $form->submit(array(
+            'date' => array(
+                'day' => '2',
+                'month' => '6',
+                'year' => '2010',
+            ),
+            'time' => array(
+                'hour' => '3',
+                'minute' => '4',
+            ),
+        ));
+
+        $dateTime = new \DateTimeImmutable('2010-06-02 03:04:00 UTC');
+
+        $this->assertEquals($dateTime, $form->getData());
+    }
+
     public function testSubmitString()
     {
         $form = $this->factory->create(static::TESTED_TYPE, null, array(
@@ -219,6 +247,26 @@ public function testSubmitDifferentTimezonesDateTime()
         $this->assertEquals('2010-06-02T03:04:00-10:00', $form->getViewData());
     }
 
+    public function testSubmitDifferentTimezonesDateTimeImmutable()
+    {
+        $form = $this->factory->create(static::TESTED_TYPE, null, array(
+            'model_timezone' => 'America/New_York',
+            'view_timezone' => 'Pacific/Tahiti',
+            'widget' => 'single_text',
+            'input' => 'datetime_immutable',
+        ));
+
+        $outputTime = new \DateTimeImmutable('2010-06-02 03:04:00 Pacific/Tahiti');
+
+        $form->submit('2010-06-02T03:04:00-10:00');
+
+        $outputTime = $outputTime->setTimezone(new \DateTimeZone('America/New_York'));
+
+        $this->assertInstanceOf(\DateTimeImmutable::class, $form->getData());
+        $this->assertEquals($outputTime, $form->getData());
+        $this->assertEquals('2010-06-02T03:04:00-10:00', $form->getViewData());
+    }
+
     public function testSubmitStringSingleText()
     {
         $form = $this->factory->create(static::TESTED_TYPE, null, array(

diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateTypeTest.php
@@ -105,6 +105,28 @@ public function testSubmitFromSingleTextDateTime()
         $this->assertEquals('02.06.2010', $form->getViewData());
     }
 
+    public function testSubmitFromSingleTextDateTimeImmutable()
+    {
+        // we test against "de_DE", so we need the full implementation
+        IntlTestHelper::requireFullIntl($this, false);
+
+        \Locale::setDefault('de_DE');
+
+        $form = $this->factory->create(static::TESTED_TYPE, null, array(
+            'format' => \IntlDateFormatter::MEDIUM,
+            'model_timezone' => 'UTC',
+            'view_timezone' => 'UTC',
+            'widget' => 'single_text',
+            'input' => 'datetime_immutable',
+        ));
+
+        $form->submit('2.6.2010');
+
+        $this->assertInstanceOf(\DateTimeImmutable::class, $form->getData());
+        $this->assertEquals(new \DateTimeImmutable('2010-06-02 UTC'), $form->getData());
+        $this->assertEquals('02.06.2010', $form->getViewData());
+    }
+
     public function testSubmitFromSingleTextString()
     {
         // we test against "de_DE", so we need the full implementation

diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/TimeTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/TimeTypeTest.php
@@ -39,6 +39,28 @@ public function testSubmitDateTime()
         $this->assertEquals($input, $form->getViewData());
     }
 
+    public function testSubmitDateTimeImmutable()
+    {
+        $form = $this->factory->create(static::TESTED_TYPE, null, array(
+            'model_timezone' => 'UTC',
+            'view_timezone' => 'UTC',
+            'input' => 'datetime_immutable',
+        ));
+
+        $input = array(
+            'hour' => '3',
+            'minute' => '4',
+        );
+
+        $form->submit($input);
+
+        $dateTime = new \DateTimeImmutable('1970-01-01 03:04:00 UTC');
+
+        $this->assertInstanceOf(\DateTimeImmutable::class, $form->getData());
+        $this->assertEquals($dateTime, $form->getData());
+        $this->assertEquals($input, $form->getViewData());
+    }
+
     public function testSubmitString()
     {
         $form = $this->factory->create(static::TESTED_TYPE, null, array(