Merge branch '2.8' into 3.4

* 2.8:
  [Form] Fixed keeping hash of equal \DateTimeInterface on submit
  [PhpUnitBridge] Fix typo
  [Config] Unset key during normalization
  invalidate forms on transformation failures

src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php

@@ -33,7 +33,7 @@ class DeprecationErrorHandler
      * - use "/some-regexp/" to stop the test suite whenever a deprecation
      *   message matches the given regular expression;
      * - use a number to define the upper bound of allowed deprecations,
-     *   making the test suite fail whenever more notices are trigerred.
+     *   making the test suite fail whenever more notices are triggered.
      *
      * @param int|string|false $mode The reporting mode, defaults to not allowing any deprecations
      */

src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml

@@ -159,6 +159,11 @@
             <deprecated>The "%service_id%" service is deprecated since Symfony 3.1 and will be removed in 4.0.</deprecated>
         </service>
 
+        <service id="form.type_extension.form.transformation_failure_handling" class="Symfony\Component\Form\Extension\Core\Type\TransformationFailureExtension">
+            <tag name="form.type_extension" extended-type="Symfony\Component\Form\Extension\Core\Type\FormType" />
+            <argument type="service" id="translator" on-invalid="ignore" />
+        </service>
+
         <!-- FormTypeHttpFoundationExtension -->
         <service id="form.type_extension.form.http_foundation" class="Symfony\Component\Form\Extension\HttpFoundation\Type\FormTypeHttpFoundationExtension">
             <argument type="service" id="form.type_extension.form.request_handler" />

src/Symfony/Component/Config/Definition/ArrayNode.php

@@ -292,7 +292,10 @@ class ArrayNode extends BaseNode implements PrototypeNodeInterface
         $normalized = array();
         foreach ($value as $name => $val) {
             if (isset($this->children[$name])) {
-                $normalized[$name] = $this->children[$name]->normalize($val);
+                try {
+                    $normalized[$name] = $this->children[$name]->normalize($val);
+                } catch (UnsetKeyException $e) {
+                }
                 unset($value[$name]);
             } elseif (!$this->removeExtraKeys) {
                 $normalized[$name] = $val;

src/Symfony/Component/Config/Definition/Builder/ExprBuilder.php

@@ -174,7 +174,7 @@ class ExprBuilder
     }
 
     /**
-     * Sets a closure marking the value as invalid at validation time.
+     * Sets a closure marking the value as invalid at processing time.
      *
      * if you want to add the value of the node in your message just use a %s placeholder.
      *
@@ -192,7 +192,7 @@ class ExprBuilder
     }
 
     /**
-     * Sets a closure unsetting this key of the array at validation time.
+     * Sets a closure unsetting this key of the array at processing time.
      *
      * @return $this
      *

src/Symfony/Component/Config/Tests/Definition/Builder/ArrayNodeDefinitionTest.php

@@ -231,6 +231,25 @@ class ArrayNodeDefinitionTest extends TestCase
         $this->assertFalse($this->getField($node, 'normalizeKeys'));
     }
 
+    public function testUnsetChild()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->children()
+                ->scalarNode('value')
+                    ->beforeNormalization()
+                        ->ifTrue(function ($value) {
+                            return empty($value);
+                        })
+                        ->thenUnset()
+                    ->end()
+                ->end()
+            ->end()
+        ;
+
+        $this->assertSame(array(), $node->getNode()->normalize(array('value' => null)));
+    }
+
     public function testPrototypeVariable()
     {
         $node = new ArrayNodeDefinition('root');

src/Symfony/Component/Form/Extension/Core/CoreExtension.php

@@ -16,8 +16,10 @@ use Symfony\Component\Form\ChoiceList\Factory\CachingFactoryDecorator;
 use Symfony\Component\Form\ChoiceList\Factory\ChoiceListFactoryInterface;
 use Symfony\Component\Form\ChoiceList\Factory\DefaultChoiceListFactory;
 use Symfony\Component\Form\ChoiceList\Factory\PropertyAccessDecorator;
+use Symfony\Component\Form\Extension\Core\Type\TransformationFailureExtension;
 use Symfony\Component\PropertyAccess\PropertyAccess;
 use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
+use Symfony\Component\Translation\TranslatorInterface;
 
 /**
  * Represents the main form extension, which loads the core functionality.
@@ -28,11 +30,13 @@ class CoreExtension extends AbstractExtension
 {
     private $propertyAccessor;
     private $choiceListFactory;
+    private $translator;
 
-    public function __construct(PropertyAccessorInterface $propertyAccessor = null, ChoiceListFactoryInterface $choiceListFactory = null)
+    public function __construct(PropertyAccessorInterface $propertyAccessor = null, ChoiceListFactoryInterface $choiceListFactory = null, TranslatorInterface $translator = null)
     {
         $this->propertyAccessor = $propertyAccessor ?: PropertyAccess::createPropertyAccessor();
         $this->choiceListFactory = $choiceListFactory ?: new CachingFactoryDecorator(new PropertyAccessDecorator(new DefaultChoiceListFactory(), $this->propertyAccessor));
+        $this->translator = $translator;
     }
 
     protected function loadTypes()
@@ -74,4 +78,11 @@ class CoreExtension extends AbstractExtension
             new Type\ColorType(),
         );
     }
+
+    protected function loadTypeExtensions()
+    {
+        return array(
+            new TransformationFailureExtension($this->translator),
+        );
+    }
 }

src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php

@@ -73,16 +73,17 @@ class PropertyPathMapper implements DataMapperInterface
             // Write-back is disabled if the form is not synchronized (transformation failed),
             // if the form was not submitted and if the form is disabled (modification not allowed)
             if (null !== $propertyPath && $config->getMapped() && $form->isSubmitted() && $form->isSynchronized() && !$form->isDisabled()) {
-                // If the field is of type DateTime and the data is the same skip the update to
+                $propertyValue = $form->getData();
+                // If the field is of type DateTimeInterface and the data is the same skip the update to
                 // keep the original object hash
-                if ($form->getData() instanceof \DateTime && $form->getData() == $this->propertyAccessor->getValue($data, $propertyPath)) {
+                if ($propertyValue instanceof \DateTimeInterface && $propertyValue == $this->propertyAccessor->getValue($data, $propertyPath)) {
                     continue;
                 }
 
                 // If the data is identical to the value in $data, we are
                 // dealing with a reference
-                if (!\is_object($data) || !$config->getByReference() || $form->getData() !== $this->propertyAccessor->getValue($data, $propertyPath)) {
-                    $this->propertyAccessor->setValue($data, $propertyPath, $form->getData());
+                if (!\is_object($data) || !$config->getByReference() || $propertyValue !== $this->propertyAccessor->getValue($data, $propertyPath)) {
+                    $this->propertyAccessor->setValue($data, $propertyPath, $propertyValue);
                 }
             }
         }

src/Symfony/Component/Form/Extension/Core/EventListener/TransformationFailureListener.php

@@ -0,0 +1,64 @@
+<?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\EventListener;
+
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\Form\FormError;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Translation\TranslatorInterface;
+
+/**
+ * @author Christian Flothmann <christian.flothmann@sensiolabs.de>
+ */
+class TransformationFailureListener implements EventSubscriberInterface
+{
+    private $translator;
+
+    public function __construct(TranslatorInterface $translator = null)
+    {
+        $this->translator = $translator;
+    }
+
+    public static function getSubscribedEvents()
+    {
+        return array(
+            FormEvents::POST_SUBMIT => array('convertTransformationFailureToFormError', -1024),
+        );
+    }
+
+    public function convertTransformationFailureToFormError(FormEvent $event)
+    {
+        $form = $event->getForm();
+
+        if (null === $form->getTransformationFailure() || !$form->isValid()) {
+            return;
+        }
+
+        foreach ($form as $child) {
+            if (!$child->isSynchronized()) {
+                return;
+            }
+        }
+
+        $clientDataAsString = is_scalar($form->getViewData()) ? (string) $form->getViewData() : \gettype($form->getViewData());
+        $messageTemplate = 'The value {{ value }} is not valid.';
+
+        if (null !== $this->translator) {
+            $message = $this->translator->trans($messageTemplate, array('{{ value }}' => $clientDataAsString));
+        } else {
+            $message = strtr($messageTemplate, array('{{ value }}' => $clientDataAsString));
+        }
+
+        $form->addError(new FormError($message, $messageTemplate, array('{{ value }}' => $clientDataAsString), null, $form->getTransformationFailure()));
+    }
+}

src/Symfony/Component/Form/Extension/Core/Type/TransformationFailureExtension.php

@@ -0,0 +1,42 @@
+<?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\Type;
+
+use Symfony\Component\Form\AbstractTypeExtension;
+use Symfony\Component\Form\Extension\Core\EventListener\TransformationFailureListener;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Translation\TranslatorInterface;
+
+/**
+ * @author Christian Flothmann <christian.flothmann@sensiolabs.de>
+ */
+class TransformationFailureExtension extends AbstractTypeExtension
+{
+    private $translator;
+
+    public function __construct(TranslatorInterface $translator = null)
+    {
+        $this->translator = $translator;
+    }
+
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        if (!isset($options['invalid_message']) && !isset($options['invalid_message_parameters'])) {
+            $builder->addEventSubscriber(new TransformationFailureListener($this->translator));
+        }
+    }
+
+    public function getExtendedType()
+    {
+        return 'Symfony\Component\Form\Extension\Core\Type\FormType';
+    }
+}

src/Symfony/Component/Form/Tests/Extension/Core/CoreExtensionTest.php

@@ -0,0 +1,33 @@
+<?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;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Form\Extension\Core\CoreExtension;
+use Symfony\Component\Form\FormFactoryBuilder;
+
+class CoreExtensionTest extends TestCase
+{
+    public function testTransformationFailuresAreConvertedIntoFormErrors()
+    {
+        $formFactoryBuilder = new FormFactoryBuilder();
+        $formFactory = $formFactoryBuilder->addExtension(new CoreExtension())
+            ->getFormFactory();
+
+        $form = $formFactory->createBuilder()
+            ->add('foo', 'Symfony\Component\Form\Extension\Core\Type\DateType')
+            ->getForm();
+        $form->submit('foo');
+
+        $this->assertFalse($form->isValid());
+    }
+}

src/Symfony/Component/Form/Tests/Extension/Core/DataMapper/PropertyPathMapperTest.php

@@ -357,4 +357,39 @@ class PropertyPathMapperTest extends TestCase
 
         $this->mapper->mapFormsToData(array($form), $car);
     }
+
+    /**
+     * @dataProvider provideDate
+     */
+    public function testMapFormsToDataDoesNotChangeEqualDateTimeInstance($date)
+    {
+        $article = array();
+        $publishedAt = $date;
+        $article['publishedAt'] = clone $publishedAt;
+        $propertyPath = $this->getPropertyPath('[publishedAt]');
+
+        $this->propertyAccessor->expects($this->once())
+            ->method('getValue')
+            ->willReturn($article['publishedAt'])
+        ;
+        $this->propertyAccessor->expects($this->never())
+            ->method('setValue')
+        ;
+
+        $config = new FormConfigBuilder('publishedAt', \get_class($publishedAt), $this->dispatcher);
+        $config->setByReference(false);
+        $config->setPropertyPath($propertyPath);
+        $config->setData($publishedAt);
+        $form = $this->getForm($config);
+
+        $this->mapper->mapFormsToData(array($form), $article);
+    }
+
+    public function provideDate()
+    {
+        return array(
+            array(new \DateTime()),
+            array(new \DateTimeImmutable()),
+        );
+    }
 }