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Commita5c2a5e

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Add new feature to serializer: empty_data
You can now add empty_data to the context on deserializationof objects. This allow you to deserialize objects that haverequirements in the constructor that can't be given.Basically, it helps you hydrate with value objects, so thevalidation component can invalid the object without theserializer send an error.
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‎src/Symfony/Component/Serializer/CHANGELOG.md‎

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@@ -6,6 +6,8 @@ CHANGELOG
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* added`IncompleteInputDataException` new exception for deserialization failure
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of objects that needs data insertion in constructor
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* added an optional`empty_data` option of context to specify a default data in
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case the object is not initializable by its constructor because of data missing
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4.0.0
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-----

‎src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php‎

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@@ -37,6 +37,7 @@ abstract class AbstractNormalizer implements NormalizerInterface, DenormalizerIn
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constGROUPS ='groups';
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constATTRIBUTES ='attributes';
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constALLOW_EXTRA_ATTRIBUTES ='allow_extra_attributes';
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constEMPTY_DATA ='empty_data';
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/**
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* @var int
@@ -355,6 +356,8 @@ protected function instantiateObject(array &$data, $class, array &$context, \Ref
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// Don't run set for a parameter passed to the constructor
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$params[] =$parameterData;
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unset($data[$key]);
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}elseif ($allowed && !$ignored &&isset($context[static::EMPTY_DATA][$class][$key])) {
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$params[] =$context[static::EMPTY_DATA][$class][$key];
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}elseif ($constructorParameter->isDefaultValueAvailable()) {
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$params[] =$constructorParameter->getDefaultValue();
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}else {

‎src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php‎

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@@ -218,6 +218,23 @@ public function testConstructorWithMissingData()
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$normalizer->denormalize($data, DummyValueObject::class);
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}
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publicfunctiontestFillWithEmptyDataWhenMissingData()
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{
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$data =array(
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'foo' =>10,
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);
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$normalizer =newObjectNormalizer();
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$result =$normalizer->denormalize($data, DummyValueObject::class,'json',array(
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'empty_data' =>array(
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DummyValueObject::class => ['foo' =>'','bar' =>''],
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),
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));
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$this->assertEquals(newDummyValueObject(10,''),$result);
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}
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publicfunctiontestGroupsNormalize()
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{
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$classMetadataFactory =newClassMetadataFactory(newAnnotationLoader(newAnnotationReader()));

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