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Commitcab06a1

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minor#8914 Add new serializer empty_data feature doc (Nek-, javiereguiluz)
This PR was merged into the 4.1 branch.Discussion----------Add new serializer empty_data feature docThis is the documentation related to the following feature:symfony/symfony#25493Commits-------9f31bbb Fix not precise enough sentenceb0d3fe8 Minor reword5a48201 Add new serializer empty_data feature doc
2 parents2ae4c65 +9f31bbb commitcab06a1

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‎components/serializer.rst‎

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@@ -1089,6 +1089,41 @@ These are the options available:
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``remove_empty_tags``
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If set to true, removes all empty tags in the generated XML.
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Handling Constructor Arguments
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------------------------------
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If the constructor of a class defines arguments, as usually happens with
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`Value Objects`_, the serializer won't be able to create the object if some
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arguments are missing. In those cases, use the ``default_constructor_arguments``
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context option::
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use Symfony\Component\Serializer\Serializer;
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use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
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class MyObj
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{
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private $foo;
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private $bar;
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public function __construct($foo, $bar)
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{
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$this->foo = $foo;
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$this->bar = $bar;
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}
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}
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$normalizer = new ObjectNormalizer($classMetadataFactory);
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$serializer = new Serializer(array($normalizer));
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$data = $serializer->denormalize(
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array('foo' => 'Hello'),
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'MyObj',
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array('default_constructor_arguments' => array(
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'MyObj' => array('foo' => '', 'bar' => ''),
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)
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));
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// $data = new MyObj('Hello', '');
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Recursive Denormalization and Type Safety
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-----------------------------------------
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@@ -1273,3 +1308,4 @@ Learn more
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.. _YAML:http://yaml.org/
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.. _CSV:https://tools.ietf.org/html/rfc4180
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.. _`RFC 7807`:https://tools.ietf.org/html/rfc7807
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.. _`Value Objects`:https://en.wikipedia.org/wiki/Value_object

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