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[Serializer] Add an option to skip null values

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This commit is contained in:
Kévin Dunglas 2018-10-01 12:54:45 +02:00 committed by Nicolas Grekas
parent 9610d10034
commit d3c5055f7b
3 changed files with 16 additions and 0 deletions
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1
src/Symfony/Component/Serializer/CHANGELOG.md
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@ -4,6 +4,7 @@ CHANGELOG
4.2.0
-----
* added a `skip_null_values` context option to not serialize properties with a `null` values
* `AbstractNormalizer::handleCircularReference` is now final and receives
two optional extra arguments: the format and the context
* added support for XML comment encoding (encoding `['#comment' => ' foo ']` results `<!-- foo -->`)

5
src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
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@ -35,6 +35,7 @@ abstract class AbstractObjectNormalizer extends AbstractNormalizer
const ENABLE_MAX_DEPTH = 'enable_max_depth';
const DEPTH_KEY_PATTERN = 'depth_%s::%s';
const DISABLE_TYPE_ENFORCEMENT = 'disable_type_enforcement';
const SKIP_NULL_VALUES = 'skip_null_values';
private $propertyTypeExtractor;
private $typesCache = array();
@ -402,6 +403,10 @@ abstract class AbstractObjectNormalizer extends AbstractNormalizer
*/
private function updateData(array $data, string $attribute, $attributeValue, string $class, ?string $format, array $context): array
{
if (null === $attributeValue && ($context[self::SKIP_NULL_VALUES] ?? false)) {
return $data;
}
if ($this->nameConverter) {
$attribute = $this->nameConverter->normalize($attribute, $class, $format, $context);
}

10
src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
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@ -161,6 +161,16 @@ class AbstractObjectNormalizerTest extends TestCase
'allow_extra_attributes' => false,
));
}
public function testSkipNullValues()
{
$dummy = new Dummy();
$dummy->bar = 'present';
$normalizer = new ObjectNormalizer();
$result = $normalizer->normalize($dummy, null, array(AbstractObjectNormalizer::SKIP_NULL_VALUES => true));
$this->assertSame(array('bar' => 'present'), $result);
}
}
class AbstractObjectNormalizerDummy extends AbstractObjectNormalizer