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Feature: skip empty arrays on serialization #31

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Feature: skip empty arrays on serialization #31

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10 changes: 10 additions & 0 deletions Normalizer/AbstractObjectNormalizer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,12 @@ abstract class AbstractObjectNormalizer extends AbstractNormalizer
*/
public const SKIP_NULL_VALUES = 'skip_null_values';

/**
* Flag to control whether fields with the value `[]` should be output
* when normalizing or omitted.
*/
public const SKIP_EMPTY_ARRAY_VALUES = 'skip_empty_array_values';

/**
* Flag to control whether uninitialized PHP>=7.4 typed class properties
* should be excluded when normalizing.
Expand Down Expand Up @@ -654,6 +660,10 @@ private function updateData(array $data, string $attribute, mixed $attributeValu
return $data;
}

if (is_array($attributeValue) && count($attributeValue) === 0 && ($context[self::SKIP_EMPTY_ARRAY_VALUES] ?? $this->defaultContext[self::SKIP_EMPTY_ARRAY_VALUES] ?? false)) {
return $data;
}

if (null !== $classMetadata && null !== $serializedPath = ($attributesMetadata[$attribute] ?? null)?->getSerializedPath()) {
$propertyAccessor = PropertyAccess::createPropertyAccessor();
if ($propertyAccessor->isReadable($data, $serializedPath) && null !== $propertyAccessor->getValue($data, $serializedPath)) {
Expand Down