public function PrimitiveDataNormalizer::normalize in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/serialization/src/Normalizer/PrimitiveDataNormalizer.php \Drupal\serialization\Normalizer\PrimitiveDataNormalizer::normalize()

File

core/modules/serialization/src/Normalizer/PrimitiveDataNormalizer.php, line 23

Class

PrimitiveDataNormalizer

Converts primitive data objects to their casted values.

Namespace

Drupal\serialization\Normalizer

Code

public function normalize($object, $format = NULL, array $context = []) {

  // Add cacheability if applicable.
  $this
    ->addCacheableDependency($context, $object);
  $parent = $object
    ->getParent();
  if ($parent instanceof FieldItemInterface && $object
    ->getValue()) {
    $serialized_property_names = $this
      ->getCustomSerializedPropertyNames($parent);
    if (in_array($object
      ->getName(), $serialized_property_names, TRUE)) {
      return unserialize($object
        ->getValue());
    }
  }

  // Typed data casts NULL objects to their empty variants, so for example
  // the empty string ('') for string type data, or 0 for integer typed data.
  // In a better world with typed data implementing algebraic data types,
  // getCastedValue would return NULL, but as typed data is not aware of real
  // optional values on the primitive level, we implement our own optional
  // value normalization here.
  return $object
    ->getValue() === NULL ? NULL : $object
    ->getCastedValue();
}