public function RelationshipNormalizerValue::rasterizeValue in JSON:API 8

Get the rasterized value.

Return value

mixed The value.

Overrides FieldNormalizerValue::rasterizeValue

File

src/Normalizer/Value/RelationshipNormalizerValue.php, line 71

Class

RelationshipNormalizerValue

Helps normalize relationships in compliance with the JSON API spec.

Namespace

Drupal\jsonapi\Normalizer\Value

Code

public function rasterizeValue() {
  $links = $this
    ->getLinks($this->fieldName);

  // Empty 'to-one' relationships must be NULL.
  // Empty 'to-many' relationships must be an empty array.
  // @link http://jsonapi.org/format/#document-resource-object-linkage
  $data = parent::rasterizeValue() ?: [];
  if ($this->cardinality === 1) {
    return empty($data) ? [
      'data' => NULL,
      'links' => $links,
    ] : [
      'data' => $data,
      'links' => $links,
    ];
  }
  else {
    return [
      'data' => static::ensureUniqueResourceIdentifierObjects($data),
      'links' => $links,
    ];
  }
}