public function Exporter::exportContentWithReferences in Default Content for D8 2.0.x

Same name and namespace in other branches

1. 8 src/Exporter.php \Drupal\default_content\Exporter::exportContentWithReferences()

Exports a single entity and all its referenced entity.

Parameters

string $entity_type_id: The entity type ID.

mixed $entity_id: The entity ID to export.

string|null $folder: (optional) A folder to write the exported entities into, grouped by entity type. File entities also export their files into the same folder.

Return value

string[][] The serialized entities keyed by entity type and UUID.

Overrides ExporterInterface::exportContentWithReferences

File

src/Exporter.php, line 129

Class

Exporter

A service for handling import of default content.

Namespace

Drupal\default_content

Code

public function exportContentWithReferences($entity_type_id, $entity_id, $folder = NULL) {
  $storage = $this->entityTypeManager
    ->getStorage($entity_type_id);
  $entity = $storage
    ->load($entity_id);
  if (!$entity) {
    throw new \InvalidArgumentException(sprintf('Entity "%s" with ID "%s" does not exist', $entity_type_id, $entity_id));
  }
  if (!$entity instanceof ContentEntityInterface) {
    throw new \InvalidArgumentException(sprintf('Entity "%s" with ID "%s" is not a content entity', $entity_type_id, $entity_id));
  }
  $entities = [
    $entity
      ->uuid() => $entity,
  ];
  $entities = $this
    ->getEntityReferencesRecursive($entity, 0, $entities);

  // Serialize all entities and key them by entity TYPE and uuid.
  $serialized_entities_per_type = [];
  foreach ($entities as $entity) {
    $normalized = $this->contentEntityNormalizer
      ->normalize($entity);
    $encoded = Yaml::encode($normalized);
    $serialized_entities_per_type[$entity
      ->getEntityTypeId()][$entity
      ->uuid()] = $encoded;
    if ($folder) {
      $this->contentFileStorage
        ->writeEntity($folder, $encoded, $entity);
    }
  }
  return $serialized_entities_per_type;
}