class FileSelection in Drupal 10

Provides specific access control for the file entity type.

Plugin annotation

@EntityReferenceSelection(
  id = "default:file",
  label = @Translation("File selection"),
  entity_types = {"file"},
  group = "default",
  weight = 1
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginBase implements ConfigurableInterface, DependentPluginInterface, SelectionInterface
      • class \Drupal\Core\Entity\Plugin\EntityReferenceSelection\DefaultSelection implements SelectionWithAutocreateInterface, ContainerFactoryPluginInterface
        • class \Drupal\file\Plugin\EntityReferenceSelection\FileSelection

File

core/modules/file/src/Plugin/EntityReferenceSelection/FileSelection.php, line 19

Namespace

Drupal\file\Plugin\EntityReferenceSelection

class FileSelection extends DefaultSelection {

  /**
   * {@inheritdoc}
   */
  protected function buildEntityQuery($match = NULL, $match_operator = 'CONTAINS') {
    $query = parent::buildEntityQuery($match, $match_operator);

    // Allow referencing :
    // - files with status "permanent"
    // - or files uploaded by the current user (since newly uploaded files only
    //   become "permanent" after the containing entity gets validated and
    //   saved.)
    $query
      ->condition($query
      ->orConditionGroup()
      ->condition('status', FileInterface::STATUS_PERMANENT)
      ->condition('uid', $this->currentUser
      ->id()));
    return $query;
  }

  /**
   * {@inheritdoc}
   */
  public function createNewEntity($entity_type_id, $bundle, $label, $uid) {
    $file = parent::createNewEntity($entity_type_id, $bundle, $label, $uid);

    // In order to create a referenceable file, it needs to have a "permanent"
    // status.

    /** @var \Drupal\file\FileInterface $file */
    $file
      ->setPermanent();
    return $file;
  }

  /**
   * {@inheritdoc}
   */
  public function validateReferenceableNewEntities(array $entities) {
    $entities = parent::validateReferenceableNewEntities($entities);
    $entities = array_filter($entities, function ($file) {

      /** @var \Drupal\file\FileInterface $file */
      return $file
        ->isPermanent() || $file
        ->getOwnerId() === $this->currentUser
        ->id();
    });
    return $entities;
  }

}