public function TranslateEntityProcessor::build in Facets 8

Runs before the renderable array is created.

Parameters

\Drupal\facets\FacetInterface $facet: The facet being changed.

\Drupal\facets\Result\ResultInterface[] $results: The results being changed.

Return value

\Drupal\facets\Result\ResultInterface[] The changed results.

Overrides BuildProcessorInterface::build

File

src/Plugin/facets/processor/TranslateEntityProcessor.php, line 82

Class

TranslateEntityProcessor

Transforms the results to show the translated entity label.

Namespace

Drupal\facets\Plugin\facets\processor

Code

public function build(FacetInterface $facet, array $results) {
  $language_interface = $this->languageManager
    ->getCurrentLanguage();

  /** @var \Drupal\Core\TypedData\DataDefinitionInterface $data_definition */
  $data_definition = $facet
    ->getDataDefinition();
  $property = NULL;
  foreach ($data_definition
    ->getPropertyDefinitions() as $k => $definition) {
    if ($definition instanceof DataReferenceDefinitionInterface) {
      $property = $k;
      break;
    }
  }
  if ($property === NULL) {
    throw new InvalidProcessorException("Field doesn't have an entity definition, so this processor doesn't work.");
  }
  $entity_type = $data_definition
    ->getPropertyDefinition($property)
    ->getTargetDefinition()
    ->getEntityTypeId();

  /** @var \Drupal\facets\Result\ResultInterface $result */
  $ids = [];
  foreach ($results as $delta => $result) {
    $ids[$delta] = $result
      ->getRawValue();
  }

  // Load all indexed entities of this type.
  $entities = $this->entityTypeManager
    ->getStorage($entity_type)
    ->loadMultiple($ids);

  // Loop over all results.
  foreach ($results as $i => $result) {
    if (!isset($entities[$ids[$i]])) {
      unset($results[$i]);
      continue;
    }

    /** @var \Drupal\Core\Entity\ContentEntityBase $entity */
    $entity = $entities[$ids[$i]];

    // Check for a translation of the entity and load that instead if one's
    // found.
    if ($entity instanceof TranslatableInterface && $entity
      ->hasTranslation($language_interface
      ->getId())) {
      $entity = $entity
        ->getTranslation($language_interface
        ->getId());
    }

    // Overwrite the result's display value.
    $results[$i]
      ->setDisplayValue($entity
      ->label());
  }

  // Return the results with the new display values.
  return $results;
}