public function AddHierarchy::preprocessIndexItems in Search API 8

Preprocesses search items for indexing.

Parameters

\Drupal\search_api\Item\ItemInterface[] $items: An array of items to be preprocessed for indexing.

Overrides ProcessorPluginBase::preprocessIndexItems

File

src/Plugin/search_api/processor/AddHierarchy.php, line 268

Class

AddHierarchy

Adds all ancestors' IDs to a hierarchical field.

Namespace

Drupal\search_api\Plugin\search_api\processor

Code

public function preprocessIndexItems(array $items) {

  /** @var \Drupal\search_api\Item\ItemInterface $item */
  foreach ($items as $item) {
    foreach ($this->configuration['fields'] as $field_id => $property_specifier) {
      $field = $item
        ->getField($field_id);
      if (!$field) {
        continue;
      }
      list($entity_type_id, $property) = explode('-', $property_specifier);
      foreach ($field
        ->getValues() as $entity_id) {
        if ($entity_id instanceof TextValue) {
          $entity_id = $entity_id
            ->getOriginalText();
        }
        if (is_scalar($entity_id)) {
          try {
            $this
              ->addHierarchyValues($entity_type_id, $entity_id, $property, $field);
          } catch (\Exception $e) {
            $vars = [
              '%index' => $this->index
                ->label(),
              '%field' => $field
                ->getLabel(),
              '%field_id' => $field
                ->getFieldIdentifier(),
            ];
            watchdog_exception('search_api', $e, '%type while trying to add hierarchy values to field %field (%field_id) on index %index: @message in %function (line %line of %file).', $vars);
            continue;
          }
        }
      }
    }
  }
}