function taxonomy_build_node_index in Drupal 8

Same name and namespace in other branches

1. 7 modules/taxonomy/taxonomy.module \taxonomy_build_node_index()
2. 9 core/modules/taxonomy/taxonomy.module \taxonomy_build_node_index()

Builds and inserts taxonomy index entries for a given node.

The index lists all terms that are related to a given node entity, and is therefore maintained at the entity level.

Parameters

\Drupal\node\Entity\Node $node: The node entity.

Related topics

2 calls to taxonomy_build_node_index()

taxonomy_node_insert in core/modules/taxonomy/taxonomy.module

Implements hook_ENTITY_TYPE_insert() for node entities.

taxonomy_node_update in core/modules/taxonomy/taxonomy.module

Implements hook_ENTITY_TYPE_update() for node entities.

File

core/modules/taxonomy/taxonomy.module, line 532

Enables the organization of content into categories.

Code

function taxonomy_build_node_index($node) {

  // We maintain a denormalized table of term/node relationships, containing
  // only data for current, published nodes.
  if (!\Drupal::config('taxonomy.settings')
    ->get('maintain_index_table') || !\Drupal::entityTypeManager()
    ->getStorage('node') instanceof SqlContentEntityStorage) {
    return;
  }
  $status = $node
    ->isPublished();
  $sticky = (int) $node
    ->isSticky();

  // We only maintain the taxonomy index for published nodes.
  if ($status && $node
    ->isDefaultRevision()) {

    // Collect a unique list of all the term IDs from all node fields.
    $tid_all = [];
    $entity_reference_class = 'Drupal\\Core\\Field\\Plugin\\Field\\FieldType\\EntityReferenceItem';
    foreach ($node
      ->getFieldDefinitions() as $field) {
      $field_name = $field
        ->getName();
      $class = $field
        ->getItemDefinition()
        ->getClass();
      $is_entity_reference_class = $class === $entity_reference_class || is_subclass_of($class, $entity_reference_class);
      if ($is_entity_reference_class && $field
        ->getSetting('target_type') == 'taxonomy_term') {
        foreach ($node
          ->getTranslationLanguages() as $language) {
          foreach ($node
            ->getTranslation($language
            ->getId())->{$field_name} as $item) {
            if (!$item
              ->isEmpty()) {
              $tid_all[$item->target_id] = $item->target_id;
            }
          }
        }
      }
    }

    // Insert index entries for all the node's terms.
    if (!empty($tid_all)) {
      $connection = \Drupal::database();
      foreach ($tid_all as $tid) {
        $connection
          ->merge('taxonomy_index')
          ->key([
          'nid' => $node
            ->id(),
          'tid' => $tid,
          'status' => $node
            ->isPublished(),
        ])
          ->fields([
          'sticky' => $sticky,
          'created' => $node
            ->getCreatedTime(),
        ])
          ->execute();
      }
    }
  }
}