function _social_follow_taxonomy_invalidate_follow_tag_cache in Open Social 10.3.x

Same name and namespace in other branches

1. 10.0.x modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module \_social_follow_taxonomy_invalidate_follow_tag_cache()
2. 10.1.x modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module \_social_follow_taxonomy_invalidate_follow_tag_cache()
3. 10.2.x modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module \_social_follow_taxonomy_invalidate_follow_tag_cache()

Invalidates cache for added/removed tags to entity.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity.

2 calls to _social_follow_taxonomy_invalidate_follow_tag_cache()

social_follow_taxonomy_entity_delete in modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module

Implements hook_entity_delete().

social_follow_taxonomy_entity_presave in modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module

Implements hook_entity_presave().

File

modules/social_features/social_follow_taxonomy/social_follow_taxonomy.module, line 515

Contains social_follow_taxonomy.module.

Code

function _social_follow_taxonomy_invalidate_follow_tag_cache(EntityInterface $entity) {
  if (!$entity instanceof ContentEntityInterface || !$entity
    ->hasField('social_tagging')) {
    return;
  }
  if ($entity
    ->isNew()) {
    if ($entity
      ->get('social_tagging')
      ->isEmpty()) {
      return;
    }

    // Added tags.
    $tags = array_column($entity
      ->get('social_tagging')
      ->getValue(), 'target_id');
  }
  else {
    $tags = [];

    /** @var \Drupal\node\NodeInterface $old_entity */
    $old_entity = $entity->original;
    if (!is_null($old_entity)) {

      // Tags before save.
      $old_tags = $old_entity
        ->get('social_tagging')
        ->getValue();

      // Tags after save.
      $new_tags = $entity
        ->get('social_tagging')
        ->getValue();

      // Get removed/added tags.
      $tags_removed = array_diff(array_column($old_tags, 'target_id'), array_column($new_tags, 'target_id'));
      $tags_added = array_diff(array_column($new_tags, 'target_id'), array_column($old_tags, 'target_id'));
      if (!empty($tags_removed)) {
        $tags = array_merge($tags, $tags_removed);
      }
      if (!empty($tags_added)) {
        $tags = array_merge($tags, $tags_added);
      }
    }
    else {
      $tags = array_column($entity
        ->get('social_tagging')
        ->getValue(), 'target_id');
    }
  }

  // Get entity type.
  $entity_type = $entity
    ->getEntityTypeId();

  // Invalidate cache for specific tags.
  if (!empty($tags)) {
    foreach ($tags as $tag) {
      $invalidate_tag[] = "follow_tag_{$entity_type}:{$tag}";
    }
    \Drupal::service('cache_tags.invalidator')
      ->invalidateTags($invalidate_tag);
  }
}