function Term::postDelete

Overrides EntityBase::postDelete

File

core/modules/taxonomy/src/Entity/Term.php, line 89

Class

Term

Defines the taxonomy term entity.

Namespace

Code

public static function postDelete(EntityStorageInterface $storage, array $entities) {
    parent::postDelete($storage, $entities);
    // See if any of the term's children are about to be become orphans.
    $orphans = [];
    
    /** @var \Drupal\taxonomy\TermInterface $term */
    foreach ($entities as $tid => $term) {
        if ($children = $storage->getChildren($term)) {
            
            /** @var \Drupal\taxonomy\TermInterface $child */
            foreach ($children as $child) {
                $parent = $child->get('parent');
                // Update child parents item list.
                $parent->filter(function ($item) use ($tid) {
                    return $item->target_id != $tid;
                });
                // If the term has multiple parents, we don't delete it.
                if ($parent->count()) {
                    $child->save();
                }
                else {
                    $orphans[] = $child;
                }
            }
        }
    }
    if (!empty($orphans)) {
        $storage->delete($orphans);
    }
}