Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\taxonomy;
Chris@0: 
Chris@0: use Drupal\Core\Config\Entity\ConfigEntityStorage;
Chris@0: 
Chris@0: /**
Chris@0:  * Defines a storage handler class for taxonomy vocabularies.
Chris@0:  */
Chris@0: class VocabularyStorage extends ConfigEntityStorage implements VocabularyStorageInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function resetCache(array $ids = NULL) {
Chris@0:     drupal_static_reset('taxonomy_vocabulary_get_names');
Chris@0:     parent::resetCache($ids);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getToplevelTids($vids) {
Chris@0:     return db_query('SELECT t.tid FROM {taxonomy_term_data} t INNER JOIN {taxonomy_term_hierarchy} th ON th.tid = t.tid WHERE t.vid IN ( :vids[] ) AND th.parent = 0', [':vids[]' => $vids])->fetchCol();
Chris@0:   }
Chris@0: 
Chris@0: }