public static function getIndexNullableList() { if (!self::$nullableFields) { self::$nullableFields = array('tags', 'categories', 'flavor_params', 'kshow_id', 'group_id', 'description', 'admin_tags', 'reference_id', 'replacing_entry_id', 'replaced_entry_id', 'roots', 'entitled_kusers_publish', 'entitled_kusers_edit', 'entitled_kusers', 'privacy_by_contexts'); } return self::$nullableFields; }