<?php namespace tests\Helper; use OC; use OCP\IDBConnection; trait DatabaseTransaction { public function startTransaction() { /* @var $db IDBConnection */ $db = OC::$server->get(IDBConnection::class); $db->beginTransaction(); } public function rollbackTransaction() { /* @var $db IDBConnection */ $db = OC::$server->get(IDBConnection::class); $db->rollBack(); } }