modify(sprintf('- %d days', $days)); return $this->fetchOlderThanTime($endTime); } public function olderThanHours(int $hours): Result { Assert::greaterThanEq( $hours, 1, sprintf('Number of hours should be at least 1, "%s given', $hours) ); $endTime = new DateTime(); $endTime->modify(sprintf('- %d hours', $hours)); return $this->fetchOlderThanTime($endTime); } public function all(): Result { $query = <<connection->executeQuery($query); } private function fetchOlderThanTime(DateTime $timeLimit): Result { $query = <<connection->executeQuery( $query, ['create_time' => $timeLimit, 'status' => BatchStatus::COMPLETED], ['create_time' => Types::DATETIME_MUTABLE] ); } }