Method getUnitById

public static function getUnitById($unitId)
{
    $db = Factory::getDBO();
    $query = ' SELECT id, title FROM #__phocacart_units' . ' WHERE id = ' . (int) $unitId . ' AND published = 1';
    $db->setQuery($query);
    $result = $db->loadObject();
    return $result;
}