public function saveCategory($id, $name, $bonus)
{
$db = $this->db;
$newCategory = new ItemCategory();
$newCategory->setName($name);
$newCategory->setBonus($bonus);
if (0 != $id) {
$newCategory->setID($id);
$newCategory->update($db);
} else {
$newCategory->save($db);
}
}