function cleanDBonPurge()
{
$ip = new Item_Problem();
$ip->cleanDBonItemDelete(__CLASS__, $this->fields['id']);
$ci = new Change_Item();
$ci->cleanDBonItemDelete(__CLASS__, $this->fields['id']);
$ip = new Item_Project();
$ip->cleanDBonItemDelete(__CLASS__, $this->fields['id']);
Item_Devices::cleanItemDeviceDBOnItemDelete($this->getType(), $this->fields['id'], !empty($this->input['keep_devices']));
}