/**
* @see ProjectItemInterface::set_class()
* @param string $class_name
* @return bool
*/
public function set_class($class_name)
{
global $user, $transaction;
if ($this->item_id) {
$transaction_id = $transaction->begin();
if (($item_class_id = $this->exist_class($class_name)) == null) {
$item_class = new ItemClass(null);
if (($item_class_id = $item_class->create($class_name, $user->get_user_id())) == null) {
if ($transaction_id != null) {
$transaction->rollback($transaction_id);
}
return false;
}
} else {
$item_class = new ItemClass($item_class_id);
}
$this->item_class_id = $item_class_id;
if ($item_class->link_item($this->item_id) == true) {
if ($transaction_id != null) {
$transaction->commit($transaction_id);
}
return true;
} else {
if ($transaction_id != null) {
$transaction->rollback($transaction_id);
}
return false;
}
} else {
return false;
}
}
/**
* @see ItemInterface::get_class_ids()
* @return integer
*/
public final function get_class_ids()
{
if ($this->item_id) {
$item_class_array = ItemClass::list_classes_by_item_id($this->item_id);
if (is_array($item_class_array) and count($item_class_array) >= 1) {
return $item_class_array;
} else {
return null;
}
} else {
return null;
}
}
