SubItem::setParentId

public function setParentId($id)
{
	$id = intval($id);

//		if(!$id)
//		{
//			$this->parentId = 0;
//		}
//		else
//		{
//			$this->parentId = Assert::expectIntegerNonNegative($id, '$id'); // todo: do we need exception here?
//			$this->values[static::getParentConnectorField()] = $this->parentId;
//			$this->setFieldModified(static::getParentConnectorField());
//		}

	$this->parentId = $id;
	$this->values[static::getParentConnectorField()] = $this->parentId;
	$this->setFieldModified(static::getParentConnectorField());
}