/**
* Append to operation internal handler
* @param bool $append
* @throws Exception
*/
protected function insertIntoInternal($append)
{
$this->checkNode(false);
$this->owner->setAttribute($this->parentAttribute, $this->node->getPrimaryKey());
if ($this->sortable !== false) {
if ($append) {
$this->owner->moveLast();
} else {
$this->owner->moveFirst();
}
}
}