/**
* {@inheritDoc}
*
* Shouldn't be called manually.
*/
public function setParent(IItem $item)
{
if (!$item->hasChild($this)) {
throw new Exception('Please do not call this function manually. Parent
assignation is managed automatically.');
}
if ($item->equals($this)) {
throw new Exception('Item can\'t be a child to itself');
}
$this->parent = $item;
return $this;
}
