public function getSibling($dir, $loop = true)
{
if ($dir == 'next') {
$filter = Ajde_Filter::FILTER_GREATER;
$order = Ajde_Query::ORDER_ASC;
} else {
$filter = Ajde_Filter::FILTER_LESS;
$order = Ajde_Query::ORDER_DESC;
}
if ($this->has('parent')) {
$siblings = new NodeCollection();
$siblings->addFilter(new Ajde_Filter_Where('sort', $filter, $this->sort));
$siblings->addFilter(new Ajde_Filter_Where('parent', Ajde_Filter::FILTER_EQUALS, (string) $this->get('parent')));
$siblings->orderBy('sort', $order);
$siblings->limit(1);
if ($siblings->count()) {
return $siblings->current();
}
}
// Not found, loop?
if ($loop === true) {
$siblings->reset();
$siblings->addFilter(new Ajde_Filter_Where('parent', Ajde_Filter::FILTER_EQUALS, (string) $this->get('parent')));
$siblings->orderBy('sort', $order);
$siblings->limit(1);
if ($siblings->count()) {
return $siblings->current();
}
}
// No sibling
return false;
}
/**
* Returns true/false as to whether this node
* has any child nodes or not.
*
* @return bool Any child nodes or not
*/
public function hasChildren()
{
return $this->nodes->count() > 0;
}
