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<?php
namespace WebOfTalent\PrevNextSibling;
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Core\Extension;
class PrevNextSiblingExtension extends Extension
{
public function NextSibling()
$where = "\"ParentID\" = {$this->owner->ParentID} AND \"Sort\" > {$this->owner->Sort}";
$result = SiteTree::get()->where($where)->sort('"Sort"')->First();
return $result;
}
public function PreviousSibling()
$where = "\"ParentID\" = {$this->owner->ParentID} AND \"Sort\" < {$this->owner->Sort}";
return SiteTree::get()->where($where)->sort('"Sort" DESC')->First();
gordonbanderson /
prev-next-sibling
