/** * Determines if the node has previous sibling * * @param PropelPDO $con Connection to use. * @return bool */ public function hasPrevSibling(PropelPDO $con = null) { if (null === $this->hasPrevSibling) { sfAssetFolderPeer::hasPrevSibling($this, $con); } return $this->hasPrevSibling; }