/** * Returns the root node for a given scope * * @param int $scope Scope to determine which root node to return * @param PropelPDO $con Connection to use. * @return Causadiferido Propel object for root node */ public static function retrieveRoot($scope = null, PropelPDO $con = null) { $c = new Criteria(CausadiferidoPeer::DATABASE_NAME); $c->add(CausadiferidoPeer::LEFT_COL, 1, Criteria::EQUAL); $c->add(CausadiferidoPeer::SCOPE_COL, $scope, Criteria::EQUAL); return CausadiferidoPeer::doSelectOne($c, $con); }