public function inserir(Cidade &$obj)
{
$this->con->executar("INSERT INTO " . Sistema::$BDPrefixo . $this->tabela . "(" . self::PAIS . ", " . self::ESTADO . ", " . self::NOME . ", " . self::DDD . ") VALUES('" . $obj->getPais()->getId() . "','" . $obj->getEstado()->getId() . "','" . $obj->nome . "','" . $obj->ddd . "')");
$id = $this->con->getId();
$class = __CLASS__;
$l = new $class();
$l->condicoes('', $id, self::ID);
$obj = $l->listar();
}