codeigniter login error message

extract($_POST); $user_id = $this-login_model-check_login($username,$password); if(! $user_id || $password){ $this-session-set_flashdata('login_error',TRUE); //does not add the non valid login to the session $this-form_validation-set_message('Sorry %s is not correct. tango 77 login '); redirect('admin'); }else{ $this-session-set_userdata('logged_in