$r->model_class($r->class_of($r->{table}));
my $status = $r->is_applicable;
return $status unless $status == OK;
$status = $r->call_authenticate;
return $status unless $status == OK;
$r->additional_data();
$r->model_class($r->class_of($r->{table}));
my $status = $r->is_applicable;
return $status unless $status == OK;
$status = $r->call_authenticate;
return $status unless $status == OK;
$r->additional_data();