I am probably doing this all wrong!

I have a questionnaire which I have modelled as a page, ProgrammeLaunchPage

The form works as expected, validation is OK, and when a user submits the form a record is created in the ProgrammeLaunchPage_Live table

The problem is, the page is also added to the CMS, as a blank empty entry with no page type.

What I'd like: keep the records saving into the table, but don't have the rogue pages being created.

Here is the ProgrammeLaunchPage_Controller code I use to save the submitted form values:

    public function doSaveForm($data, $form) {

        $success = 1;

        try {
            $plp = new ProgrammeLaunchPage();
            $form->saveInto($plp);
            $plp->write();

        } catch (Exception $e) {
            $success = 0;
        }

        Director::redirect(Director::baseURL(). $this->URLSegment . '/?success=' . $success);
    }

Should I be saving into a custom database table instead? If so, how would I do that using sapphire? Many thanks

OK, I think I have worked it out:

I should have 2 classes: one sublcassed from Page (as I currently have) ,and one form DataObject. When I save it should be into the one from DataObject.

EDIT: yes, that solved it. Obvious when you think about it I suppose!