vb_datamanager_forum bitfield options

[scoutz]

I'm trying to set the bitfield options for a script im writing that creates new forums from non-vb pages.

PHP Code:

$userdata =& datamanager_init('Forum', $vbulletin, ERRTYPE_SILENT); 

$userdata->set('title', $serie['name']); 
$userdata->set('title_clean', $serie['name']); 
$userdata->set('description', 'Discuss the '.$serie['name']); 
$userdata->set('description_clean', 'Discuss the '.$serie['name']; 
$userdata->set('parentid', $forumnumber);

//this does not work
$vars = array('active' => 1);
$userdata->set('options', $vars); 

$userdata->save();
unset($userdata); 


I'm trying to set the options data which I want to be set at 97991 (Act as Forum=1, Forum is Active =1, Forum is Open =1,Index New Posts=1 etc.).

I've tried several values for the options field, nothing worked.

As described in the class_dm_forum.php datamanager class for forum.

PHP Code:

    var $validfields = array(
        'options'           => array(TYPE_ARRAY_BOOL, REQ_AUTO), 


Anyone knows how to get the options bitfield working here?

Kind regards,

vincent