/**
* @param $member
* @param $category_id
* @throws ValidationException
* @throws null
*/
public static function addChair($member, $category_id)
{
$priorChair = SummitTrackChair::get()->filter('MemberID', $member->ID)->first();
$category = PresentationCategory::get()->byID($category_id);
if (!$priorChair) {
$chair = new self();
$chair->MemberID = $member->ID;
$chair->write();
$chair->Categories()->add($category);
//Find or create the 'track-chairs' group
if (!($Group = Group::get()->filter('Code', 'track-chairs')->first())) {
$Group = new Group();
$Group->Code = "track-chairs";
$Group->Title = "Track Chairs";
$Group->Write();
$member->Groups()->add($Group);
}
//Add member to the group
$member->Groups()->add($Group);
return $chair->ID;
} else {
$priorChair->Categories()->add($category);
$priorChair->Member()->addToGroupByCode('track-chairs');
return $priorChair->ID;
}
}
