public function cancel()
{
$this->status = "cancelled";
$invitations = VCInvitation::model()->findAllByAttributes(array("videoconference_id" => $this->id));
foreach ($invitations as $inv) {
$invitee = User::model()->findByAttributes(array("id" => $inv->invitee_id));
VCInvitation::sendCancelNotification($this, $invitee->fname . " " . $invitee->lname, $invitee->email);
}
return $this->save();
}
