public function acceptInvitation()
 {
     if (Efiwebsetting::getData('checkOAuth') == 'yes') {
         IMBAuth::checkOAuth();
     }
     $json = array();
     $json['status_code'] = 1;
     $id_invitation = Generic::mustCheck($_GET['id_invitation'], "NO ID User found!");
     if (!$id_invitation) {
         Generic::errorMsg("NO ID Invitation found!");
     }
     $objInvitation = new InvitationModel();
     $objInvitation->getByID($id_invitation);
     $objInvitation->status = 1;
     $objInvitation->load = 1;
     $id = $objInvitation->save();
     if ($id != "") {
         $json['status_code'] = 1;
         $json['status_message'] = "Link is activate!";
     } else {
         $json['status_code'] = 0;
         $json['status_message'] = "Link is expired!";
     }
     echo json_encode($json);
     die;
 }