public static function addSubscriptions(Order $objOrder, $arrTokens)
 {
     $strEmail = $objOrder->getBillingAddress()->email;
     $objAddress = $objOrder->getShippingAddress() ?: $objOrder->getBillingAddress();
     $arrItems = $objOrder->getItems();
     $objSession = \Session::getInstance();
     if (!($intModule = $objSession->get('isotopeCheckoutModuleIdSubscriptions'))) {
         return true;
     }
     $objSession->remove('isotopeCheckoutModuleIdSubscriptions');
     $objModule = \ModuleModel::findByPk($intModule);
     foreach ($arrItems as $item) {
         switch ($objModule->iso_direct_checkout_product_mode) {
             case 'product_type':
                 $objFieldpalette = FieldPaletteModel::findBy('iso_direct_checkout_product_type', Standard::findAvailableByIdOrAlias($item->product_id)->type);
                 break;
             default:
                 $objFieldpalette = FieldPaletteModel::findBy('iso_direct_checkout_product', $item->product_id);
                 break;
         }
         if ($objFieldpalette !== null && $objFieldpalette->iso_addSubscription) {
             if ($objFieldpalette->iso_subscriptionArchive && (!$objFieldpalette->iso_addSubscriptionCheckbox || \Input::post('subscribeToProduct_' . $item->product_id))) {
                 $objSubscription = Subscription::findOneBy(array('email=?', 'pid=?', 'activation!=?', 'disable=?'), array($strEmail, $objFieldpalette->iso_subscriptionArchive, '', 1));
                 if (!$objSubscription) {
                     $objSubscription = new Subscription();
                 }
                 if ($objFieldpalette->iso_addActivation) {
                     $strToken = md5(uniqid(mt_rand(), true));
                     $objSubscription->disable = true;
                     $objSubscription->activation = $strToken;
                     if (($objNotification = Notification::findByPk($objFieldpalette->iso_activationNotification)) !== null) {
                         if ($objFieldpalette->iso_activationJumpTo && ($objPageRedirect = \PageModel::findByPk($objFieldpalette->iso_activationJumpTo)) !== null) {
                             $arrTokens['link'] = \Environment::get('url') . '/' . \Controller::generateFrontendUrl($objPageRedirect->row()) . '?token=' . $strToken;
                         }
                         $objNotification->send($arrTokens, $GLOBALS['TL_LANGUAGE']);
                     }
                 }
                 $arrAddressFields = \Config::get('iso_addressFields');
                 if ($arrAddressFields === null) {
                     $arrAddressFields = serialize(array_keys(static::getIsotopeAddressFields()));
                 }
                 foreach (deserialize($arrAddressFields, true) as $strName) {
                     $objSubscription->{$strName} = $objAddress->{$strName};
                 }
                 $objSubscription->email = $strEmail;
                 $objSubscription->pid = $objFieldpalette->iso_subscriptionArchive;
                 $objSubscription->tstamp = $objSubscription->dateAdded = time();
                 $objSubscription->quantity = \Input::post('quantity');
                 $objSubscription->order_id = $objOrder->id;
                 $objSubscription->save();
             }
         }
     }
     return true;
 }