Solved: Ajax cart update won't work second time

tvgarden · ‎04-12-2018

I have created a custom module to display a form to update custom options on Cart. The code works when I created a button, however with Ajax it doesn't work second time. It seems it's not updating custom options in back end. Only prices are updated. So Ajax call works only once, second time it does not work. Is there any suggestions to update custom options values?

public function execute()
    {

        $this->_objectManager->get(\Psr\Log\LoggerInterface::class)->addInfo("execute");
          /** @var \Magento\Framework\Controller\Result\Json $resultJson */
      
        if (!$this->_formKeyValidator->validate($this->getRequest())) {
         //   return $this->resultRedirectFactory->create()->setPath('*/*/');
        }
   
        $updateAction = (string)$this->getRequest()->getParam('update_cart_action');
    

        switch ($updateAction) {
            case 'empty_cart':
                $this->_emptyShoppingCart();
       
            break;
            case 'update_qty':
                $this->_updateShoppingCart();
             
            break;
            case 'update_ajax_options':     
      
            $this->_updateShoppingCart();
            return $this->_getTotalsHtml();
            break;     
            default:
                $this->_updateShoppingCart();
             
        }
        return $this->_goBack();
    }
 

 protected function _getTotalsHtml()
    {

        $response2 = $this->resultFactory->create(ResultFactory::TYPE_PAGE);
        $layout = $response2->addHandle('checkout_cart_index')->getLayout();
        $response['cartcontent'] = $this->_view->getLayout()->getBlock('checkout.cart.form')->toHtml();
        $response['checkout_method'] = $this->_view->getLayout()->getBlock('checkout.cart.methods.bottom')->toHtml();
        $response['page_messages'] = $this->_view->getLayout()->getBlock('checkout.cart.validationmessages')->toHtml();
       // $response['cart_item'] = $this->_view->getLayout()->getBlock('checkout.cart.item')->toHtml();
        $response['content'] = $layout->renderNonCachedElement('checkout.cart.empty');
        $cartQuote= $this->cart->getQuote()->setTotalsCollectedFlag(false)->collectTotals();
        $response['subtotaldata'] = $this->_objectManager->create('Magento\Checkout\Model\DefaultConfigProvider')->getConfig();
        $resultJson = $this->resultFactory->create(ResultFactory::TYPE_JSON);
        $resultJson->setData($response);
        
        
        $this->_checkoutSession->getQuote()->collectTotals()->save();
        
        return $resultJson;

    
}
    protected function  _updateAjaxOptions(){
        $this->_objectManager->get(\Psr\Log\LoggerInterface::class)->addInfo("_updateAjaxOptions");
        $this->_updateShoppingCart();
       
        return;
 
    }
 protected function _updateShoppingCart()
    {

        $this->_objectManager->get(\Psr\Log\LoggerInterface::class)->addInfo("_updateShoppingCart");
  
        try {
            $cartData = $this->getRequest()->getParam('cart');
   
            $this->_checkoutSession->setMyValue($cartData);

            if (is_array($cartData)) {
                $filter = new \Zend_Filter_LocalizedToNormalized(
                    ['locale' => $this->_objectManager->get(
                        \Magento\Framework\Locale\ResolverInterface::class
                    )->getLocale()]
                );
                foreach ($cartData as $index => $data) {
                    if (isset($data['qty'])) {
                        $cartData[$index]['qty'] = $filter->filter(trim($data['qty']));
                    }
                }
                if (!$this->cart->getCustomerSession()->getCustomerId() && $this->cart->getQuote()->getCustomerId()) {
                    $this->cart->getQuote()->setCustomerId(null);
                }
        
                $cartData = $this->cart->suggestItemsQty($cartData);
                $this->cart->updateItems($cartData)->save();

                $this->_reloadCart();

                $this->_checkoutSession->setMyValue($cartData);
                
            }
        } catch (\Magento\Framework\Exception\LocalizedException $e) {
            $this->messageManager->addError(
                $this->_objectManager->get(\Magento\Framework\Escaper::class)->escapeHtml($e->getMessage())
            );

        } catch (\Exception $e) {
            $this->messageManager->addException($e, __('We can\'t update the shopping cart.'));
            $this->_objectManager->get(\Psr\Log\LoggerInterface::class)->critical($e);
   
        }
    
    }