How to prevent Magento 2.0 from emptying cart after failed payments

Question

How to prevent Magento 2.0 from emptying cart after failed payments?

I could find multiple solutions for this problem in Magento 1.X but could not find anything for 2.0

I am sure this must be a common issue with many Mangento 2.0 implementors.

Will be greatfull, if someone can suggest some solution for this problem.

Answer 1

I know in magento-1.9 version. sorry for this, if this is helps to you. try with following.

/app/code/core/Mage/Checkout/controllers/OnepageController.php this file is the actual controller file, but depends up on the payment method extensions it will change with Namespace/Modulename/Checkout/controllers/OnepageController.php

Find function saveOrderAction()

find these lines

$this->getOnepage()->getQuote()->save();
        /**
         * when there is redirect to third party, we don't want to save order yet.
         * we will save the order in return action.
         */
        if (isset($redirectUrl)) {
            $result['redirect'] = $redirectUrl;
        }

    $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));

comment this line //$this->getOnepage()->getQuote()->save(); and add below codes inside the if condition so the condition will look like ..

if (isset($redirectUrl)) {
            $result['redirect'] = $redirectUrl;
            $this->getOnepage()->getQuote()->setIsActive(1) ;
        }
    $this->getOnepage()->getQuote()->save();
   $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));

This is i have done with the third party Payment extension.

Answer 2

For Magento 2.3.5, Below is the solution. Please override Failure.php(Core file path: /vendor/magento/module-checkout/Controller/Onepage) and change public function as below

public function execute()
{
    
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $_checkoutSession = $objectManager->create('\Magento\Checkout\Model\Session');
    $_quoteFactory = $objectManager->create('\Magento\Quote\Model\QuoteFactory');
    
    $order = $_checkoutSession->getLastRealOrder();
    $quote = $_quoteFactory->create()->loadByIdWithoutStore($order->getQuoteId());
    if ($quote->getId()) {
        $quote->setIsActive(1)->setReservedOrderId(null)->save();
        $_checkoutSession->replaceQuote($quote);
        $resultRedirect = $this->resultRedirectFactory->create();
        $resultRedirect->setPath('checkout/cart');
        //$this->messageManager->addWarningMessage('Payment Failed.');
        return $resultRedirect;
    }
}