Magento bug – Checkout cart 500 error – Redirect loops

/**

     * Validate a condition with the checking of the child value

     * @param Varien_Object $object

     *

     * @return bool

     */

    public function validate(Varien_Object $object)

    {

        /** @var Mage_Catalog_Model_Product $product */

        $product = $object->getProduct();

        if (!($product instanceof Mage_Catalog_Model_Product)) {

            $product = Mage::getModel('catalog/product')->load($object->getProductId());

        }

        $valid = parent::validate($object);

        /* Kalpesh commented whole block, as it causes redirect loop and Segmentation fault in apache

        if (!$valid && $product->getTypeId() == Mage_Catalog_Model_Product_Type_Configurable::TYPE_CODE) {

            $children = $object->getChildren();

            //$valid = $children && $this->validate($children[0]); //Kalpesh commented, issue....

        }*/

        return $valid;

    }

13 Comments

• 
  Decoder November 28, 2015 at 3:28 am

  You saved my ass with this one!! Thank you kalpesh!!!

  Reply
• 
  Tim December 3, 2015 at 5:40 pm

  Hi,

  Thank you for this fix, I spent a few hours trying to work out what was wrong before finding this post.

  I have just discovered though, that by using this fix, it breaks the free shipping rule, have you come across this? I am using the WebShopApps ProductMatirx.

  Cheers,
  Tim

  Reply
• 
  janw.oostendorp March 24, 2016 at 11:23 am

  There is a patch for this
  https://gist.github.com/piotrekkaminski/54529dadb0bc01a62a2d

  It is marked for EE but the fix worked for us.

  app/code/core/Mage/SalesRule/Model/Rule/Condition/Product/Subselect.php
  
- if (parent::validate($item)) {
+ if (Mage_Rule_Model_Condition_Combine::validate($item)) {


  Reply
  • 
    pavlos July 1, 2016 at 7:49 am

    That worked for me on CE 1.9.2.0!
    Thanks!!!!

    Reply
  • 
    Gulshan Maurya July 28, 2016 at 7:06 am

    This saved my time. Worked great.

    Thanks For Posting.

    Reply
• 
  Franz ludilabel September 28, 2016 at 3:46 pm

  Hi,

  Thanks for taking the time to post this.
  It worked on CE 1.9.2.1 🙂

  Reply
• 
  vishal November 11, 2016 at 5:52 am

  Solution not working for Magento version 1.9.2.2. Specifically for “Confugurable” products. dont know its a magento default bug or some specially third party bug. we have install all the latest “SUPEE” patches aswell. Still issue persist.

  Reply
• 
  Chris January 9, 2017 at 5:42 am

  Dude, took me hours of googling to finally find this answer. Fantastic solution, built off of that other solution by Phil on magentoexchange that didn’t quite work. My only question is by removing this block could this mess up validation or do any unintended consequences?

  Thanks!

  Reply
  • 
    kalpesh June 25, 2017 at 12:40 am

    AFAIK I didn’t had any issue, but I would still recommend to do proper testing before making the change on production.

    Reply
• 
  gautam June 24, 2017 at 10:57 am

  Hi kalpesh,

  I need your help can you please check my website where when I click add to cart button its display 500 error.

  Website link: https://www.originalswat.com/

  Reply
  • 
    kalpesh June 25, 2017 at 12:34 am

    Hi gautam. It’s impossible to know what the problem is without looking at the server error log. If using apache, it should be probably at /var/log/httpd/error_log or /var/log/apache2/error.log

    Reply
• 
  pfinley January 25, 2018 at 7:15 pm

  Thank you. This helped us.

  Reply
• 
  Arbnor September 13, 2018 at 3:12 pm

  Hello,
  I’m using magento 2.2.3 end I have an error while configuring a shopping Cart Price Rule.
  I’m getting an error: HTTP ERROR 500
  Error Log:
  [2018-09-13 13:42:14] main.DEBUG: cache_invalidate: {“method”:”GET”,”url”:”https://wotoks.com/admin_1u2y0c/sales_rule/promo_quote/index/key/4665a9eda97686c991acbb14c5eb226e9b3c167e2b9ea1e03b3b893d555ec937/”,”invalidateInfo”:{“tags”:[“interception”,”CONFIG”],”mode”:”matchingTag”}} []

  Thank you for your help

  Reply