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Show error message when adding a product of price 0.

Sikha Goel 24 Feb 2017

To restrict products having price zero from shopping we need to create a observer on
checkout_cart_product_add_after event such that on every add to cart it will check the
product price and then add to cart.

Create a module and in etc/config.xml define the observer under event node.

Here Our module name is zeroprice under Letsknowit namespace.

File path : app/code/local/Letsknowit/zeroprice/etc/config.xml

 

       

           

               

                    singleton

                    zeroprice/observer

                    checkProductPrice

               

           

       

 

Now in Model folder we need to create observer with function name checkProductPrice.

File path : app/code/local/Letsknowit/zeroprice/Model/Observer.php

 

Class Letsknowit_Zeroprice_Model_Observer {

   

      public function checkProductPrice(Varien_Event_Observer $observer) {

        

        if ($observer->getProduct()->getFinalPrice() == 0) {

            Mage::getSingleton('core/session')->addError('Sorry, you cannot purchase "'.$observer->getProduct()->getName().'" product.Write to us if any query!'));

            $url = Mage::getModel('core/url')->getUrl('checkout/cart/index');

            Mage::app()->getResponse()->setRedirect($url);

            Mage::app()->getResponse()->sendResponse();

            exit();

        }

    }

 

}

?>

0   0
Sikha Goel
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This code snippet is a great implementation for preventing products with a price of zero from being added to the cart. It reminds me of the stickman hook game, where every move counts, and you need to avoid falling into traps! Just like in the game, we must ensure that our cart doesn't end up with "zero-value" products that could lead to a frustrating experience for users. Keep up the good work!

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