Add item to cart automatically when another product is present in magento cart

Question

I want to add item(one fix) to cart automatically when another product is present but quantity changes when main product quantity changed. Ex. if I add Product A with qty 1 in cart then product B with qty 1 will be add to cart same if I add Product A with qty 2 in cart then product B with qty 2. Please don't recommend any extension. Thanks

Shrikant Shrikant · Accepted Answer · 2016-09-29T08:41:01

You need to override cart controller. Register your module, then in your modules config.xml

<?xml version="1.0"?>
 <config>
   <modules>
     <Kreativ_Buynow>
       <version>1.0.0</version>
     </Kreativ_Buynow>
   </modules>
   <frontend>
    <routers>
        <checkout>
            <args>
                <modules>
                    <Kreativ_Buynow before="Mage_Checkout">Kreativ_Buynow</Kreativ_Buynow>
                </modules>
             </args>
        </checkout>
    </routers>
   </frontend>
 </config>

Then create CartController.php in controllers folder

require_once 'Mage/Checkout/controllers/CartController.php';
class Kreativ_Buynow_CartController extends Mage_Checkout_CartController{
 public function addAction(){ 

     foreach ($this->_getCart()->getQuote()->getAllItems() as $items) {
        if($items->getProductId() == 933){
            $value = $items->getQty();
            $prd = Mage::getModel('catalog/product')->load(943);
            $this->_getCart()->addProduct($prd,$value)->save();
            $this->_getSession()->setCartWasUpdated(true);
        }
     }
     return parent::addAction();
 }

Where I assumed if product with id 933 is present, then you are going to add product with id 943 in the cart.

Add item to cart automatically when another product is present in magento cart

1 Answers