Brief Introduction: I am trying to make custom rest api's for magento. To add a product in customer's cart, I followed following steps:

1) Log In customer(code):

public function loginUser( $email, $password){
         require_once ("app/Mage.php");
         Mage::getSingleton("core/session", array("name" => "frontend"));

      //   $websiteId = Mage::app()->getWebsite()->getId();
         $store = Mage::app()->getStore();
         $customer = Mage::getModel("customer/customer");
         $customer = Mage::getModel('customer/customer')->setWebsiteId(1);
         try {
             $session = Mage::getSingleton('customer/session')->setCustomerAsLoggedIn($customer);
             $session->login($email, $password);
          }catch(Exception $e){


2) To add product to customer's cart(code):

$id = '1'; 
$qty = '1';
$_product = Mage::getModel('catalog/product')->load($id);
$cart = Mage::getModel('checkout/cart');
$cart->addProduct($_product, array('qty' => $qty));

3) Logout Customer:


Problem: After Login I added a product into cart, it successfully added in corresponding customer's cart after that I logged out and then added a product to cart as a guest but the product was added in same(previous) QUOTE_ID and then again logged in from different account(not previous customer) and again I added a product and it again added in same QUOTE_ID. The Resultant carts of both user's are like this:

customer1: 3 products
customer2: 3 products

But they should be like this:

customer1: 1 product
customer2: 2 product

To Remove quote id, in logout I add reserveOrderId to null(generally it is used after checkout) but no solution:


For more Information:

  • customer_id = 1 and quote_id = 5 returns after 1st add(Got customer ID from session)

  • customer_id = null and quote_id = 5 returns after 2nd add(after logout)

  • customer_id = 2 and quote_id = 5 returs after 3rd add(logged in from different account)

1 Answer 1


To reset the quote either of the following should work.



QuoteId is checked if not empty when called on. If empty (null) a new one is generated which would return a new quote.

  • Sander I almost got the solution using cart = Mage::getModel('checkout/session')->getQuote(); with help of this I am able to get previous quote_id but it creates problem when I fetch cart products, the products price and subtotal is showing null.
    – Pushpendra
    May 22, 2015 at 12:15

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