Empty Cart on abandoned cart

Question

Would it be possible to automatically empty Magento cart if someone abandoned the cart? Basically we do not want customers to have the previous cart items stay in cart once they left the site or logout from the site.

Answer 1

You have to clear the cart at the time of logout. And for this you have to write a custom module that will have observe customer_logout event and execute the following code

<global>
    <events>
      <customer_logout> 
         <observers>
          <customer_logout_handler> 
            <type>model</type> 
            <class>modulename/observer</class> 
            <method>clearCartAtLogout</method>  
          </customer_logout_handler>
        </observers>
      </customer_logout>
    </events>
  </global>

foreach(Mage::getSingleton("checkout/session")->getQuote()->getItemsCollection) as $item ){ Mage::getSingleton("checkout/cart")->removeItem( $item->getId() )->save(); }

And for guest user you can use this setting : Admin => system => Configuration => Sales => Checkout => Quote Lifetime (days)