Magento – Getting New Session Id before session expires,checkout/session car is empty even cart has item

addtocartmagento-1.7sessionsingleton

I have a local module, which adds product to cart.To add to cart i have some conditional check before adding to cart,and i am using getSingleton('checkout/session')->getQuote() object for getting number of items in cart.

My code, initially checks number of items in cart in that session,by below code.

if(Mage::getSingleton('checkout/session')->getQuote()->hasItems())
{
}

adding Product to cart code,

$cart = Mage::getModel('checkout/cart');
$product = $this->_initProduct();
$related = $this->getRequest()->getParam('related_product');
$cart->addProduct($product, $params);
$cart->save();
$this->_getSession()->setCartWasUpdated(true);

My Question is , sometimes hasItems() returns false even my cart has products.

EDIT

I tried logging session_id(), an i found that this session_id changed unexpectedly. That means new session is created , so my cart is empty in this new session.

My Question?

I dont create any session in my code, then why new session is created before the session timeout?

Best Answer

You are calling checkout/session model in wrong way. It should be

 Mage::getSingleton('checkout/session');

So your condition will look like

if (Mage::getSingleton('checkout/session')->getQuote()->hasItems()) {
    //do your stuff here
}

Related Solutions

Magento – Add custom options while adding grouped product to cart

I found a solution which does not need an observer.

I had to do a rewrite to Mage_Sales_Model_Quote. More specific the method addProductAdvanced()

Bad news: You can not simply use parent::addProductAdvanced() and then do your own stuff. You have to copy the original code and fill it up with your code.

Here is what I did (look out for the comment starting with /********):

public function addProductAdvanced(Mage_Catalog_Model_Product $product, $request = null, $processMode = null) {
    if ($request === null) {
        $request = 1;
    }
    if (is_numeric ( $request )) {
        $request = new Varien_Object ( array (
                'qty' => $request 
        ) );
    }
    if (! ($request instanceof Varien_Object)) {
        Mage::throwException ( Mage::helper ( 'sales' )->__ ( 'Invalid request for adding product to quote.' ) );
    }

    $cartCandidates = $product->getTypeInstance ( true )->prepareForCartAdvanced ( $request, $product, $processMode );

    /**
     * Error message
     */
    if (is_string ( $cartCandidates )) {
        return $cartCandidates;
    }

    /**
     * If prepare process return one object
     */
    if (! is_array ( $cartCandidates )) {
        $cartCandidates = array (
                $cartCandidates 
        );
    }

    $parentItem = null;
    $errors = array ();
    $items = array ();
    foreach ( $cartCandidates as $candidate ) {
        // Child items can be sticked together only within their parent
        $stickWithinParent = $candidate->getParentProductId () ? $parentItem : null;
        $candidate->setStickWithinParent ( $stickWithinParent );
        $item = $this->_addCatalogProduct ( $candidate, $candidate->getCartQty () );

        /******** own modification for custom option GROUPSKU*/
        if($product->isGrouped()){
            $additionalOptions = array (
                    'options' => array (
                            'label' => 'GROUPSKU',
                            'value' => $product->getSku ()
                    )
            );
            $item->addOption ( new Varien_Object ( array (
                    'product' => $item->getProduct (),
                    'code' => 'additional_options',
                    'value' => serialize ( $additionalOptions )
            ) ) );
        }
        /******** own modification end*/

        if ($request->getResetCount () && ! $stickWithinParent && $item->getId () === $request->getId ()) {
            $item->setData ( 'qty', 0 );
        }
        $items [] = $item;

        /**
         * As parent item we should always use the item of first added product
         */
        if (! $parentItem) {
            $parentItem = $item;
        }
        if ($parentItem && $candidate->getParentProductId ()) {
            $item->setParentItem ( $parentItem );
        }

        /**
         * We specify qty after we know about parent (for stock)
         */
        $item->addQty ( $candidate->getCartQty () );

        // collect errors instead of throwing first one
        if ($item->getHasError ()) {
            $message = $item->getMessage ();
            if (! in_array ( $message, $errors )) { // filter duplicate messages
                $errors [] = $message;
            }
        }
    }
    if (! empty ( $errors )) {
        Mage::throwException ( implode ( "\n", $errors ) );
    }

    Mage::dispatchEvent ( 'sales_quote_product_add_after', array (
            'items' => $items 
    ) );

    return $item;
}

This way all the products that are added to the cart using a grouped product now have the custom option.

Magento – How to change product name in quote item dynamically

Take a look at Magento change product name adding to cart

Use event sales_quote_item_set_product

class Mynamespace_Samples_Model_Observer
{
    public function salesQuoteItemSetProduct(Varien_Event_Observer $observer)
    {
        /* @var $item Mage_Sales_Model_Quote_Item */
        $item = $observer->getQuoteItem();

        //only change the item you want by product id
        if($item->getProductId() == xyz){
            $item->setName('Ians custom product name');
        }

        return $this;
    }
}

Best Answer

Related Solutions

Magento – Add custom options while adding grouped product to cart

Magento – How to change product name in quote item dynamically

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