Magento 2 – How to Change Item Custom Option in Cart

cartcustom-optionsmagento2quote

I have products with custom options.
One of these products options must be updated just after product has been added to cart.

I then created an event launched just after checkout_cart_add_product_complete.

My observer is well called :

public function execute(\Magento\Framework\Event\Observer $observer) {

    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $cart = $objectManager->get('\Magento\Checkout\Model\Cart');
    $items = $cart->getQuote()->getAllItems();

    foreach ($items as $item)
    {
        $options = $item->getProduct()->getTypeInstance(true)->getOrderOptions($item->getProduct());
        $customOptions = $options['options'];
        if (!empty($customOptions)) 
        {
            foreach ($customOptions as $key=>$option) 
            {
                if ($option['label']=="foo") 
                {
                    $customOptions[$key]['value']="bar";
                }
            }

            $item->setProductOptions($customOptions);
            $item->save();
        }
    }
}

But when Cart is displayed, the product option has not been changed.

Thank you for your help,

Best Answer

        public function __construct(
                ...
                \Magento\Checkout\Model\Cart $cart
                ) 
        {
            ...
            $this->_cart=$cart;
        }

    public function execute(\Magento\Framework\Event\Observer $observer) {

        $items = $this->_cart->getquote()->getAllItems();

        foreach ($items as $item)
        {
            $options = $item->getProduct()->getTypeInstance(true)->getOrderOptions($item->getProduct());
            $customOptions = $options['options'];
            if (!empty($customOptions)) 
            {
                foreach ($customOptions as $key=>$option) 
                {
                    if ($option['label']=="foo") 
                    {
                        $OptionID=$option['option_id'];
                        $this->_cart->getquote()->getItemById($item->getItemId())->getOptionByCode('option_'.$OptionID)->setValue("bar");
                        break;
                    }
                }
                $buyreqTab=$this->serializer->unserialize($this->_cart->getquote()->getItemById($item->getItemId())->getOptionByCode('info_buyRequest')->getValue());
                $buyreqTab['options'][$OptionID]="bar";
                $this->_cart->getquote()->getItemById($item->getItemId())->getOptionByCode('info_buyRequest')->setValue($this->serializer->serialize($buyreqTab));
            }
            $this->_cart->save();

        }
    }

i tried it but it does not reflects in quote_item_options table

Related Solutions

Magento – Modifying custom options of an item when adding it to the cart

You could write an observer for the event catalog_product_type_prepare_full_options instead, which is the last event in the add to cart process before the product is actually added to the cart and after the custom options are prepared.

In the observer you have the following parameters available:

transport: Transport object for all custom options, so you can change tehem in the observer. transport->options is an array in the form option_id => option_value. Attention, transport itself is a stdClass object, not an instance of Varien_Object, as you might expect. So there are no getter and setter methods for transport->options.
product: The product that will be converted to a quote item later on.
buy_request: The buyRequest object, you can read it here and still modify it as well. It's a Varien_Object that contains amongst others:
- product: The product id
- options: Array of custom options in the form:
```
option_id => value
```

Source and more info: info_buyRequest reference

So your observer might look like this:

$transport = $observer->getTransport();
if (isset($transport->options[OPTION_A_ID]) && $transport->options[OPTION_A_ID] == 1) {
    $transport->options[OPTION_A_ID] = 4;
}

$buyRequest= $observer->getBuyRequest();
$buyRequestOptions = $buyRequest->getOptions();
if (isset($buyRequestOptions[OPTION_A_ID]) && $buyRequestOptions[OPTION_A_ID] == 1) {
    $buyRequestOptions[OPTION_A_ID] = 4;
}
$buyRequest->setOptions($buyRequestOptions);

The first part (changing $transport) is relevant to actually change the value of option OPTION_A_ID. The second part (changing $buyRequest) is optional, it will just delete all traces of the value that the customer selected and if he reorders the order, the new value will be immediately selected because the buy request gets "executed" with the changed parameters. You have to decide, if that's what you want.

Retrieve Quote Item ID After Added to Cart – Magento 1.9

So based on what you said I have now got a solution that I belive works 100% of the time and matched the items nicely.

When merging there are 3 things that can happen.

When the item is in both quotes it's qty is merged into the logged in customers item.
When the item is in the guest quote but not the logged in customer quote a new item is cloned into the logged in customer quote, and the item_id is added at some later time (that I couldn't pin point)
The item is in just the logged in customer quote nothing changes.

Because the for the first two possibilitys the item is in both the quotes I used the compare function to find when the items matched and populated the newIds and OriginalIds at that point.

We can then say if there was no match this item was not in the guest quote so just use the newId as there was no originalId.

protected $_source;

/**
 * @param Varien_Event_Observer $observer
 * @return Training_Merge_Model_Observer
 */
public function salesQuoteMergeAfter(Varien_Event_Observer $observer)
{
    $this->_source = $observer->getEvent()->getSource();
}

public function controllerFrontSendResponseAfter(Varien_Event_Observer $observer){
    if($this->_source) {
        $newOldArray = array();

        //Quote = Customer Quote
        //Source = Guest Quote
        $quote = Mage::getSingleton('checkout/session')->getQuote();
        $source = $this->_source;

        foreach ($source->getAllVisibleItems() as $item) {
            foreach ($quote->getAllItems() as $quoteItem) {
                if ($quoteItem->compare($item)) {

                    $newId = $quoteItem->getData('item_id');
                    $originalId = $item->getData('item_id');

                    $newOldArray[] = array(
                        "newId" => $newId,
                        "originalId" => $originalId
                    );

                    $quoteItem->setIsMatch(1);

                }
            }
        }

        //If there was no match so far then it's a new item and there was
        //no similar item in the old quote, we can therefore just take the
        //newId and set the original to null
        foreach ($quote->getAllItems() as $quoteItem) {
            if (!$quoteItem->getIsMatch()) {
                $newId = $quoteItem->getData('item_id');

                $newOldArray[] = array(
                    "newId" => $newId,
                    "originalId" => null
                );

            }
        }
    }


    return $this;
}

Best Answer

Related Solutions

Magento – Modifying custom options of an item when adding it to the cart

Retrieve Quote Item ID After Added to Cart – Magento 1.9

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