How to get item id from quote item collection in Magento 2?

Question

I am trying to get all item ids currently added in cart. Here is what I have done so far.

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


public function afterAddProduct($subject, $productInfo, $requestInfo = null)
{
    $productInfo = $this->_cart->getQuote()->getItemsCollection();
    foreach ($productInfo as $item){
       echo $item->getProductId();
    }
}

But it is not returning anything. I have also used $item->getId(); but not avail.

Can anybody tell me what wrong I am doing.

Answer 1

Use

$productInfo = $this->_cart->getQuote()->getAllVisibleItems();

instead of

$productInfo = $this->_cart->getQuote()->getItemsCollection();

Answer 2

private $checkoutSession;

public function __construct(
    \Magento\Checkout\Model\Session\Proxy $checkoutSession
) {
    $this->checkoutSession = $checkoutSession;
}

public function getCartItemIds()
{
    $cartItems = $this->checkoutSession->getQuote()->getAllVisibleItems();
    foreach($cartItems as $cartItem) {
        echo $cartItem->getProductId(); //The entity_id of the product            
        echo $cartItem->getId(); //The entity_id of the cart item
    }
}

This should help you understand how to best interact with the cart, assuming you are accessing this in the frontend area.

Obtain the current checkoutSession by injecting a Proxy class for the Checkout\Model\Session class. This prevents the session being loaded during class construction, and defers loading until it is called in the getCartItemIds() method.

The checkoutSession->getQuote() method will return an instance of Magento\Quote\Model\Quote which has the getAllVisibleItems() method. This method returns items that have not been deleted from the cart, and which do not have a parent (configurable options).

Each cart item has a product_id and an entity_id. These two fields are different, as one is the identifier for the quote_item record and one is the entity_id of the catalog_product_entity record it relates to, as shown in the example.

Be sure to run bin/magento setup:di:compile to generate the Proxy class if needed.

Answer 3

Get quote by customer id :

public function getQuoteByCustomerId($customerId, $storeId){
    $quote = $this->_quoteFactory->create()->loadByCustomer($customerId);
    $quoteId = $quote->getId();
    if (!$quoteId) {
        $quote = $this->_quoteFactory->create()
            ->setStoreId($storeId)
            ->setIsActive(true)
            ->setIsMultiShipping(false)
            ->save();
        $quoteId = (int) $quote->getId();
        $customer = $this->_customerRepository
            ->getById($customerId);
        $quote->assignCustomer($customer);
        $quote->setCustomer($customer);
        $quote->getBillingAddress();
        $quote->getShippingAddress()->setCollectShippingRates(true);
        $quote->collectTotals()->save();
    }
    return $quote;
}

Get quote for guest :

public function createQuoteForNotLoggedInUser($storeId){
    $quote = $this->_quoteFactory->create()
        ->setStoreId($storeId)
        ->setIsActive(true)
        ->setIsMultiShipping(false)
        ->save();
    $quote->getBillingAddress();
    $quote->getShippingAddress()->setCollectShippingRates(true);
    $quote->collectTotals()->save();
    return $quote;
}

With _quoteFactory define by :

/**
* $_quoteFactory
*
* @var \Magento\Quote\Model\QuoteFactory
*/
protected $_quoteFactory;

You can get quoteId simple by code :

$quoteId = $quote->getId();