Magento 2: Programmatically Updating Inventory

Question

In the following code, I am able to store all the information with the exclusion of the stock data. Has something changed in Magento 2?

public function __construct(
    ScopeConfigInterface $scopeConfig, CollectionFactory $product,
    Magento\Catalog\Api\ProductRepositoryInterface $productRepository
) {
    $this->scopeConfig = $scopeConfig;
    $this->product = $product;
    $this->productRepository = $productRepository;
}

public function update(\XXXXXX\XXXXXX\Api\Data\InventoryCollectionInterface $data) {
    foreach ($data['list'] as $d) {
        $product = $this->productRepository->getById($d['entity_id']);
        $product->setStatus(($d['quantity'] > 0 ? 1 : 0));
        $product->setUpc($d['upc']);
        $product->setStockData(array(
            'qty' => $d['quantity'],
            'is_in_stock' => ($d['quantity'] > 0 ? 1 : 0)
        ));

        $this->productRepository->save($product);
    }

    return "Done";
}

Answer 1

This works for me:

$item = ['qty' => 11]; // For example
$product->setStockData(['qty' => $item['qty'], 'is_in_stock' => $item['qty'] > 0]);
$product->save();

Edit:

This is no longer the correct way to handle this, because $product->save() is deprecated since Magento 2.1. The correct way to do this is by using the StockRegistryInterface:

/**
 * @var StockRegistryInterface
 */
protected $stockRegistry;

/**
 * Inventory constructor.
 * @param StockRegistryInterface $stockRegistry
 */
public function __construct(
    StockRegistryInterface $stockRegistry
)
{
    $this->stockRegistry = $stockRegistry;
    parent::__construct();
}

With the above code, you can use the following:

$sku = 'ABC123';
$qty = 10;
$stockItem = $this->stockRegistry->getStockItemBySku($sku);
$stockItem->setQty($qty);
$this->stockRegistry->updateStockItemBySku($sku, $stockItem);

Use Managers as much as possible. Keep your modules decoupled from each other.

It's The Magento Way™

Answer 2

If you are using the @giel-berkers solution, you may need to set isInStock also, because it will not be automatically sets. So, the following code was useful for me:

public function __construct(
    \Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry
)
{
    $this->stockRegistry = $stockRegistry;
    parent::__construct();
}

public function yourMethod() {
    $sku = 'ABC123';
    $qty = 10;
    $stockItem = $this->stockRegistry->getStockItemBySku($sku);
    $stockItem->setQty($qty);
    $stockItem->setIsInStock((bool)$qty); // this line
    $this->stockRegistry->updateStockItemBySku($sku, $stockItem);
}

Answer 3

I struggled with this same issue. While debugging I found that the product data has a quantity_and_stock_status array, so I tried setting it with:

$product->setQuantityAndStockStatus(['qty' => $quantity, 'is_in_stock' => 1]);

and it started working for me. I still am setting the $product->setStockData too if you edit a product and inspect element on the fields you'll see it has both, one is on the general tab, the other on the advanced inventory fields. I have not fully investigated why there are 2 of them.

Answer 4

One thing the other answers missed is that if you setQty($qty), it will apply the exact value you provide. But if a sale was made for that product a moment before your save, the original qty could have changed. So what you really want to do is tell Magento the difference you want to apply to the qty.

Fortunately, Magento 2 provides a nice mechanism for this. Take a look at Magento\CatalogInventory\Model\ResourceModel\Stock\Item:

protected function _prepareDataForTable(\Magento\Framework\DataObject $object, $table)
{
    $data = parent::_prepareDataForTable($object, $table);
    $ifNullSql = $this->getConnection()->getIfNullSql('qty');
    if (!$object->isObjectNew() && $object->getQtyCorrection()) {
        if ($object->getQty() === null) {
            $data['qty'] = null;
        } elseif ($object->getQtyCorrection() < 0) {
            $data['qty'] = new \Zend_Db_Expr($ifNullSql . '-' . abs($object->getQtyCorrection()));
        } else {
            $data['qty'] = new \Zend_Db_Expr($ifNullSql . '+' . $object->getQtyCorrection());
        }
    }
    return $data;
}

Here we see that if you set the qty_correction value, it will apply the difference incrementally instead of applying an exact amount.

So my suggestion for a safer qty save is this:

/**
 * @var \Magento\CatalogInventory\Api\StockRegistryInterface
 */
protected $stockRegistry;

public function __construct(StockRegistryInterface $stockRegistry)
{
    $this->stockRegistry = $stockRegistry;
}

/**
* Set the quantity in stock for a product
*
*/
public function applyNewQty($sku, $newQty)
{
    $stockItem = $this->stockRegistry->getStockItemBySku($sku);
    $origQty = $stockItem->getQty();
    $difference = $newQty - $origQty;
    $stockItem->setQtyCorrection($difference);
    $this->stockRegistry->updateStockItemBySku($sku, $stockItem);

    // note that at this point, $stockItem->getQty() is incorrect, so you'll need to reload if you need that value
}

Answer 5

$objectManager = $bootstrap->getObjectManager();
$stockRegistry = $objectManager->create('Magento\CatalogInventory\Api\StockRegistryInterface');

$stockItem = $stockRegistry->getStockItemBySku($sku);
$stockItem->setQty($qty);
$stockItem->setIsInStock((bool)$qty);
$stockRegistry->updateStockItemBySku($sku, $stockItem);

Answer 6

Magento2 also come up with Multi stock feature so to update on particular stock source you can follow this solution

https://magento.stackexchange.com/questions/272296/how-to-set-qty-to-product-on-msi-magento-2-3

Answer 7

Below code is working fine for me to update product qty,

public function __construct(
    \Magento\Catalog\Model\ProductFactory $productFactory
) {
    $this->productFactory = $productFactory;
}

public function updateQty(){
    $sku = '24-mb01';
    $product = $this->productFactory->create();
    $productId = $product->getIdBySku($sku);
    if($productId){
        $product->load($productId);
    }

    $product->setStockData(
        array(
            'use_config_manage_stock' => 0,
            'manage_stock' => 1,
            'is_in_stock' => 1,
            'qty' => 10
        )
    );

    try {
        $product->save(); 
        echo $sku.' updated. '; 
    } catch (Exception $e) {
        echo $e->getException();
    }
}

Answer 8

If you're planning to do this as a mass update for a list of skus and qtys, everyone here has missed on key aspect to setProcessIndexEvents(false);

Code to prevent "The stock item was unable to be saved. Please try again" error would be as follows

$allrecords = []; // Your array of records that need to be updated

foreach ($allrecords as $record) {

  $sku = $record['sku'];
  $qty = $record['qty'];

    try {
            $stockItem = $this->stockRegistry->getStockItemBySku($sku);
        } catch (\Magento\Framework\Exception\NoSuchEntityException $e){
            $stockItem = false;
        }

   if(!$stockItem) continue;

        /* SET STOCK LEVEL */
   $stockItem->setQty($qty);
   /* PREVENT The stock item was unable to be saved. Please try again */
   $stockItem->setProcessIndexEvents(false);  
   $stockItem->setIsInStock((bool)$qty);
   $this->stockRegistry->updateStockItemBySku($sku, $stockItem);
}

Doing this prevents the need to turn your indexes to scheduled only and can be left on update on save.

Answer 9

you can use product repository to update:

use Magento\Catalog\Api\ProductRepositoryInterface as ProductRepositoryInterface;

$product = $this->productRepository->getById($productId);

$availableQty = $product->getExtensionAttributes()->getStockItem->setQty($updateQty)->setIsInStock(true);

$this->productRepository->save($product);

Answer 10

Try to set StoreId to $product before all, and maybe replace:

$product->setStockData(...) for $product->setData('stock_data', '...') // A Paranoid Recommendation

BTW If you look the Save ActionController at the backend M2 uses a filter for prepare stock_data you could find that filter in:

Magento\Catalog\Controller\Adminhtml\Product\Initialization\StockDataFilter

Answer 11

Try this, while saving the product in admin, they saved inventory data by using event catalog_product_save_after in Magento_CatalogInventory module observer

Magento\CatalogInventory\Observer\SaveInventoryDataObserver

Answer 12

I had same issue for magento 2.0.9 and following code is working in my case

$productStock = $this->_productRepository->getById($item->getMageproductId());
$productStock->setQuantityAndStockStatus(['qty' => 12, 'is_in_stock' => 1]);
$res = $productStock->save();