magento2: what is difference between is_salable and is_in_stock?

Question

I am confused between is_salable and is_in_stock field. in product listing page I print $product object by $product->getData() and when I print this data there is a field called is_salable I put somewhere condition for product isinstock or outof stock so can I check the product with like this condition $product->getIsSalable() ?

Your help would be appreaciated

Answer 1

is_in_stock uses the status on the product, so you can change the stock status to out of stock, but still have qty available.

is_saleable is heavily used for grouped, bundle and configurable products and uses the event catalog_product_is_salable_after to return availability

Answer 2

Looking at the Magento core code

\Magento\Catalog\Model\Product::getIsSalable

The logic of the function says that if getIsSalable function exits or product has a value as is_saleable then the product is able to be purchased.

/**
     * Is product salable detecting by product type
     *
     * @return bool
     * @SuppressWarnings(PHPMD.BooleanGetMethodName)
     */
    public function getIsSalable()
    {
        $productType = $this->getTypeInstance();
        if (method_exists($productType, 'getIsSalable')) {
            return $productType->getIsSalable($this);
        }
        if ($this->hasData('is_saleable')) {
            return $this->getData('is_saleable');
        }

        return $this->isSalable();
    }

However, in this Magento Stackexchange, are some better explanation for what you are looking for: Differences between some stock methods