configurable-productmagento-1.7
An order with a configurable product.
foreach ($order->getAllItems() as $item) {
echo $item->getSku();
}
There're two items. But they have same sku! How did happen? And anyway for each item get it own sku (from configurable and its child product)?
Check for spaces in the SKU field of your custom options:
See Mage_Catalog_Model_Product_Type_Abstract::getOptionSku() for the reason why.
Given $_product is your configurable product, use:
$_firstSimple = $_product->getTypeInstance()
->getUsedProductCollection() // collection of associated products
->addAttributeToSelect('sku') // - with SKU attribute
->setPageSize(1) // - limit to one row
->getFirstItem(); // - load and return first row
Best Answer
In Magento when you add configurable products into cart it would have the same sku as simple product that was actually added. Anyway every product should have its own unique SKU (or it can be generated dynamically for bundle products for example) More info can be found here
To avoid this situation you need to use
getAllVisibleItemsmethod instead. So your code will beThe difference between them is that
getAllVisibleItems()has an additional check inside the method for every item of an order!$item->getParentItemId()It tests if the product in order has a parent product (it will give you a result without simple products for configurable, bundle etc.)