How can I change product name to product sku in qtyincrements.phtml?

Question

On our item page we have a block that says "product name is available for purchase in increments of amount" I would like to change product name to product sku. Here is how the original code looks ...

<?php if ($this->getProductQtyIncrements()) : ?>
<div class="product-pricing">
    <?php echo $this->__('%s is available for purchase in increments of %s', $this->getProductName(), $this->getProductQtyIncrements()) ?>
</div>
<?php endif ?>

I tried changing $this->getProductName() to $this->getProductSku() or to $this->getSku() and nothing shows up. What am I missing?

Answer 1

In Mage_CatalogInventory_Block_Qtyincrements is no function that can do this.

This schould work:

Mage::registry('current_product')->getSku()

Edit: just for information why $this->getProductName() works:

/**
 * Retrieve current product object
 *
 * @return Mage_Catalog_Model_Product
 */
protected function _getProduct()
{
    return Mage::registry('current_product');
}

/**
 * Retrieve current product name
 *
 * @return string
 */
public function getProductName()
{
    return $this->_getProduct()->getName();
}