/**
* Add a row of product information to the bundle, determining a requirement for the bundle to be deemed as valid
*
* @param ProductRow $row
*/
public function addProductRow(ProductRow $row)
{
$key = md5(serialize([$row->getProductID(), $row->getOptions()]));
if (array_key_exists($key, $this->_productRows)) {
$this->_productRows[$key]->increaseQuantity($row->getQuantity());
} else {
$this->_productRows[$key] = $row;
}
}
