/**
* Returns the additional data for the article which will
* be merged with the actual product
*
* @param $productId
* @return mixed
*/
public function getAdditionalProductInfo($productId)
{
if (!method_exists($this, 'getAdditionalProductSelect')) {
return;
}
return $this->db->fetchRow($this->getAdditionalProductSelect($productId));
}
