public void setProductDiscount(int productid, int discount, Session session)
{
Product product = DBProduct.getInstance().getProductByID(productid);
if (product == null)
{
throw new DoesntExistException("no such username");
}
SubscribedUser user = session.getSubscribedUser();
DBStore storeDB = DBStore.getInstance();
StoreRole sr = storeDB.getStoreRole(product.getStore(), user);
//??????????????????????????????/
//sr.setProductDiscount(product, discount);
}
