public string SaveProduct(Product product)
{
Product aProduct = productGateway.IsExist(product);
if (aProduct == null)
{
int rowAffected = productGateway.SaveProduct(product);
if (rowAffected > 0)
{
return("Save Successful");
}
else
{
return("Save failed");
}
}
else
{
return("Product is duplicate");
}
}
