Question

In my program, I have to get product info using the product id, like this:

# Show the product info.
def show
    @product = Product.find params[:id]

    if !@product
        redirect_to products_path, :alert => 'Product not found!.'
    end
end

In case the product doesn’t exist, I have a Rails error Couldn’t find Product with id=xxx. I would like to override this error message and display the error by myself as a flash alert.

How can I do that? Thanks in advance.

Answer 1

You can write Product.try(:find, params[:id]) or Product.find_by_id params[:id] and get nil in case the product is not found instead of an exception