It works fine in the show method, but fails in add_to_cart.
On Sunday, March 5, 2017 at 1:37:54 PM UTC-5, Hassan Schroeder wrote:
>
> On Sun, Mar 5, 2017 at 10:23 AM, Joe Guerra <jgu...@jginfosys.com
> <javascript:>> wrote:
>
> > def calc_remaining
> > @taken = Cart.where('product_id' => @product).count
> >
> > @remaining = @product.qty - @taken
> > end
>
> > but when I call it from my add to cart method, @product.qty is undefined
> > method `qty' for nil:NilClass.
>
> And that tells you that @product is nil at that point. Where is the code
> that sets that variable?
>
> --
> Hassan Schroeder ------------------------ hassan.s...@gmail.com
> <javascript:>
> twitter: @hassan
> Consulting Availability : Silicon Valley or remote
>
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