Sunday, March 5, 2017
You're getting no method error "qty" because @product is not set in your controller action. So you're essentially trying to subtract @taken from something that is NIL.
You need to see @product as an instance variable in your specific controller method and this should work out for you.
-James
On Mar 5, 2017, at 12:23 PM, Joe Guerra <jguerra@jginfosys.com> wrote:ok, here's my method...def calc_remaining
@taken = Cart.where('product_id' => @product).count
@remaining = @product.qty - @taken
endbut when I call it from my add to cart method, @product.qty is undefined method `qty' for nil:NilClass.
On Thursday, March 2, 2017 at 11:07:06 AM UTC-5, Joe Guerra wrote:In my show method for my products controller I've got a variable that track qty ( @remaining ).Can I access this variable from another method within the same controller?Thanks,Joe--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/14870fab-2fc6-421f-9e1c-677a2001dac5%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment