You're going to have to isolate what line the error originates from on
your application by going through the Rails trace information,
otherwise we're all going to be here forever trying to figure out what
the problem is.
On Dec 30, 1:22 am, Ryan Ororie <rails-mailing-l...@andreas-s.net>
wrote:
> I'm going through a tutorial here and running into an error I'm not sure
> how to fix..this is my first foire into sessions.
>
> Trying to create a shopping cart for a store app. I'm getting this
> error:
>
> wrong number of arguments (1 for 0)
>
> RAILS_ROOT: script/../config/..
>
> Here is my cart_item.rb model:
>
> class CartItem
> attr_reader :product, :quantity
>
> def initialize
> @product = product
> @quantity = 1
> end
>
> def increment_quantity
> @quantity += 1
> end
>
> def title
> @product.title
> end
>
> def price
> @product.price * @quantity
> end
> end
>
> And my cart.rb model:
>
> class Cart
> attr_reader :items
>
> def initialize
> @items = []
> end
>
> def add_product(product)
> current_item = @items.find {|item| item.product == product}
> if current_item
> current_item.increment_quantity
> else
> @items << CartItem.new(product)
> end
> end
> end
>
> And my add_to_cart.rhtml view:
>
> <h1>The shopping cart</h1>
> <ul>
> <% for item in @cart.items %>
> <li><%= cart_item.quantity %> × <%= h(item.title) %></li>
> <% end %>
> </ul>
>
> When I first tried clicking the add to cart function for a product I got
> an error that method 'product' was undefined but then I did rake
> db:sessions:clear and now I am getting this wrong number of arguments
> error - any ideas?
>
> Thanks!
> --
> Posted viahttp://www.ruby-forum.com/.
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