Hi, I'm reading the "Agile Web Development With Rails" book. So long, everything has worked fine, but now I got this annoying error message that I just can't understand. The error appears for me around page 87, chapter 8. NoMethodError in Store#display_cart Showing app/views/store/display_cart.rhtml where line #28 raised: undefined method `product' for 2395.0:Float Extracted source (around line #28): 25: </tr> 26: <% 27: for item in @items 28: product = item.product 29: -%> 30: <tr> 31: <td><%= h(product.title) %></td> I'm sure my source code is correct. //Emil
on 2006-03-05 21:34
on 2006-03-05 21:43
For some reason your object "item" has the value 2395.0, and is a floating point object. Without having the Agile book at my fingertips, from memory it's supposed to have a price attribute with that value. At a guess, you could be setting @items to an individual item, rather than a collection of items. That would be consistent with the error you're seeing. Have a look at your controller code where you set @items to something; the problem's probably going to be right around there. HTH Dave M.
on 2006-03-05 22:50
This is the code in the controller where @items is set: def display_cart @cart = find_cart @items = @cart.items end private def find_cart session[:cart] ||= Cart.new end And this is the code in the cart.rb model: class Cart attr_reader :items attr_reader :total_price def initialize @items =  @total_price = 0.0 end def add_product(product) @items << LineItem.for_product(product) @total_price += product.price end end Any idea? 5 mar 2006 kl. 21.43 - 5 mar skrev David Mitchell: > the problem's probably going to be right around there. >> has worked fine, but now I got this annoying error message that I >> >> 31: <td><%= h(product.title) %></td> >> >> > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails Hälsningar, Emil email@example.com
on 2006-03-22 05:39
I am working through that book as well. I am getting the exact same error. I thought it was something I did wrong but I have no idea what to check since I'm still pretty new at this stuff. Hopefully, it's the syntax of the book. Has anyone seen the errata or have any ideas? I would think that if we're getting the same results, surely there's someone else out there who knows what's going on.