similar to: Yet another problem with NoMethodError in Store#display_cart

I''m working on building the shopping cart in the Depot tutorial in the Agile Web Development book. I''m at the part (about page 80) where you build the ability to add items to the cart. I''m able to get to /store/display_cart/ and it seems items are being added, but if I just click on a link to add an item (/store/add_to_cart/2) it gives me this: NoMethodError in

In the Agile Rails tutorial I am revisiting building a cart. I have followed the steps given in the book to create the class ''Cart'' thus: class Cart attr_reader :items attr_reader :total_price def add_product(product) @items << LineItem.for_product(product) @total_price += product.price end def initialize @items = [] @total_price = 0.0 end

hi, i''ve been cracking my head on this one for a while and would be humbly grateful for any pointers i''m working through Agile Web Devopment w Rails and, in the depot example have created the cart class for session handling, but am getting the following error, which suggests the @items variable is not being populated with any data from LineItem NoMethodError (You have a

I reached page 82 of the Book "Agile Development with Rails" First Edition. After I compiled the code I got the following error message. [CODE] NoMethodError in Store#display_cart Showing app/views/store/display_cart.rhtml where line #11 raised: undefined method `product'' for 1099.0:Float 8: <table> 9: <% 10: for item in @items 11: product = item.product 12:

Many of you probably know the ''depot'' app from the ''Agile Rails development'' book. I have constructed the ''products'' model, the Store-controller, and the ''Cart'' and ''Line Item'' classes. I have told Application-controller about :cart and :line_item: model :cart model :line_item Here''s part of

Hi, I am just learing Rails and I am going through the Agile Web Development with Rails book. I am receiving: NoMethodError in Store#add_to_cart undefined method `add_product'' for #<StoreController:0x3764d80> RAILS_ROOT: ./script/../config/.. Application Trace | Framework Trace | Full Trace #{RAILS_ROOT}/app/controllers/store_controller.rb:12:in `add_to_cart''

Many of you probably know the ''depot'' app from the ''Agile Rails development'' book. When the view changes from ''Store'' to ''display_cart,'' a session containing the shopping-cart (:cart) is supposed maintain the ''cart'' between calls, but when the display_cart stub view shows up, I have always ZERO elements

I''m doing the depot example in the Agle Web development book. I''m getting this error: "undefined method `product'' for #<BigDecimal:331ce70,''0.21E1'',8(8)> " "Extracted source (around line #9): 8: for item in @items 9: product = item.product 10: -%> 11: <tr> 12: <td><%= item.product%></td>"

Working my way through chapter 8 of "Agile Web Development...", I''m getting the following error when clicking the add_to_cart button. ArgumentError in Store#add_to_cart wrong number of arguments (0 for 1) What am I doing wrong? I know it''s got to be some thing stupid. Request: Parameters: {"id"=>"1"} session dump: --- :cart:

In Agile Web Development with Rails, I get this error when adding a product to my cart: uninitialized constant Cart ... Application Trace: /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/ active_support/dependencies.rb:200:in `const_missing'' ./public/../config/../app/controllers/store_controller.rb:21:in `find_cart''

Hello everyone, I''m a complete Rails newbie who is currently working my way through the Agile Web Dev with Rails book. I''ve reached the chapter on creating the shopping cart (chapter 8). I keep having a problem with the same error which I can''t get past, however what''s more confusing is that it''s being generated even when I swap all my app code out

Hello. I''m using the Agile Web Dev. book 1st Edition and I''m puzzled by the code on pp. 83-84. <%= link_to ''Add to Cart'', {:action => ''add_to_cart'', :id => product }, :class => ''addtocart'' %> def add_to_cart product = Product.find(params[:id]) @cart = find_cart

Hi all, I get an error when testing the "store_controller_test.rb" The troublesome line is in the test below: def test_add_to_cart get :add_to_cart, :id => @version_control_book.id <<< cart = session[:cart] assert_equal @version_control_book.price, cart.total_price assert_redirected_to :action => ''display_cart'' follow_redirect

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''

I''m working my way through the book Agile Web Development with Rails, and I am in the section where the book has me creating a display_cart method and the associated view. When I copied the code from the book into the view, it threw this error. If anyone could give me some hints where I should be looking I''d appreciate it. NoMethodError in Store#display_cart Showing

I''m trying to set up the Depot app from Agile Web Development and I got this error after C1 - Creating a Cart. The exact error looks like this: ------------------------------------------------------------------- NoMethodError in StoreController#add_to_cart You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while

I bought the second edition of the ruby on rails, it seems to work fine now, did some adjustments to the code. But now I get a second error and I want to learn to understand to fix them myself. So here is the error. ArgumentError in StoreController#add_to_cart wrong number of arguments (1 for 0) #{RAILS_ROOT}/app/models/cart.rb:15:in `initialize'' #{RAILS_ROOT}/app/models/cart.rb:15:in

I want to modify and update the items in the Depot - "display_cart". Since the cart is in a session, its a little hard to get at the data. I just want to create a way to change quantities, prices and recalculate. Has someone done this, and could you point me to the right direction. Thanks Chas -- Posted via http://www.ruby-forum.com/.

Hello! I am working my way through the Agile Web Development guide on RoR (the depot application). I am a bit lost as to where to debug the following error. The error is pasted below: ================================================================================================ NameError in Store#add_to_cart undefined local variable or method `product'' for LineItem:Class

Help, i''ve been trapped on the tracks here for a day now in the Agile w/ Rails book (latest edition) I can''t get page 115 to display. It says: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.each Extracted source (around line #3): 1: <h1> My Agile Cart</h1> 2: