similar to: asigning values to atributies when source is nil

Hello, I should give the expected disclaimer that I am brand new to rails and am going through the Agile web development with Rails book right now. I am in the testing section and I can''t get past an error. this is my cart_test.rb test file: require File.dirname(__FILE__) + ''/../test_helper'' class CartTest < Test::Unit::TestCase fixtures :products def setup

When I run the unit testing code in Unit Testing Models chapter of the Agile Rails book, I get the following error: $ ruby test/unit/cart_test.rb Loaded suite test/unit/cart_test Started F. Finished in 0.21806 seconds. 1) Failure: test_add_duplicate_product(CartTest) [test/unit/cart_test.rb:22]: <4690> expected but was <3579>. 2 tests, 3 assertions, 1 failures, 0 errors require

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>"

This is a newbie question, I have a class which is not derived from ActionController or ActiveRecord but I want to use logging, I tried require but still logging does not work - This class is located in a file in "model" directory. ------------------------------------ require ''logger'' class Cart def add_product(product) logger.info("Searching for product

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

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''

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

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

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:

Hi everybody, I''ve search a lot on google to help me with this one without success. I know that some people had the same problem as I have, but there solutions doesn''t seems to work for me. I''m trying to do the depot example in the AWDwR book. But now I''m stock with a problem that I can''t solve. I get this error: <--- begin error here --->

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

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/.

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:

NameError in StoreController#add_to_cart uninitialized constant StoreController::Cart This is the controller: class StoreController < ApplicationController def index @products = Product.find_products_for_sale end def add_to_cart @cart = find_cart product = Product.find(params[:id]) @cart.add_product(product) end private def find_cart session[:cart] ||=

When I add an item to the shopping cart, I get an error: undefined local variable or method `cart_item'' for #<#<Class:0x3715a78>:0x3715a48> Session info says the cart being updated properly. I''m just not able to output two variables: <%= cart_item.quantity %> &times; <%= h(cart_item.title) %> I did some research, and I can grasp that local

Hello, Im in the process of working my way through the 2.ed of the agile book. As many of you already know, the book goes through the regular development cycle of the Depot application. I have hit a wall when they started talking about the sessions and the exact mechanics of how an item is added to the session. The code looks like this: depot/app/controllers/store_controller: def add_to_cart

Hello, I am veeeery new to rails and also to ruby. I have 2 books here on my desk and try to go through it. The first book is "Agile Webdevelopment with Rails" and I have trouble with the following code which I have from the book. I cant get it working. I searched a lot on google - and also on the erata pages of the book publisher but without any luck. I hope someone can help me.

Hello, I am new to ruby on rails. When I tried to create a session I am getting an error, ''wrong number of arguments (1 for 0)'', in my controller. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ArgumentError in CustomerController#add_to_cart wrong number of arguments (1 for 0) RAILS_ROOT: /project/bob_shopping Application Trace | Framework Trace | Full

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