similar to: newbie question

Hi all, I''m following the shop example in ''Agile Web Development with Rails''. I would like to extend the checkout screen, in such a way people can change the number of items they have selected in there cart. In my controller I have: def checkout @cart = find_cart @items = @cart.items if @items.empty?

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

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

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 --->

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 all, I''m followed the instructions written here to prepare my new iMac for Ruby / Rails developement: http://hivelogic.com/articles/2005/12/01/ruby_rails_lighttpd_mysql_tiger When I run script/server I get the following output: harm-de-laats-computer:~/rails/test harmdelaat$ script/server => Booting lighttpd (use ''script/server webrick'' to force WEBrick) =>

I am using this line on my index.rhtml page to capture the quantity required of a particular item for a basic shopping cart app: <%= text_field ''line_item'', ''quantity'', {:size=>3} %> </td> but my next screen (a cart screen) doesn''t reflect what was entered in that text field when the item is added to the cart. That is,

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

Hi all, I''m trying to create a related dropdown box: In my view: <select name="category" id="category"> <option value="">Select category</option> <% @categories.each do |category| %> <option value="<%= category.id %>"> <%= category.title %> </option> <% end %>

Hi all, Is it possible to configure red cloth to escape a block such as: ------------------------------------------------------------------ Hello, _this_ works *beautifull* [code lang="ruby"] def foo bar end [/code] ------------------------------------------------------------------ The text in the [code] block should not be parsed by Red Cloth''s to_html method. I cannot

I am geeting the foolowing error. undefined method `create_table'' for #<LoginController:0x5e60110> I wrote the crete action in application controller. I am coping ther total worng please help me! class ApplicationController < ActionController::Base model :cart model :line_item before_filter :authorize def create # create_table() yields a TableDefinition instance

Hi all I''m creating a shop page. I have a cart model that looks like the following: class Cart attr_reader :line_items def get_line_item id @line_items.each do |l| return l if l.id == id end end def initialize @line_items = [] end def empty! initialize end def empty? return true if @line_items.empty? false end end And I have some

I''m developing a rails application. I have an Order model that has_many OrderItems. I mocked the OrderItem model in my Order specs using mock_model. I thought I should focus my specs on each model and always mock associated models. In my Order model I need a way to merge OrderItems which have the same cost and same product_id. That I can spec. The other thing this merge helper

Hi - another question, sorry.... I''m trying to get the highlighting effect to work on the current_item. The page refreshes fine, and then I get an error as the highlighting code is fired: page[:current_item].visual_effect :highlight, :startcolor => "#88ff88", :endcolor => "#114411" The error

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:

I suspect my problem is similar to having an order and wanting to have order items as part of the order, so I''ll explain the problem in those more familiar terms and then explain what if anything makes my actual situation different at the end. In an Order lets say you have: shipping_address and a shipped bool. OrderItem has quantity and name So Order has_many :OrderItems, and OrderItem

Hi all, I would like to validate my model without actually saving it to the database. Actualy I need it as follows: User enters user details in a post form. When the user submits the form I would like the form to be validated. However, when validation passes, I don''t want to save the model yet, but I would like to store it in Session context. Is this possible at all? And if so, how

I seem to be missing something trying to use ''validates_inclusion_of'' to validate a foreign key and was hoping some one could piont out my mistake? The problem seems to be that Order.find_all.collect is not returning an array that contains the order_id, if I replace it with a hardcoded array everything works as expected. The model: class OrderItem < ActiveRecord::Base

Hi all, I have deployed my Ruby On Rails application on TextDrive. At first everything seamed to be fine. However, lately, response time of my application is incredible slow. Worse, lately there is also a lot of downtime. I have contacted their support desk, however, they do not respond (at all, or very, very late). Has anyone else these experiences with TextDrive? And if so, what did you do