similar to: Q on AJAX with respect to DRY

First of all id like to say hi to everyone from Argentina, im yet another Depot first-timer. Going through the example, i got to the point where my cart finally runs Ajax-based. And there is a line where Dave says, after all the job is done "You should see the cart in the sidebar update. And you shouldn''t see your browser show any indication of reloading the page. You''ve

Hi all i am following this like for basic paypal http://railscasts.com/episodes/141-paypal-basics and i got this error View: <%= link_to "Checkout", @cart.paypal_url() %> undefined method `paypal_url'' for nil:NilClass despite i have this code in my model called Card Cart Model: class Cart < ActiveRecord::Base def paypal_url(return_url) values = {

Hi there, I''d like to know if there is a solution to the scenario when using acts_as_authenticated and ajax: I have an action in my controller which is protected by login via acts_as_authenticated. Now, this action can be called both by human interaction, as well as ajax requests. (It is an add to cart link). It works great as long as I am in an authenticated session. Now, I want to

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 tend to write a fresh description block for every change in the parameters for that specific action, because I hate conditionals in the example describtion, e.g.: describe SomeController, "handling GET /path/with/param/3" do it "should do this" it "should not do this if" it "should still do that in both cases" end Seperate description blocks keep

Hi Gurus, I have a class, specified in models cart.rb, which doesn''t inherit from anything--it''s just a container class Cart ... I just discovered I can''t call number_to_currency in that class. Any idea how to "include" it in my code? I tried ActionView.number_to_currency without luck. I could kill a few lines of non-DRY regexp code in cart.rb if I could

I have a really horrendous problem with sessions. before_filter :find_cart_from_session private def find_cart_from_session if session[:cart] # if there''s is a cart in the session begin @cart = Cart.find(session[:cart]) # return existing or new cart rescue ActiveRecord::RecordNotFound @cart = Cart.create @cart.save session[:cart] = @cart.id

Hi, I''m surprised by the solution published at the following place : http://wiki.pragprog.com/cgi-bin/wiki.cgi/Task_D-A_Dash_of_Ajax For the 4th point : the solution published make a database request for remove a Product from a Cart. I think it''s not needed. What do you all think about that ? --~--~---------~--~----~------------~-------~--~----~ You received this message

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

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

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 folks, I''m putting together a site that will have a shopping cart tab along the top which, when clicked, slides down to reveal the full contents of the cart (covering the page underneath it). When designing it and getting the styling right, I had the page display the cart fully open by default. This worked fine - the cart can close and open any number of times without problem[1].

I''ve found these two snippets of code useful and would love some feedback. first, .should_have_valid_associations usage: context "A new Product" do specify "should have valid associations" do @product.should_have_valid_associations end end code: (thanks to Wilson/Defiler for converting to rspec) module Spec module Expectations module Should

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 --->

hi, I have a draggable element (cart-item) in a shopping cart <%= draggable_element "item_#{product}_#{i}", :revert => true %> When this element is dragged outside the cart into the "main_div", I want to show a puff effect and remove the element. When it is dragged within the cart, it should revert. So i wrote this code for drop_receiving _element <%=

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] ||=

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:

<% if @cart.items.empty? %> |^|^|^|^|^|^|^|^|^|^|^|^|^| This peice of code is having a problem in the store.rhtml of my application but i have no idea why... it says that it is and (extracted source... here is the Store.rhtml... this is from an application made in "Ruby on Rails" and it wont tell me how to fix it... iv done everything in the book the exact way its told me,

Hi all, I am writing a simple shopping cart which will consist of a single class. There will be no DB table for carts so I do not want to make my Cart a model. But where do I place my Cart class so that I can access it in my controllers? I want to be able do do things like this (for instance in a shop controller): def add_to_cart @session[''cart''].add(article_id, amount)

I''m trying to implement a remove from cart method based on the examples in the second edition Agile book. I have everything working except for the RJS that removes items from the cart. Ideally what I''d like to do is highlight an element that I am deleting only if there is more than one of that particular item in the cart. If the item deleted is the only of