similar to: Errors and Forms with arrays

Hello- I was wondering what would be the simplest/cleanest way to have a view offer entry fields for several items (e.g. the "quantity" for items in a shopping cart). If I have a model such as "cart" which has_many "items", then I can use "cart.items" to get an array of all of them. Each item has a quantity, so I''d have

Hello- I have a database/rails design question. I''d like the user to be able to specify a set of fields they would like associated with items. Imagine a shopping cart where each item has a description and price. But a particular customer may choose to associated a color with all her items. (it will be site-wide, so every item listed for this particular user will have this

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

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,

Hello, I''m just getting started with Ruby on Rails. Of course, I bought the "Agile Programming..." book. I went through the shopping cart (depot) tutorial without any problem. However, I would like to change the cart so that one can enter a quantity for each item desired. I''m assuming that each item would need to be converted to include a form with the a hidden field

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

All, I''ve just started Rails and Ruby a week or so ago. Please forgive me for my ignorance. I started writing a small test application to test some of my new knowledge and have hit a wall. Would like some best practices. I have 3 tables, as below... CREATE TABLE `carts` ( `id` int(11) NOT NULL auto_increment, `name` varchar(255) NOT NULL, `quantity` int(11) NOT NULL, PRIMARY

I have looked at examples for this. I found a similar example in the Agile Web Dev... book but that didn''t help. Here''s what i am trying to do. A Cart has many line items. On the Display Cart page, I want to provide the user the option to update quantities. Here''s the rhtml code: <%= start_form_tag :action => ''update_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

Hello, I''m just getting started with Ruby on Rails. Of course, I bought the "Agile Programming..." book. I went through the shopping cart (depot) tutorial without any problem. However, I would like to change the cart so that one can enter a quantity for each item desired. Has anyone else tried to do this? Can anyone point me in the right direction? Thanks! Brad -- Posted

The question is, should we deal with Controller and Action logic in the RJS file? If so, is it quite "spaghetti-like"? This is actually for the Agile Web book Shopping Cart example: If the user clicks "Remove Item" and we do it the AJAX way, what if we want to first show the cart''s content as 0 x Pragmatic Version Control $0.00 and then highlight

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?

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.

hi all, i am trying a little project based on the agile book''s shopping cart example and have hit a problem. the inserts are failing when saving a quote which contains line_items. the models are as follows (quote_line_item is using single table inheritance): class Quote < ActiveRecord::Base has_many :quote_line_items end class LineItem < ActiveRecord::Base end class

I''m setting up a basic shopping cart type app, and the products we have will have multiple options. Size, color, etc. I''m trying to figure out how I can collect the the options that are selected when a user adds the item to their cart. An OptionSet is a group of options ("Size", "Color", etc), and an ItemOption is the option itself ("12 oz",

Hi there- What''s the easiest/most efficient way to perform a zerofill in Ruby? i.e. Given the value ''val'', I would like to do something like: val = 43 puts val.zerofill(8) ---> "00000043" gsub? sprintf of some sort? Jake -- Posted via http://www.ruby-forum.com/.

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?

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

Hi all, I have the shopping cart page where a user can add items dynamically through ajax as explained in Railscast episode 75. I am using observe_field to observe the ''quantity'' and ''cost'' fields to update the total field for each item. This does not work however, for records that are added through the Ajax. How can i name the fields and observe them as i have

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