similar to: Using AWS to pass in an object and associations

What is the most elegant way to save new one-many associations? order = Order.new(:name => "My Order") order.line_items << LineItem.new(:product_id => 1, :quantity => 2) order.line_items << LineItem.new(:product_id => 2, :quantity => 5) order.save The above - which is by far the most elegant way of putting it - doesn''t work for me - the line_items

Hello, I am trying to write a sample application. I have class LineItem< ActiveRecord::Base belongs_to : order end && class Order < ActiveRecord::Base has_one :line_item end Now in the controller i am trying : def add @ord = Order.new(params[:ord]) @ord.line_item = LineItem.new(params[:lineitem]) if @ord.save redirect_to :action => ''list'' else render

line_items.yml: one: product_id: 1 cart_id: 1 quantity: 1 carts.yml: one: {} product.rb: has_many :line_items cart.rb: has_many :line_items, dependent: :destroy line_item.rb: belongs_to :product belongs_to :cart line_item_controller.rb: def destroy @line_item = LineItem.find(params[:id]) @cart = @line_item.cart @line_item.destroy respond_to do |format| format.html

Hi everyone, I am relatively new to rspec and I am running into a wall in testing my views. I have a RESTful resource Contracts with a nested resource of Line_items. I am trying to figure out how to test the "edit" form of the Line_items. What complicates this is the nested routing and how to account for it, and that there is a partial form (_form.haml) that both the edit.haml and

I developped a web site with Ruby on Rails, but I get a problem during the testing. I have a parent table called "orders" and a child table called "line_items". I created some data for the test in the files "test/fixtures/orders.yml" and "test/fixtures/line_items.yml". In the file "test/unit/order_test.rb" I wrote some code to test the

Hi, I want to make a copy of an object with its associations, and I am looking for an elegant solution. This is what I intuitively think should work, but it doesn''t: order2 = order1.clone order1.line_items.each do |o| order2.line_items.build(o) end This doesn''t work because a model class does not stringify its keys ... so I can''t pass an object into a method that

I was doing this: @line_items = LineItems.find_all_by_invoice_id(params[:id]) @payments = Payments.find_all_by_invoice_id(params[:id]) @total = @line_items.sum{ |item| item.cost } @payment_total = @payments.sum{ |payment| payment.value } @balance = @total - @payment_total But when no payments had been made it was coming up with an error when trying to sum nil, so I did

What is the best way to get the running total of a number field in child records. Let say I have an Order model, which has_many :line_items, and each LineItem has an amount field. I would like to get the grand total of a specific Order. Is it a good idea to add a ''total'' column in the ''orders'' table and update it every time a line_item is

I am struggling with how to add dynamically add form elements to a form based on user action. Now here is my situation: I have model Project that has_many line_items On the form to create a project I initially display form elements (some drop downs and text boxes) for adding just one line_item. There is also a button or a link on the page (not sure if this should be in the main form or

Hi, I have a webservice. And I want to pass in, a model. So, for example: api_method :save_person, :expects => [Person] When I do this I get an error saying that I cannot have ActiveRecord objects as parameters. Fine. I can have AWS Structs as parameters. I don''t want to start ''maintaining'' a struct everytime I change the table structure od Persons. So, is

Hello everyone, I''m fairly new to Rails (writing my first real app) and brand new to this mailing list. I''ve got a rails/sql error I just can''t seem to solve. It''s probably really simple, but I''m been googling and reading for a day and have made zero progress on it. Hopefully someone on this list can shine some light on my problem, or point me in the

Hey all, I''m trying to find a simple way to reference all of the objects that belong to their parent''s parent. In other words: Clients --> Orders --> LineItems How do I get all of a client''s lineitems in one array (i.e., client.all_lineitems)? Thanks! -Neal -- Posted via http://www.ruby-forum.com/.

Hi, I have a SystemStackError. Here is the stack (sorry if it''s a little long) : app/models/line_item.rb:14:in `product'' app/models/line_item.rb:14:in `product'' app/controllers/store_controller.rb:188:in `redirect_to_paypal'' /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/associations/association_proxy .rb:123:in `each''

I''m having trouble when I try to add another field in the form using ajax. I''m trying to add another line_item object into the invoice and i''m using the link_to_remote function to implement this. When I do that though and submit to the form, the line_item entries all have the same field name so they get overwritten. I''m not sure how to get around that. Here is

Thanks in advance I want to know how to solve No method errors Agile Rails 4th ed Great book But second time I get this type of error I would like to know how to troubleshoot and resolve Please see below thanks once again NoMethodError in Store#index Showing C:/rails/shop9/app/views/line_items/_line_item.html.erb where line #9 raised: undefined method `title'' for nil:NilClass

Hi, I have a real simple association setup here that''s just trying to: - Create a new PayjunctionOrder - Create some LineItem objects and assign them to the PayjunctionOrder - Save everything I''m using Rails Edge. ---- class PayjunctionOrder < ActiveRecord::Base has_many :line_items end ------------------ ---- class LineItem < ActiveRecord::Base belongs_to :order,

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,

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

Hello, I am not sure of the best way to model this situation in Rails and would appreciate some guidance. An order can hold multiple line items. Each line item is for a certain number of any given product. There are four products, each in a different table because they have completely different attributes. So I have: Order - has many LineItems LineItem - belongs to an Order

i have this model: class LineItem < ActiveRecord::Base belongs_to :quote end in the console: >>l = LineItem.create ActiveRecord::StatementInvalid: Mysql::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' , , , )'' at line 1: INSERT INTO line_items (`qty`, `quote_id`,