similar to: Agile Rails book: depot problem

I am following the instructions on Agile Web Development with Rails book "Iteratio E1: Capturing an Order" section. When I run the migrations I get the following error. rake db:migrate (in /Users/balaparanj/work/depot) -- execute("alter table line_items \n add constraint fk_line_item_products \n foreign key (product_id) references products(id)") rake

My second problem is: Listing users, and deleting them doesn''t work. If I try to list user, i just get this list: User Delete User Delete User Delete User Delete I''m using this code in the login_controller: def list_users @all_users = User.find(:all) end def delete_user @id = params[:id] if id && user = User.find(id) begin User.destroy

anyone can explain me why in the Agile Depot Tutorial application they use i.product_id to find if a product already exist in the cart, because the cart contains items, each of them references a product. I tried i.product_id like in the tutorial and i.product.i all of these 2 notation works , but i find the second seems more clean??? isn''t it. Any explanation will be fine Regards

Please can someone show me the correct syntax for a hidden field in forms, this is my code <%= start_form_tag :action => ''create'' %> <div class="form1"> <table width="auto" boader="8" cellspacing="5" cellpadding="5"> <% hidden_field ''line_item'', ''client_id'', :value

Pg. 57 of Agile asks you to create a scaffolding by typing in ruby script/generate scaffold Product Admin Instead of generating everything, it only gives me exists app/controllers/ exists app/helpers/ exists app/views/admin exists test/functional/ dependency model exists app/models/ exists test/unit/ exists test/fixtures/ identical

I have been working on implementing a variant of the depot example as a method of learning rails. I have come up against a css question that is driving me nuts. This may not be the right forum to ask this question. If anyone would like to refer me to another place to ask, I would be grateful. Most of the code that I am working on is straight from the examples, with minor alterations. What is

anyone can explain me why in the Agile Depot Tutorial application they use i.product_id to find if a product already exist in the cart, because the cart contains items, each of them references a product. I tried i.product_id like in the tutorial and i.product.i all of these 2 notation works , but i find the second seems more clean??? isn''t it. Any explanation will be fine Regards

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

Hi I am going through the Agile web development with rails 4th edition book and I am trying to modify the depot application to allow the customer to select a size before purchasing a product. What and how would I have to modify the depot app to do this? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails:

Hi, In "Agilge Web Development With Rails" on page 217, an example of foreign keys is shown. I am however unable to find a definition of wheater the naming of the index is significant. On the above mentioned page, this line is shown in the example: constraint fk_items_product foreign key (product_id) references products(id) In "fk_items_product", "items" 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 ya, I want to add categories to the depot example in the Agile rails book. These are my thoughts: Create a new table called categories with id, title, description, and image fields. Add a new field to the products table called category_id Create a model called Category with "has_many :products" Now I should have a one to many link between the products and categories tables? Now

I''ve encountered a perplexing problem whilst following along the demo app in the "Agile Web Development with Rails" book. Any help would be greatly appreciated. Here is a brief time line of my tale of woe:- 0. Been programming (business apps) and designing/building DBs for two decades - but new to both Ruby and Rails (so I apologise in advance if I''ve made some

I was trying to write a wrapper for number_to_currency to return currency in pounds. I used a helper class to do this. def number_to_pounds(amt) number_to_currency(amt, :unit => "£") end This works fine, but I am trying to understand why I can''t use a symbol to pass the values. I thought symbols were like pointers. (you now know I am a newbie). def

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''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>"

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

I need some help please.. when I created web application about books market, i create a cart and using test the message error appear like this on rake test:functionals LineItemsControllerTest > test_should_create_line_item > ERROR > Cannot redirect to nil! and also appear on web side, thats error told that "Cannot redirect to nil!" Then i was checking the code,

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

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