similar to: Hi. learning from the Agile Rails book

Hello. Where is there an Agile Messageboard? On the first part of the Depot example, a price field shouldn''t be an integer right? (it should be more of a float since a price has decimals) Dominic Son -- Posted via http://www.ruby-forum.com/.

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:

Hello, I should give the expected disclaimer that I am brand new to rails and am going through the Agile web development with Rails book right now. I am in the testing section and I can''t get past an error. this is my cart_test.rb test file: require File.dirname(__FILE__) + ''/../test_helper'' class CartTest < Test::Unit::TestCase fixtures :products def setup

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

Hi. in the Rails Agile book here''s what was happening: >>> module StoreHelper def hidden_div_if(condition, attributes = {}) if condition attributes["style" ] = "display: none" end attrs = tag_options(attributes.stringify_keys) "<div #{attrs}>" end # format_price method ... end Note that we cheated slightly here. We copied code from the Rails

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 recently finished the first part of the "Agile Rails" book. But, the depot doesn''t completely work as it should. I still have 2 problems: I will explain them in 2 threads. The first one is: I can''t destroy products (I can only creat and update them). When I try to delete a product --> http://localhost:3001/admin/destroy/3 I get this error message:

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 have been working through the Agile Web Development with Rails book doing the Depot tutorial. I have completed it and it works but I cant say I understand how and why. My question is this "After adding products to the Cart, how do I then give users the option to delete just one item and not empty the whole cart?" I''ve been playing around with all sorts of code, just making

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

I''m new to Ruby and RoR but excited to learn what I can do with RoR; I have Pickaxe second edition and want to get "Agile Web Development with Rails" but I''m aware that the book was published some while before RoR version 1.0 was released. Has a lot changed since then, and would I therefore be advised to wait for a second edition of AWDwR? Many thanks in advance

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

hi there. Has anyone ever have this happen to them where they did one of these raw ''execute fk_'' sql commands in their migrations (like seen in the depot app in the agile rails book when they were building the line item active record...anyways, now i can''t get those foreign keys to delete, nor can i even get the column_id to delete too..so weird.. humm..just

Hello everyone, I''m a complete Rails newbie who is currently working my way through the Agile Web Dev with Rails book. I''ve reached the chapter on creating the shopping cart (chapter 8). I keep having a problem with the same error which I can''t get past, however what''s more confusing is that it''s being generated even when I swap all my app code out

I get this error ... NoMethodError in StoreController#index undefined method `salable_items'' for Product:Class and here is my store_controller.rb ... class StoreController < ApplicationController def index @products = Product.salable_items end def self.salable_items find(:all, :conditions => "date_available <= now()", :order => "date_available

I''m a real Newb; just bought AWDwR and using it with Win2000 - it took me ages, and only after reading Curt Hibbs Rolling with Ruby, to realise that I needed to use Cmd.exe before using AWDwR''s dave> instructions. I''ve created Say/hello.html and I still get "Template is missing" with http://localhost:3000/say/hello I''ve read

Hi. I''ve installed Instant Rails, and when testing my rails apps, I''m noticing the load time is quite noticable. I''m concerned when I convert to real produciton, going live, if there''s going to be the same delay, plus additional bandwith traveling time. I am running on a pentium 4.. Insights on speed.. Thanks Dominic Son -- Posted via

I''m studying the Agile Development with Rails book. In the chapter that first sets up the depot application (page 68), there is this bit of code from a view: <% for product in @products %> <tr> <% for column in Product.content_columns %> <td><%=h product.send(column.name) %></td> <% end %> etc... I am trying to absorb both Ruby and

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I''ve been working my way through the Agile book and just completed the depot sample application. I learned quite a bit along the way. On page 171 we are led through the creation of a test (that fails) for new code. The new code (a search function) is left as an exercise for the reader. Well, I think I solved it but I''m not

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