Naming Error: "uninitialized constant ActionRecord"

rubyonrails-talk
1

I'm using Rails 2.0.2 with Ruby 1.8.6 on Mac OSX Leopard. I'm trying to follow the instructions in "Ruby for Rails" by David A. Black but I'm getting an error when I attempt to display one of the views. I know the book was written for Rails 1.X and I'm assuming that's where the problem is.

For my methods I have:

class Composer < ActiveRecord::Base   has_many :works end

class Work < ActionRecord::Base   belongs_to :composer   has_many :editions end

For my composer controller I have: class ComposerController < ApplicationController   def show     @composer = Composer.find(params[:id])   end end

Then in the view I'm having problems with this line:   <% @composer.works.each do |w| %>

Here's the actual error: NameError in Composer#show

Showing composer/show.html.erb where line #5 raised:

uninitialized constant ActionRecord

Extracted source (around line #5):

2: "Works by #{@composer.first_name} #{@composer.last_name}" %> 3: <p>Click on any work to see all available editions of that work.</p> 4: <ul> 5: <% @composer.works.each do |w| %> 6: <li><%= link_to w.title, 7: :controller => "work", 8: :action => "show",

I think it's having a problem with me calling "works" on Composer.find(params[:id]) but since work belongs_to composer and composer has_many works, I don't know what the naming error is. Do I have to specify a foreign_key in the method to "works"? If so, what would the default be if not "works".

2

Hi --

3

David A. Black wrote:

Hi --

has_many :works Showing composer/show.html.erb where line #5 raised:

uninitialized constant ActionRecord

<blush/>

My fault. It says ActionRecord in the book; it should be ActiveRecord. Not my finest hour, apparently. But hang in there -- there's some really good stuff in that book :slight_smile:

David

-- Upcoming Rails training from David A. Black and Ruby Power and Light:    ADVANCING WITH RAILS April 14-17 New York City    INTRO TO RAILS June 9-12 Berlin    ADVANCING WITH RAILS June 16-19 Berlin    CORE RAILS June 24-27 London (Skills Matter) See http://www.rubypal.com for more info!

Doh, I should have realized that when there was no reference to "ActionRecord" on google.

Thanks for the quick reply. I love the book by the way. I'm new to programming and I was trying to struggle through "Building Your Own Ruby On Rails Web Applications." A friend of mine recommended "Ruby for Rails" as a better introduction book. It's exactly what I needed, everything just clicks. =)