workmad3

map.resources :forums, :shallow => true do |forum|
   forum.resources :topics, :member => {:sort_asc => :get}, :shallow => true do |topic|
     topic.resources :replies
   end
end

workmad3

ActionController::Routing::Routes.draw do |map|

  # twitter app stuff
  map.connect '/accounts/callback', :controller => 'accounts', :action => 'callback' 
  map.resources :accounts, :collection => { :callback => :get}, :members => {:do_update => :post}
  map.resources :feeds  
  map.resources :feed_entries
end

workmad3

class Student
   has_many :enrollments
   has_many :courses, :through => :enrollments
   has_many :submissions
   has_many :assignments, :through => :submissions
end

class Enrollment
   belongs_to :student
   belongs_to :course

workmad3

require 'autotest/growl'
require 'autotest/fsevent'

workmad3

>> module ActiveRecord
>> class Base
>> end
>> end
=> nil
>> module ActiveRecord
>> class Error
>> def initialize
>> puts "AR::Error"
>> end

workmad3

class Feed < ActiveRecord::Base
  has_many :subscriptions
  has_many :users, :through => :subscriptions
  belongs_to :owner, :class_name => "User"
end

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path File.expand_path('..', __FILE__)
source :gemcutter

gem "rails", "3.0.0.beta"

gem "rake",  ">= 0.8.7"
gem "mocha", ">= 0.9.8"

if RUBY_VERSION < '1.9'
  gem "ruby-debug", ">= 0.10.3"

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# Use Bundler (preferred)
begin
  require File.expand_path('../../.bundle/environment', __FILE__)
rescue LoadError
  require 'rubygems'
  require 'bundler'
  Bundler.setup

  # To use 2.x style vendor/rails and RubyGems
  #

workmad3

This example shows how to setup an environment running Rails 3 beta under 1.9.1 with a 'rails3' gem set.

∴ rvm update --head
# ((Open a new shell))

# If you do not already have the ruby interpreter installed, install it:
∴ rvm install 1.9.1 

# Use the ruby + gem set
∴ rvm 1.9.1%rails3

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class Request < ActiveRecord::Base
  before_save :reduce_users_karma

  validate :validate_karma
  def validate_karma
    if user
      errors.add(:karma, "You don't have enough karma") unless user.karma_current > karma
    else
      errors.add(:user, "No user in request")
    end