Rails - Sep 2006 - "uninitialized constant Deprecated" with rake db:migrate

I''ve been chuggin along with Agile Web Development with Rails, got up
to
Chapter 13 then discivered the Second Edition of the book.

I installed the latest Edge Rails (to get support for :decimal) so I 
could get a feel for the migrations described in Interatiosn A1 and A2.

I''m working with a brand new rails app and database.

Below are the migration files and the trace from rake. Any ideas whats 
up?  Should I use a different version of Rails, or just roll back to the 
last stable release and not use :integer instead of :decimal just so I 
can get through the lesson?

#001_create_products.rb
class CreateProducts < ActiveRecord::Migration
  def self.up
    create_table :products do |t|
      t.column :title, :string
      t.column :description, :text
      t.column :image_url, :string
    end
  end

  def self.down
    drop_table :products
  end
end

#002_add_price.rb
class AddPrice < ActiveRecord::Migration
  def self.up
    add_column :products, :price, :decimal, :precision => 8, :scale => 
2, :default => 0
  end

  def self.down
    remove_column :products, :price
  end
end

(in C:/projects/railswork/depot2)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
rake aborted!
uninitialized constant Deprecated
C:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:123:in
`const_missing''
C:/projects/railswork/depot2/config/../vendor/rails/actionpack/lib/action_controller/base.rb:211
C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`require''
C:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require''
C:/projects/railswork/depot2/config/../vendor/rails/actionpack/lib/action_controller.rb:37
C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`require''
C:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require''
C:/projects/railswork/depot2/config/../vendor/rails/railties/lib/initializer.rb:160:in
`require_frameworks''
C:/projects/railswork/depot2/config/../vendor/rails/railties/lib/initializer.rb:160:in
`require_frameworks''
C:/projects/railswork/depot2/config/../vendor/rails/railties/lib/initializer.rb:82:in
`process''
C:/projects/railswork/depot2/config/../vendor/rails/railties/lib/initializer.rb:42:in
`run''
C:/projects/railswork/depot2/config/../config/environment.rb:13
C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in 
`require''
C:/projects/railswork/depot2/config/../vendor/rails/railties/lib/tasks/misc.rake:3
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:387:in `execute''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:357:in `invoke''
C:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in `invoke''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:364:in 
`invoke_prerequisites''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:999:in `each''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:363:in 
`invoke_prerequisites''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:356:in `invoke''
C:/ruby/lib/ruby/1.8/thread.rb:135:in `synchronize''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:350:in `invoke''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1906:in `run''
C:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/bin/rake:7
C:/ruby/bin/rake.bat:25




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I think I figured out a good workaround for now..

class AddPrice < ActiveRecord::Migration
  def self.up
    #add_column :products, :price, :decimal, :precision => 8, :scale => 
2, :default => 0
    execute "ALTER TABLE products ADD COLUMN price DECIMAL(8,2) NOT NULL 
DEFAULT 0"
  end

  def self.down
    remove_column :products, :price
  end
end

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On 9/8/06, Brandon Casci
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
> I think I figured out a good workaround for now..
>
> class AddPrice < ActiveRecord::Migration
>   def self.up
>     #add_column :products, :price, :decimal, :precision => 8, :scale
=>
> 2, :default => 0
>     execute "ALTER TABLE products ADD COLUMN price DECIMAL(8,2) NOT
NULL
> DEFAULT 0"
>   end
>
>   def self.down
>     remove_column :products, :price
>   end
> end
So you went to edge rails to get support for :decimal, then completely
work around it?  Why not just go back to "production" rails?

-- 
There is nothing more difficult to take in hand, more perilous to
conduct, or more uncertain in its success, than to take the lead in
the introduction of a new order of things. -- Niccolo Machiavelli

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Sorry, I didn''t specify. I rolled back to gem rails, and then I applied
the work around.


Michael Campbell wrote:
> On 9/8/06, Brandon Casci
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
>>
>>   def self.down
>>     remove_column :products, :price
>>   end
>> end
> 
> So you went to edge rails to get support for :decimal, then completely
> work around it?  Why not just go back to "production" rails?
> 
> --
> There is nothing more difficult to take in hand, more perilous to
> conduct, or more uncertain in its success, than to take the lead in
> the introduction of a new order of things. -- Niccolo Machiavelli

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