Generating association while generating model

May be you guys are already aware of, but in Rails 2.2 we can specify belongs_to association while generating model. So if we issue:

script/generate model Post title:string author:belongs_to

We will get a Post model like:

class Post < ActiveRecord::Base
  belongs_to :author
end

Also it will automatically add the foreign key column in the migration.

class CreatePosts < ActiveRecord::Migration
  def self.up
    create_table :posts do |t|
      t.string :title
      t.belongs_to :author

      t.timestamps
    end
  end

  def self.down
    drop_table :posts
  end
end

Nothing much but saves some keystrokes.