discourse/db/migrate/20120921055428_add_twitter_user_info.rb

class AddTwitterUserInfo < ActiveRecord::Migration
  def change
    create_table :twitter_user_infos do  |t|
      t.integer :user_id, :null => false
      t.string :screen_name, :null => false
      t.integer :twitter_user_id, :null => false
      t.timestamps
    end

    add_index :twitter_user_infos, [:twitter_user_id], :unique => true
    add_index :twitter_user_infos, [:user_id], :unique => true
  end
end