20120204142758_create_login_records.rb

class CreateLoginRecords < ActiveRecord::Migration
  def self.up
    create_table :login_records do |t|
      t.integer :user_id
      t.datetime :logged_in

      t.timestamps
    end
    add_index(:login_records, :user_id)
    add_index(:login_records, :logged_in)
  end

  def self.down
    drop_table :login_records
    #_should_ remove indexes as well, but if not, you need to remove_index/drop_index/del_index here
  end
end