Replace alias_method_chain with Module#prepend

[rails.git] / db / migrate / 038_add_message_sender_index.rb

class AddMessageSenderIndex < ActiveRecord::Migration
  def self.up
    add_index :messages, [:from_user_id], :name => "messages_from_user_id_idx"
  end

  def self.down
    remove_index :messages, :name => "messages_from_user_id_idx"
  end
end