view db/migrate/20091017213027_add_missing_indexes_to_comments.rb @ 432:db5df568a7cf live

Refer to MATLAB docs as well as C++/Java

class AddMissingIndexesToComments < ActiveRecord::Migration
  def self.up
    add_index :comments, [:commented_id, :commented_type]
    add_index :comments, :author_id
  end

  def self.down
    remove_index :comments, :column => [:commented_id, :commented_type]
    remove_index :comments, :author_id
  end
end