class <%= class_name %> < ActiveRecord::Migration
  @tablename = :settings
  
  def self.up
    create_table @tablename do |t|
      t.string :key, :null => false
      t.text :value   
    end
    add_index @tablename, :key
  end

  def self.down
    remove_index @tablename, :key
    drop_table @tablename
  end
end