view db/migrate/20090406161854_add_parent_id_to_enumerations.rb @ 610:e9274ba9c1b3 feature_36

Fixes Bug #272 - the toggle author button calls button_to_remote instead of button_to, which does not have a type="submit" tag. Minor interface changes.

class AddParentIdToEnumerations < ActiveRecord::Migration
  def self.up
    add_column :enumerations, :parent_id, :integer, :null => true, :default => nil
  end

  def self.down
    remove_column :enumerations, :parent_id
  end
end