view db/migrate/20090406161854_add_parent_id_to_enumerations.rb @ 307:c7d3b58bd01c feature_117

Produce a single en.yml which contains British texts but describes itself as just English.
The difference between en and en-GB is minimal for this application, apart from date formats, and the pain in maintaining both is significant. See #117 and #58.

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