view db/migrate/.svn/text-base/20090406161854_add_parent_id_to_enumerations.rb.svn-base @ 337:d67a7d67b159 cannam-pre-20110113-merge

Ensure the repository URL is marked read-only for external repos; add note about being updated hourly

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