Mercurial > hg > soundsoftware-site

view db/migrate/20090406161854_add_parent_id_to_enumerations.rb @ 21:d0cd1f6335a5 cannam

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* Create branch "cannam"
author Chris Cannam <chris.cannam@soundsoftware.ac.uk>
date Thu, 23 Sep 2010 16:19:06 +0100
parents 513646585e45
children
line wrap: on
line source
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