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author Chris Cannam <chris.cannam@soundsoftware.ac.uk>
date Tue, 22 Jan 2013 17:11:01 +0000
parents cbb26bc654de
children
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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