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view db/migrate/20090406161854_add_parent_id_to_enumerations.rb @ 963:a9f1192c9c79 cannam

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Merge from 958:352539ac7b43
author Chris Cannam
date Tue, 16 Oct 2012 16:29:01 +0100
parents 513646585e45
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