annotate db/migrate/104_add_projects_lft_and_rgt.rb @ 231:5d6e2819f3dd cannam-pre-20110113-merge

Merge from branch "feature_20".  This initial implementation of #20 has been tested, but needs to be tested again in the proper context.

class AddProjectsLftAndRgt < ActiveRecord::Migration
  def self.up
    add_column :projects, :lft, :integer
    add_column :projects, :rgt, :integer
  end

  def self.down
    remove_column :projects, :lft
    remove_column :projects, :rgt
  end
end