view db/migrate/104_add_projects_lft_and_rgt.rb @ 1083:0d837624e795 bug_531

If the file is large, acknowledge that it might be too large rather than binary (could be a big text file)

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