Chris@909: class AddRolePosition < ActiveRecord::Migration
Chris@909:   def self.up
Chris@909:     add_column :roles, :position, :integer, :default => 1
Chris@909:     Role.find(:all).each_with_index {|role, i| role.update_attribute(:position, i+1)}
Chris@909:   end
Chris@909: 
Chris@909:   def self.down
Chris@909:     remove_column :roles, :position
Chris@909:   end
Chris@909: end