Chris@0: class AddRolePosition < ActiveRecord::Migration Chris@0: def self.up Chris@0: add_column :roles, :position, :integer, :default => 1 Chris@1115: Role.all.each_with_index {|role, i| role.update_attribute(:position, i+1)} Chris@0: end Chris@0: Chris@0: def self.down Chris@0: remove_column :roles, :position Chris@0: end Chris@0: end