view db/migrate/020_add_role_position.rb @ 420:2008fa7fda29 bug_145

Track the project tree explicitly through recursive functions rather than using lft, rgt ordering.  Fixes #145

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

  def self.down
    remove_column :roles, :position
  end
end