redmine/db/migrate/018_set_doc_and_files_notifications.rb

class SetDocAndFilesNotifications < ActiveRecord::Migration
  # model removed
  class Permission < ActiveRecord::Base; end

  def self.up
    Permission.find_by_controller_and_action("projects", "add_file").update_attribute(:mail_option, true)
    Permission.find_by_controller_and_action("projects", "add_document").update_attribute(:mail_option, true)
    Permission.find_by_controller_and_action("documents", "add_attachment").update_attribute(:mail_option, true)
    Permission.find_by_controller_and_action("issues", "add_attachment").update_attribute(:mail_option, true)
  end

  def self.down
    Permission.find_by_controller_and_action("projects", "add_file").update_attribute(:mail_option, false)
    Permission.find_by_controller_and_action("projects", "add_document").update_attribute(:mail_option, false)
    Permission.find_by_controller_and_action("documents", "add_attachment").update_attribute(:mail_option, false)
    Permission.find_by_controller_and_action("issues", "add_attachment").update_attribute(:mail_option, false)
  end
end