routes.rb

ActionController::Routing::Routes.draw do |map|
  map.namespace(:member) do |member|

    member.with_options(:controller => 'messages') do |messages|
      messages.resources :messages,
        :collection => { :move => :post,
                         :copy => :post,
                         :mark_as_read => :post,
                         :mark_as_unread => :post,
                         :search => :get
                       },
        :member => { :reply => :get }
      messages.new_message_to 'messages/new/:user_id', :action => "new"
    end
  end
end