Trouble Upgrading Rails 2 Routes for a Redmine Plugin - ruby-on-rails

Question

I am trying to get a Redmine plugin designed for Rails 2 to work with Rails 3.
https://github.com/dalyons/redmine-todos-scrum-plugin
I've pretty much fixed most parts, but having no success whatsoever in getting the routes to work.
The original routes for Rails 2 are as follows:
map.resources :todos, :name_prefix => 'project_', :path_prefix => '/projects/:project_id',
:member => {:toggle_complete => :post }, :collection => {:sort => :post}
map.resources :todos, :name_prefix => 'user_', :path_prefix => '/users/:user_id', :controller => :mytodos,
:member => {:toggle_complete => :post }, :collection => {:sort => :post}
map.my_todos 'my/todos', :controller => :mytodos, :action => :index
map.connect 'projects/:project_id/todos/show/:id', :controller => "todos", :action => "show"
rake routes outputs the following:
sort_project_todos POST /projects/:project_id/todos/sort(.:format) {:controller=>"todos", :action=>"sort"}
project_todos GET /projects/:project_id/todos(.:format) {:controller=>"todos", :action=>"index"}
POST /projects/:project_id/todos(.:format) {:controller=>"todos", :action=>"create"}
new_project_todo GET /projects/:project_id/todos/new(.:format) {:controller=>"todos", :action=>"new"}
toggle_complete_project_todo POST /projects/:project_id/todos/:id/toggle_complete(.:format) {:controller=>"todos", :action=>"toggle_complete"}
edit_project_todo GET /projects/:project_id/todos/:id/edit(.:format) {:controller=>"todos", :action=>"edit"}
project_todo GET /projects/:project_id/todos/:id(.:format) {:controller=>"todos", :action=>"show"}
PUT /projects/:project_id/todos/:id(.:format) {:controller=>"todos", :action=>"update"}
DELETE /projects/:project_id/todos/:id(.:format) {:controller=>"todos", :action=>"destroy"}
sort_user_todos POST /users/:user_id/todos/sort(.:format) {:controller=>"mytodos", :action=>"sort"}
user_todos GET /users/:user_id/todos(.:format) {:controller=>"mytodos", :action=>"index"}
POST /users/:user_id/todos(.:format) {:controller=>"mytodos", :action=>"create"}
new_user_todo GET /users/:user_id/todos/new(.:format) {:controller=>"mytodos", :action=>"new"}
toggle_complete_user_todo POST /users/:user_id/todos/:id/toggle_complete(.:format) {:controller=>"mytodos", :action=>"toggle_complete"}
edit_user_todo GET /users/:user_id/todos/:id/edit(.:format) {:controller=>"mytodos", :action=>"edit"}
user_todo GET /users/:user_id/todos/:id(.:format) {:controller=>"mytodos", :action=>"show"}
PUT /users/:user_id/todos/:id(.:format) {:controller=>"mytodos", :action=>"update"}
DELETE /users/:user_id/todos/:id(.:format) {:controller=>"mytodos", :action=>"destroy"}
my_todos /my/todos {:controller=>"mytodos", :action=>"index"}
/projects/:project_id/todos/show/:id {:controller=>"todos", :action=>"show"}
The nearest I have got for Rails 3 is as follows:
scope '/projects/:project_id', :name_prefix => 'project_' do
resources :todos, :controller => 'todos' do
member do
post :toggle_complete
end
collection do
post :sort
end
end
end
scope '/users/:user_id', :name_prefix => 'user_' do
resources :todos, :controller => 'mytodos' do
member do
post :toggle_complete
end
collection do
post :sort
end
end
end
match 'my/todos' => 'mytodos#index', :as => :my_todos
match 'projects/:project_id/todos/show/:id' => 'todos#show'
rake routes outputs the following:
toggle_complete_todo POST /projects/:project_id/todos/:id/toggle_complete(.:format) todos#toggle_complete {:name_prefix=>"project_"}
sort_todos POST /projects/:project_id/todos/sort(.:format) todos#sort {:name_prefix=>"project_"}
todos GET /projects/:project_id/todos(.:format) todos#index {:name_prefix=>"project_"}
POST /projects/:project_id/todos(.:format) todos#create {:name_prefix=>"project_"}
new_todo GET /projects/:project_id/todos/new(.:format) todos#new {:name_prefix=>"project_"}
edit_todo GET /projects/:project_id/todos/:id/edit(.:format) todos#edit {:name_prefix=>"project_"}
todo GET /projects/:project_id/todos/:id(.:format) todos#show {:name_prefix=>"project_"}
PUT /projects/:project_id/todos/:id(.:format) todos#update {:name_prefix=>"project_"}
DELETE /projects/:project_id/todos/:id(.:format) todos#destroy {:name_prefix=>"project_"}
POST /users/:user_id/todos/:id/toggle_complete(.:format) mytodos#toggle_complete {:name_prefix=>"user_"}
POST /users/:user_id/todos/sort(.:format) mytodos#sort {:name_prefix=>"user_"}
GET /users/:user_id/todos(.:format) mytodos#index {:name_prefix=>"user_"}
POST /users/:user_id/todos(.:format) mytodos#create {:name_prefix=>"user_"}
GET /users/:user_id/todos/new(.:format) mytodos#new {:name_prefix=>"user_"}
GET /users/:user_id/todos/:id/edit(.:format) mytodos#edit {:name_prefix=>"user_"}
GET /users/:user_id/todos/:id(.:format) mytodos#show {:name_prefix=>"user_"}
PUT /users/:user_id/todos/:id(.:format) mytodos#update {:name_prefix=>"user_"}
DELETE /users/:user_id/todos/:id(.:format) mytodos#destroy {:name_prefix=>"user_"}
my_todos /my/todos(.:format) mytodos#index
/projects/:project_id/todos/show/:id(.:format) todos#show
I am guessing that I am not using :name_prefix correctly, resulting in duplicate paths which are then omitted.
Any help would be greatly appreciated.
EDIT
I'm not sure whether this is the best way, but the following routes are working with Rails 3:
scope '/projects/:project_id' do
resources :todos, :controller => 'todos', :as => 'project_todos' do
member do
post :toggle_complete
end
collection do
post :sort
end
end
end
scope '/users/:user_id' do
resources :todos, :controller => 'mytodos', :as => 'user_todos' do
member do
post :toggle_complete
end
collection do
post :sort
end
end
end
match 'my/todos' => 'mytodos#index', :as => :my_todos
match 'projects/:project_id/todos/show/:id' => 'todos#show'
I removed :name_prefix from the scope and added :as to resource.