output

/2/admin/users/2/edit

i.e.

/user_id/admin/users/user_id/edit

This should error with a "No route matches" error because there's not enough parameters handed to the helper. It's not.

routes.rb

scope :path => ":account_id" do
  namespace :admin do
     resources :users
  end
end

view.html.erb

<%= puts edit_admin_user_path(@user) %>
<%= link_to "Edit", edit_admin_user_path(@user) %>

Your Turn.md

Now try this:

git clone git://github.com/rails3book/ticketee
cd ticketee
git checkout origin/account_scoping -b account_scoping
bundle install
bundle exec cucumber features/assigning_permissions.feature:32

You should get the same non-error that I am. This is the only way I can reproduce this issue.

Looks like ActionDispatch::Routing::RouteSet#handle_positional_args is deciding to assign :account_id from the User object. :id is also somehow assigned from the User object. I didn't investigate too much further here.

What's going on is that handle_positional_args is assigning the :account_id from the user object and the :id parameter is being filled from the request's path parameters. The permissions url fails to generate because :user_id is not in the path parameters for the show action. Using hash arguments generates both urls correctly as :account_id is filled from the path parameters. e.g:

<%= link_to "Delete", admin_user_path(:id => @user), :method => :delete, :confirm => "Are you sure you want to delete this user?" %>
<%= link_to "Permissions", admin_user_permissions_path(:user_id => @user) %>

Free books all round? Or do we have to share? lol