Implementation of Video Queue (show queue, add and remove entries)

I chose to create a resource under user to allow access to queues using routes that include the user ID.  But I also kept the my_queue route at root which is sent to the same controller.  The controller is tolerant of an omitted user_id and assumes it to mean the current logged in user.  Note that this complicated my test writing so I had to write extra tests for various cases of user_id supplied and omitted.

Since you have your queue nested beneath a user, params[:user_id] will ALWAYS be provided. If it isn't, the app will throw an exception saying there is no matching route. The code will never get to this point.