[Rails] Nest Resources including sessions in Rails 3 Issue

[SMR]

Hello all -

I have looked through the newsgroups and been unable to find my
specific issue, or a resolution, and I am stuck, so I am posting to
ask for help, or a link to something I may have missed.

I have an application that allows users to log in, create a project
and associate locations with their projects.

I am using nested resources to map users to projects to resources as
follows:

DEMO03::Application.routes.draw do
  root :to => "sessions#new"

resources :sessions

    resources :users do
      resources :projects do
        resources :locations
      end
    end

  get "logout" => "sessions#destroy", :as => "logout"
  get "login" => "sessions#new", :as => "login"
  get "signup" => "users#new", :as => "signup"
  get "secret" => "secret#index"
end

If I run rake routes, I get routes that allow me to get to
user_project_locations and user_projects (among others). However, when
I attempt to redirect_to user_project_locations from my sessions
controller after creating a new session as follows:

  def create
    user = User.find_by_email(params[:email])
    if user && user.authenticate(params[:password])
      session[:user_id] = user.id
      redirect_to user_projects, :notice => "#{current_user.email}
logged in."
    else
      flash.now.alert = "Invalid email or password"
      render "new"
    end
  end

I received an error indicating there was no index method in my
sessions controller. I tried adding the following:

  def index
    redirect_to user_projects, :notice => "#{current_user.email}
logged in - from Controller index."
  end

and got the following:

undefined local variable or method `user_projects' for
#<SessionsController:0x00000103d61380>

It looks like for some reason I cannot use named routes that rake
output suggests should be available.

I also tried nesting user, project and location inside sessions (which
intuitively seemed wrong, but tried it anyway) - which also didn't
work.

Not sure how to diagnose further. Any assistance would be appreciated.

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