Resourceful routing and admin namespace question

[Agis A.]

Hi all. I have a route file like this:

Deals::Application.routes.draw do

  root to: "Main#home"

  resources :vendors do

    resources :offers

  end

  match '/admin' => 'Admin::Pages#index'

  namespace :admin do

    match '/login', to: 'Sessions#new'

    resources :offers, :vendors

    resources :sessions, only: [:new, :create, :destroy]

  end

end

First of all I would like to know if the way I declared the namespace and the matching rules inside it are ok.

Next, I want the visitors of the app (front-end) to be able only to view the :offers and :vendor resources (index & show actions). I only want to allow admins (app.com/admin/blabla) which are the logged users, to be able to manage these resources (edit, add, delete etc). How could I implement this?

Should I do it like this? http://pastie.org/3503560 Or could I just leave it as is and not implement the actions in the public controllers?