routes - Rails "/blog" path uninitialized constant Blog -

i trying setup rails blog @ "website.com/blog" url

i have models , controller setup work going to

website.com/posts 

gives me posts , going to

website.com/posts/1/ 

shows me post, etc, etc. want happen when go

website.com/blog/ 

i should see posts index (and original url should no longer work). want go to

website.com/blog/posts/1/ 

to see post , on , forth.

right routes file:

rails.application.routes.draw   namespace :blog      resources :posts        resources :comments     end   end    "/blog", to: "posts#index" end 

when go "/blog/" routing error saying "uninitialized constant blog". need create blog model , controller , migrate complete this? i'd rather not since it's running posts requests new url. going wrong way?

i ended finding answer own question here: http://guides.rubyonrails.org/routing.html#controller-namespaces-and-routing

using seems work fine:

scope '/blog'     resources :posts          resources :comments     end end  "/blog", to: "posts#index" 

the answer ended being found here: http://guides.rubyonrails.org/routing.html#controller-namespaces-and-routing

as usual solution incredibly simple , made me feel idiot not knowing immediately:

scope '/blog'     resources :posts          resources :comments     end end  "/blog", to: "posts#index"