fixing reviewable routes

config/routes.rb

@@ -30,7 +30,7 @@ Rails.application.routes.draw do
   end
 
   concern :reviewable do
-    resources :reviews, except: :update, concern: :deletable do
+    resources :reviews, only: [:index, :create, :show, :destroy], concerns: :deletable do
       member do
         post :rate
       end