`AnnouncementController` -> `Admin::AnnouncementController`

app/controllers/admin/announcement_controller.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class AnnouncementController < ApplicationController
+class Admin::AnnouncementController < ApplicationController
   before_action :authenticate_user!
 
   def index

config/locales/views.en.yml

@@ -78,6 +78,7 @@ en:
       twitter: "Share on Twitter"
       tumblr: "Share on Tumblr"
       other: "Share on other apps..."
+  admin:
     announcement:
       index:
         title: :activerecord.models.announcement.other

config/routes.rb

@@ -13,12 +13,12 @@ Rails.application.routes.draw do
     mount PgHero::Engine, at: "/pghero", as: "pghero"
 
     get "/admin", to: "admin/dashboard#index", as: :admin_dashboard
-    get "/admin/announcements", to: "announcement#index", as: :announcement_index
-    post "/admin/announcements", to: "announcement#create", as: :announcement_create
-    get "/admin/announcements/new", to: "announcement#new", as: :announcement_new
-    get "/admin/announcements/:id/edit", to: "announcement#edit", as: :announcement_edit
-    patch "/admin/announcements/:id", to: "announcement#update", as: :announcement_update
-    delete "/admin/announcements/:id", to: "announcement#destroy", as: :announcement_destroy
+    get "/admin/announcements", to: "admin/announcement#index", as: :announcement_index
+    post "/admin/announcements", to: "admin/announcement#create", as: :announcement_create
+    get "/admin/announcements/new", to: "admin/announcement#new", as: :announcement_new
+    get "/admin/announcements/:id/edit", to: "admin/announcement#edit", as: :announcement_edit
+    patch "/admin/announcements/:id", to: "admin/announcement#update", as: :announcement_update
+    delete "/admin/announcements/:id", to: "admin/announcement#destroy", as: :announcement_destroy
   end
 
   # Routes only accessible by moderators (moderation panel)

spec/controllers/admin/announcement_controller_spec.rb

@@ -2,7 +2,7 @@
 
 require "rails_helper"
 
-describe AnnouncementController, type: :controller do
+describe Admin::AnnouncementController, type: :controller do
   let(:user) { FactoryBot.create(:user, roles: [:administrator]) }
 
   describe "#index" do