admin page

app/controllers/admins_controller.rb

+class AdminsController < ApplicationController
+  def index
+    redirect_to new_user_session_path unless user_signed_in?
+    redirect_to root_path unless current_user.role?
+
+    @all_user = User.all
+  end
+
+  private
+
+  def user_params
+    params.require(:user).permit(:id, :email, :role)
+  end
+end

app/controllers/users/my_pages_controller.rb

 class Users::MyPagesController < ApplicationController
-  before_action :authenticate_user!, only: [:show]
+  before_action :authenticate_user!, only: [:show, :admin_control]
 
   def show
   end

app/views/admins/index.html.erb

+<%= select("user", "email", @all_user.collect {|u| u.email}, {include_blank: true}) %>

config/routes.rb

@@ -11,6 +11,8 @@ Rails.application.routes.draw do
   get "apply", to: "jobs#apply"
   get "confirm", to: "jobs#confirm_apply"
   post "done", to: 'jobs#finish_apply'
+  get "admin", to: "admins#index", as: :admin
+  resources :admin, only: [:index, :show]
   devise_for :users
   root "tops#index"
   namespace :users do