Rails before action check if admin

Question

I installed devise and I've added to the user table a record or column (I'm not sure how to call it) a admin:boolean and by default it's false

In my routes.rb I have created this /admin link

get 'admin' => 'admin#index'

and I'm not sure how to show it only for admin

class AdminController < ApplicationController
  before_action: I have no idea what to write here

  def index
  end

end

Answer 1

Try like this in your controller:

class AdminController < ApplicationController
    before_action :is_admin?

  def index

  end


    # it will call before every action on this controller
    def is_admin?
      # check if user is a admin
      # if not admin then redirect to where ever you want 
      redirect_to root_path unless current_user.admin? 
    end

end