educoder/app/controllers/hack_user_lastest_codes_controller.rb

class HackUserLastestCodesController < ApplicationController
  before_action :require_login
  before_action :find_user_hack, only: [:show]

  def show

  end

  private
  def find_user_hack
    @my_hack = HackUserLastestCode.find_by(identifier: params[:identifier])
    @hack = @my_hack.hack
  end

end