You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pages_controller.rb
    path of file: ./repos/staytus/app/controllers
    
    the code of the file until where you have to start completion: class PagesController < ApplicationController

  before_action { prepend_view_path(File.join(Staytus::Config.theme_root, 'views')) }
  layout Staytus::Config.theme_name

  def index
    @services = Servic
    
  def subscribe_by_email
    @subscriber = Subscriber.new(:email_address => params[:email_address], :service_ids => params[:service_ids])
    if @subscriber.save
      @subscriber.send_verification_email
      redirect_to root_path, :notice => "Thanks - please check your email and click the link within to confirm your subscription."
    else
      redirect_to subscribe_path, :alert => "The e-mail address you have entered is either invalid or already subscribed to the status site."
    end