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: applications_controller.rb
    path of file: ./repos/gitlabhq/app/controllers/oauth
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

    
  def show; end

  def create
    @application = Applications::CreateService.new(current_user, application_params).execute(request)

    if @application.persisted?
      flash[:notice] = I18n.t(:notice, scope: [:doorkeeper, :flash, :applications, :create])

      @created = true
      render :show
    else
      set_index_vars
      render :index
    end
  end