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: segment_rules_controller.rb
    path of file: ./repos/workarea/admin/app/controllers/workarea/admin
    
    the code of the file until where you have to start completion: module Workarea
  module Admin
    class SegmentRulesController < Admin::ApplicationController
      before_action :find_segment, except: :geolocation_options
      before_action :find_rules, except: :geolocation_o
    
      def update
        if @rule.update_attributes(params[:rule])
          flash[:success] = t('workarea.admin.segment_rules.flash_messages.saved')
          redirect_to return_to || segment_rules_path(@segment)
        else
          flash[:error] = t('workarea.admin.segment_rules.flash_messages.error')
          render :edit, status: :unprocessable_entity
        end