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: request_controller.rb
    path of file: ./repos/open-build-service/src/api/app/controllers
    
    the code of the file until where you have to start completion: include MaintenanceHelper

class RequestController < ApplicationController
  validate_action show: { method: 
    
  def request_create
    BsRequest.transaction do
      @req = BsRequest.new_from_xml(request.raw_post.to_s)
      authorize @req, :create?
      @req.set_add_revision       if params[:addrevision].present?
      @req.set_ignore_delegate    if params[:ignore_delegate].present?
      @req.set_ignore_build_state if params[:ignore_build_state].present?
      @req.save!
      Suse::Validator.validate(:request, @req.render_xml)
    end

    render xml: @req.render_xml
  end