osem-fcy/app/controllers/admin/programs_controller.rb

module Admin
  class ProgramsController < Admin::BaseController
    load_and_authorize_resource :conference, find_by: :short_title
    load_and_authorize_resource through: :conference, singleton: true

    def show; end

    def edit; end

    def update
      authorize! :update, @conference.program
      @program = @conference.program
      @program.assign_attributes(program_params)
      send_mail_on_schedule_public = @program.notify_on_schedule_public?

      respond_to do |format|
        if @program.update_attributes(program_params)
          ConferenceScheduleUpdateMailJob.perform_later(@conference) if send_mail_on_schedule_public
          format.html do
            redirect_to admin_conference_program_path(@conference.short_title),
                        notice: 'The program was successfully updated.'
          end
          format.js { render json: { 'status' => 'ok' } }
        else
          format.html do
            flash[:error] = "Updating program failed. #{@program.errors.to_a.join('. ')}."
            render :new
          end
          format.js { render json: { 'status' => 'error' } }
        end
      end
    end

    private

    def program_params
      params.require(:program).permit(:rating, :schedule_public, :schedule_fluid, :languages, :blind_voting, :voting_start_date, :voting_end_date, :selected_schedule_id)
    end
  end
end