if params[:date_format_2] && exp_cvalue.present?
        val2[:date_format] = params[:date_format_2]
        exp_cvalue.collect! { |_| params[:date_format_2] == 's' ? nil : EXP_TODAY }
        val2[:through_choices] = Expression.through_choices(exp_cvalue[0]) if params[:date_format_2] == 'r'
      end