if params[:date_format_1] && exp_value.present?
        val1[:date_format] = params[:date_format_1]
        exp_value.collect! { |_| params[:date_format_1] == 's' ? nil : EXP_TODAY }
        val1[:through_choices] = Expression.through_choices(exp_value[0]) if params[:date_format_1] == 'r'
      end