fix：一元拟合预测规则

models/edb_info.go

@@ -784,11 +784,6 @@ func GetPredictDataListByPredictEdbInfo(edbInfo *EdbInfo, order int, startDate s
 
 // GetPredictDataListByPredictEdbConfList 根据预测指标信息获取预测指标的数据，order:1升序，其余值为降序
 func GetPredictDataListByPredictEdbConfList(edbInfo, sourceEdbInfoItem *EdbInfo, predictEdbConfList []*PredictEdbConfAndData, order int, startDate string) (dataList []*EdbInfoSearchData, err error, errMsg string) {
-	if len(predictEdbConfList) == 0 {
-		errMsg = "获取预测指标配置信息失败"
-		err = errors.New(errMsg)
-		return
-	}
 
 	allDataList := make([]*EdbInfoSearchData, 0)
 	//获取指标数据（实际已生成）
@@ -820,10 +815,12 @@ func GetPredictDataListByPredictEdbConfList(edbInfo, sourceEdbInfoItem *EdbInfo,
 	endDateStr := edbInfo.EndDate //预测指标的结束日期
 
 	var predictMinValue, predictMaxValue float64
-	predictDataList, predictMinValue, predictMaxValue, err = GetChartPredictEdbInfoDataListByConfList(predictEdbConfList, startDate, sourceEdbInfoItem.LatestDate, endDateStr, edbInfo.Frequency, allDataList)
-
-	if err != nil {
-		return
+	// 如果有配置的预测规则，那么就进行预测
+	if len(predictEdbConfList) > 0 {
+		predictDataList, predictMinValue, predictMaxValue, err = GetChartPredictEdbInfoDataListByConfList(predictEdbConfList, startDate, sourceEdbInfoItem.LatestDate, endDateStr, edbInfo.Frequency, allDataList)
+		if err != nil {
+			return
+		}
 	}
 
 	//order:1升序，其余值为降序