From 002da7047142b848db56315a39fcb88dcd11e49d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A4=D1=80=D0=BE=D0=BB=D0=BE=D0=B2?= <frolov@elkam.ru>
Date: Sun, 29 Aug 2021 12:05:43 +0500
Subject: [PATCH] fix CalcStat on empty operations list

---
 AsbCloudInfrastructure/Services/WellOperationsStatService.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/AsbCloudInfrastructure/Services/WellOperationsStatService.cs b/AsbCloudInfrastructure/Services/WellOperationsStatService.cs
index 1f608a44..0798c683 100644
--- a/AsbCloudInfrastructure/Services/WellOperationsStatService.cs
+++ b/AsbCloudInfrastructure/Services/WellOperationsStatService.cs
@@ -195,11 +195,15 @@ namespace AsbCloudInfrastructure.Services
                 .Where(o => o.IdWellSectionType == idSectionType)
                 .OrderBy(o => o.Start)
                 .ThenBy(o => o.WellDepth);
+            
             return CalcStat(sectionOperations);
         }
 
         private static StatOperationsDto CalcStat(IEnumerable<OperationParams> operations)
         {
+            if (!operations.Any())
+                return null;
+
             var races = GetCompleteRaces(operations);
 
             var section = new StatOperationsDto