server/AyaNova/biz/UnitMeterReadingBiz.cs

@@ -154,6 +154,7 @@ namespace AyaNova.Biz
                 var batchResults = await ct.UnitMeterReading.AsNoTracking().Where(z => batch.Contains(z.Id)).ToArrayAsync();
                 //order the results back into original
                 var orderedList = from id in batch join z in batchResults on id equals z.Id select z;
+                batchResults = null;
                 foreach (UnitMeterReading w in orderedList)
                 {
                     if (!ReportRenderManager.KeepGoing(jobId)) return null;
@@ -161,17 +162,27 @@ namespace AyaNova.Biz
                     var jo = JObject.FromObject(w);
                     ReportData.Add(jo);
                 }
+                orderedList = null;
             }
+            vc.Clear();
             return ReportData;
         }
+        private VizCache vc = new VizCache();
 
 
         //populate viz fields from provided object
         private async Task PopulateVizFields(UnitMeterReading o)
         {
-            o.UnitViz = await ct.Unit.AsNoTracking().Where(x => x.Id == o.UnitId).Select(x => x.Serial).FirstOrDefaultAsync();
+            if (!vc.Has("unitserial", o.UnitId))
+                vc.Add(await ct.Unit.AsNoTracking().Where(x => x.Id == o.UnitId).Select(x => x.Serial).FirstOrDefaultAsync(), "unitserial", o.UnitId);
+            o.UnitViz = vc.Get("unitserial", o.UnitId);
+
             if (o.WorkOrderItemUnitId != null)
-                o.WorkOrderViz = (await WorkOrderBiz.GetWorkOrderSerialFromRelativeAsync(AyaType.WorkOrderItemUnit, (long)o.WorkOrderItemUnitId, ct)).ToString();
+            {
+                if (!vc.Has("woserial", o.WorkOrderItemUnitId))
+                    vc.Add((await WorkOrderBiz.GetWorkOrderSerialFromRelativeAsync(AyaType.WorkOrderItemUnit, (long)o.WorkOrderItemUnitId, ct)).ToString(), "woserial", o.WorkOrderItemUnitId);
+                o.WorkOrderViz = vc.Get("woserial", o.WorkOrderItemUnitId);
+            }
         }
 
 
@@ -199,7 +210,7 @@ namespace AyaNova.Biz
             ILogger log = AyaNova.Util.ApplicationLogging.CreateLogger<UnitMeterReadingBiz>();
             if (ServerBootConfig.SEEDING || ServerBootConfig.MIGRATING) return;
             log.LogDebug($"HandlePotentialNotificationEvent processing:  [AyaType:{this.BizType}, AyaEvent:{ayaEvent}]");
-          
+
             //SPECIFIC EVENTS FOR THIS OBJECT
 
             //UnitMeterReadingMultipleExceeded event