Add transaction support between services

Hcs.WebApp/BackgroundServices/CampaignManagers/ExportRequiredRegistryElementsManager_15_7_0_1.cs

@@ -1,12 +1,24 @@
 using Hcs.WebApp.Data.Hcs;
+using Hcs.WebApp.Services;
 
 namespace Hcs.WebApp.BackgroundServices.CampaignManagers
 {
-    public class ExportRequiredRegistryElementsManager_15_7_0_1(OperationExecutionState state, IServiceScopeFactory scopeFactory, Campaign campaign) : ManagerBase(state, scopeFactory, campaign)
+    public class ExportRequiredRegistryElementsManager_15_7_0_1(IServiceScope scope, OperationExecutionState state, Campaign campaign) : ManagerBase(scope, state, campaign)
     {
         public override async Task StartAsync(CancellationToken cancellationToken)
         {
-            // TODO
+            var headquartersService = scope.ServiceProvider.GetRequiredService<HeadquartersService>();
+            var registryService = scope.ServiceProvider.GetRequiredService<RegistryService>();
+            using var context = headquartersService.GetNewContext();
+            using var transaction = await context.Database.BeginTransactionAsync(cancellationToken);
+            try
+            {
+                // TODO
+            }
+            catch
+            {
+                throw;
+            }
         }
     }
 }