Details Lerngruppe, Archiv, Stub Import

LehrerApp.Data/LiteDbContext.cs

@@ -16,6 +16,7 @@ public class LiteDbContext : IDisposable
         {
             Connection = ConnectionType.Shared,
         });
+        MigrateExistingData();
         EnsureIndexes();
     }
 
@@ -38,11 +39,25 @@ public class LiteDbContext : IDisposable
 
     public void Checkpoint() => _db.Checkpoint();
 
+    private void MigrateExistingData()
+    {
+        var groups = _db.GetCollection<BsonDocument>("groups");
+        var missingArchiveState = groups.FindAll()
+            .Where(g => !g.ContainsKey(nameof(LearningGroup.IsActive)))
+            .ToList();
+        foreach (var group in missingArchiveState)
+        {
+            group[nameof(LearningGroup.IsActive)] = true;
+            groups.Update(group);
+        }
+    }
+
     private void EnsureIndexes()
     {
         Students.EnsureIndex(x => x.LastName);
         Students.EnsureIndex(x => x.IsActive);
         Groups.EnsureIndex(x => x.SchoolYear);
+        Groups.EnsureIndex(x => x.IsActive);
         Enrollments.EnsureIndex(x => x.StudentId);
         Enrollments.EnsureIndex(x => x.GroupId);
         Enrollments.EnsureIndex(x => x.SchoolYear);