Fix for duplicate entries in app or schema collection.

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Apps/MongoAppEntity.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using MongoDB.Bson.Serialization.Attributes;
+using NodaTime;
 using Squidex.Domain.Apps.Entities.Apps.DomainObject;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.States;
@@ -26,6 +27,10 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
         [BsonElement("_dl")]
         public bool IndexedDeleted { get; set; }
 
+        [BsonIgnoreIfDefault]
+        [BsonElement("_ct")]
+        public Instant IndexedCreated { get; set; }
+
         public override void Prepare()
         {
             var users = new HashSet<string>
@@ -37,6 +42,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
             users.AddRange(Document.Clients.Keys);
 
             IndexedUserIds = users.ToArray();
+            IndexedCreated = Document.Created;
             IndexedDeleted = Document.IsDeleted;
             IndexedName = Document.Name;
         }

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Apps/MongoAppRepository.cs

@@ -48,7 +48,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
         {
             using (Telemetry.Activities.StartActivity("MongoAppRepository/QueryIdsAsync"))
             {
-                var find = Collection.Find(x => x.IndexedUserIds.Contains(contributorId) && !x.IndexedDeleted);
+                var find = Collection.Find(x => x.IndexedUserIds.Contains(contributorId) && !x.IndexedDeleted).SortBy(x => x.IndexedCreated);
 
                 return await QueryAsync(find, ct);
             }
@@ -59,7 +59,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
         {
             using (Telemetry.Activities.StartActivity("MongoAppRepository/QueryAsync"))
             {
-                var find = Collection.Find(x => names.Contains(x.IndexedName) && !x.IndexedDeleted);
+                var find = Collection.Find(x => names.Contains(x.IndexedName) && !x.IndexedDeleted).SortBy(x => x.IndexedCreated);
 
                 return await QueryAsync(find, ct);
             }
@@ -70,13 +70,20 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
         {
             var entities = await find.Only(x => x.DocumentId, x => x.IndexedName).ToListAsync(ct);
 
-            return entities.Select(x =>
+            var result = new Dictionary<string, DomainId>();
+
+            foreach (var entity in entities)
             {
-                var indexedId = DomainId.Create(x["_id"].AsString);
-                var indexedName = x["_an"].AsString;
+                var indexedId = DomainId.Create(entity["_id"].AsString);
+                var indexedName = entity["_an"].AsString;
+
+                if (!result.ContainsKey(indexedName))
+                {
+                    result.Add(indexedName, indexedId);
+                }
+            }
 
-                return new { indexedName, indexedId };
-            }).ToDictionary(x => x.indexedName, x => x.indexedId);
+            return result;
         }
     }
 }

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Schemas/MongoSchemaEntity.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using MongoDB.Bson.Serialization.Attributes;
+using NodaTime;
 using Squidex.Domain.Apps.Entities.Schemas.DomainObject;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.States;
@@ -30,12 +31,17 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Schemas
         [BsonElement("_dl")]
         public bool IndexedDeleted { get; set; }
 
+        [BsonIgnoreIfDefault]
+        [BsonElement("_ct")]
+        public Instant IndexedCreated { get; set; }
+
         public override void Prepare()
         {
             IndexedAppId = Document.AppId.Id;
             IndexedDeleted = Document.IsDeleted;
             IndexedId = Document.Id;
             IndexedName = Document.SchemaDef.Name;
+            IndexedCreated = Document.Created;
         }
     }
 }

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Schemas/MongoSchemaRepository.cs

@@ -46,7 +46,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Schemas
         {
             using (Telemetry.Activities.StartActivity("MongoSchemaRepository/QueryAsync"))
             {
-                var find = Collection.Find(x => x.IndexedAppId == appId && !x.IndexedDeleted);
+                var find = Collection.Find(x => x.IndexedAppId == appId && !x.IndexedDeleted).SortBy(x => x.IndexedCreated);
 
                 return await QueryAsync(find, ct);
             }
@@ -57,13 +57,20 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Schemas
         {
             var entities = await find.Only(x => x.IndexedId, x => x.IndexedName).ToListAsync(ct);
 
-            return entities.Select(x =>
+            var result = new Dictionary<string, DomainId>();
+
+            foreach (var entity in entities)
             {
-                var indexedId = DomainId.Create(x["_si"].AsString);
-                var indexedName = x["_sn"].AsString;
+                var indexedId = DomainId.Create(entity["_si"].AsString);
+                var indexedName = entity["_sn"].AsString;
+
+                if (!result.ContainsKey(indexedName))
+                {
+                    result.Add(indexedName, indexedId);
+                }
+            }
 
-                return new { indexedName, indexedId };
-            }).ToDictionary(x => x.indexedName, x => x.indexedId);
+            return result;
         }
     }
 }