Small fixes.

src/Squidex.Domain.Apps.Core.Model/Schemas/Json/JsonSchemaModel.cs

@@ -38,7 +38,7 @@ namespace Squidex.Domain.Apps.Core.Schemas.Json
         public JsonFieldModel[] Fields { get; set; }
 
         [JsonProperty]
-        public IReadOnlyDictionary<string, string> PreviewUrls { get; set; }
+        public Dictionary<string, string> PreviewUrls { get; set; }
 
         public JsonSchemaModel()
         {
@@ -61,6 +61,8 @@ namespace Squidex.Domain.Apps.Core.Schemas.Json
                         Partitioning = x.Partitioning.Key,
                         Properties = x.RawProperties
                     });
+
+            PreviewUrls = schema.PreviewUrls.ToDictionary(x => x.Key, x => x.Value);
         }
 
         private static JsonNestedFieldModel[] CreateChildren(IField field)

src/Squidex.Domain.Apps.Entities/Schemas/SchemaHistoryEventsCreator.cs

@@ -19,10 +19,10 @@ namespace Squidex.Domain.Apps.Entities.Schemas
         public SchemaHistoryEventsCreator(TypeNameRegistry typeNameRegistry)
             : base(typeNameRegistry)
         {
-            AddEventMessage("SchemaCreated",
+            AddEventMessage("SchemaCreatedEvent",
                 "created schema {[Name]}.");
 
-            AddEventMessage("ScriptsConfigured",
+            AddEventMessage("ScriptsConfiguredEvent",
                 "configured script of schema {[Name]}.");
 
             AddEventMessage<SchemaFieldsReordered>(

src/Squidex/Areas/Api/Controllers/Schemas/Models/UpsertDto.cs

@@ -20,14 +20,14 @@ namespace Squidex.Areas.Api.Controllers.Schemas.Models
         public SchemaPropertiesDto Properties { get; set; }
 
         /// <summary>
-        /// Optional fields.
+        /// The optional scripts.
         /// </summary>
-        public List<UpsertSchemaFieldDto> Fields { get; set; }
+        public SchemaScriptsDto Scripts { get; set; }
 
         /// <summary>
-        /// The optional scripts.
+        /// Optional fields.
         /// </summary>
-        public Dictionary<string, string> Scripts { get; set; }
+        public List<UpsertSchemaFieldDto> Fields { get; set; }
 
         /// <summary>
         /// The optional preview urls.
@@ -55,23 +55,34 @@ namespace Squidex.Areas.Api.Controllers.Schemas.Models
                 SimpleMapper.Map(dto.Properties, command.Properties);
             }
 
+            if (dto.Scripts != null)
+            {
+                command.Scripts = new SchemaScripts();
+
+                SimpleMapper.Map(dto.Scripts, command.Scripts);
+            }
+
             if (dto.Fields != null)
             {
                 command.Fields = new List<UpsertSchemaField>();
 
-                foreach (var fieldDto in dto.Fields)
+                foreach (var rootFieldDto in dto.Fields)
                 {
-                    var rootProperties = fieldDto?.Properties.ToProperties();
-                    var rootField = SimpleMapper.Map(fieldDto, new UpsertSchemaField { Properties = rootProperties });
+                    var rootProps = rootFieldDto?.Properties.ToProperties();
+                    var rootField = new UpsertSchemaField { Properties = rootProps };
+
+                    SimpleMapper.Map(rootFieldDto, rootField);
 
-                    if (fieldDto.Nested != null)
+                    if (rootFieldDto.Nested?.Count > 0)
                     {
                         rootField.Nested = new List<UpsertSchemaNestedField>();
 
-                        foreach (var nestedFieldDto in fieldDto.Nested)
+                        foreach (var nestedFieldDto in rootFieldDto.Nested)
                         {
-                            var nestedProperties = nestedFieldDto?.Properties.ToProperties();
-                            var nestedField = SimpleMapper.Map(nestedFieldDto, new UpsertSchemaNestedField { Properties = nestedProperties });
+                            var nestedProps = nestedFieldDto?.Properties.ToProperties();
+                            var nestedField = new UpsertSchemaNestedField { Properties = nestedProps };
+
+                            SimpleMapper.Map(nestedFieldDto, nestedField);
 
                             rootField.Nested.Add(nestedField);
                         }

tools/Migrate_01/OldEvents/ScriptsConfigured.cs

@@ -6,7 +6,6 @@
 // ==========================================================================
 
 using System;
-using System.Collections.Generic;
 using Squidex.Domain.Apps.Core.Schemas;
 using Squidex.Domain.Apps.Events;
 using Squidex.Domain.Apps.Events.Schemas;