Fix for singleton contents.

backend/src/Squidex.Domain.Apps.Entities/Contents/ContentDomainObject.cs

@@ -100,7 +100,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                     {
                         await LoadContext(Snapshot.AppId, Snapshot.SchemaId, c, () => "Failed to create draft.");
 
-                        GuardContent.CanCreateDraft(c, context.Schema, Snapshot);
+                        GuardContent.CanCreateDraft(c, Snapshot);
 
                         var status = await contentWorkflow.GetInitialStatusAsync(context.Schema);
 
@@ -114,7 +114,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                     {
                         await LoadContext(Snapshot.AppId, Snapshot.SchemaId, c, () => "Failed to delete draft.");
 
-                        GuardContent.CanDeleteDraft(c, context.Schema, Snapshot);
+                        GuardContent.CanDeleteDraft(c, Snapshot);
 
                         DeleteDraft(c);
 

backend/src/Squidex.Domain.Apps.Entities/Contents/Guards/GuardContent.cs

@@ -63,30 +63,20 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             await ValidateCanUpdate(content, contentWorkflow, command.User);
         }
 
-        public static void CanDeleteDraft(DeleteContentDraft command, ISchemaEntity schema, ContentState content)
+        public static void CanDeleteDraft(DeleteContentDraft command, ContentState content)
         {
             Guard.NotNull(command);
 
-            if (schema.SchemaDef.IsSingleton)
-            {
-                throw new DomainException("Singleton content cannot be updated.");
-            }
-
             if (content.NewStatus == null)
             {
                 throw new DomainException("There is nothing to delete.");
             }
         }
 
-        public static void CanCreateDraft(CreateContentDraft command, ISchemaEntity schema, ContentState content)
+        public static void CanCreateDraft(CreateContentDraft command, ContentState content)
         {
             Guard.NotNull(command);
 
-            if (schema.SchemaDef.IsSingleton)
-            {
-                throw new DomainException("Singleton content cannot be updated.");
-            }
-
             if (content.Status != Status.Published)
             {
                 throw new DomainException("You can only create a new version when the content is published.");

backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Guard/GuardContentTests.cs

@@ -229,17 +229,6 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             await GuardContent.CanChangeStatus(schema, content, contentWorkflow, command);
         }
 
-        [Fact]
-        public void CreateDraft_should_throw_exception_if_singleton()
-        {
-            var schema = CreateSchema(true);
-
-            var content = CreateContent(Status.Published);
-            var command = new CreateContentDraft();
-
-            Assert.Throws<DomainException>(() => GuardContent.CanCreateDraft(command, schema, content));
-        }
-
         [Fact]
         public void CreateDraft_should_throw_exception_if_not_published()
         {
@@ -248,7 +237,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new CreateContentDraft();
 
-            Assert.Throws<DomainException>(() => GuardContent.CanCreateDraft(command, schema, content));
+            Assert.Throws<DomainException>(() => GuardContent.CanCreateDraft(command, content));
         }
 
         [Fact]
@@ -259,7 +248,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Published);
             var command = new CreateContentDraft();
 
-            GuardContent.CanCreateDraft(command, schema, content);
+            GuardContent.CanCreateDraft(command, content);
         }
 
         [Fact]
@@ -270,18 +259,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = new ContentState();
             var command = new DeleteContentDraft();
 
-            Assert.Throws<DomainException>(() => GuardContent.CanDeleteDraft(command, schema, content));
-        }
-
-        [Fact]
-        public void CanDeleteDraft_should_throw_exception_if_singleton()
-        {
-            var schema = CreateSchema(true);
-
-            var content = CreateDraftContent(Status.Draft);
-            var command = new DeleteContentDraft();
-
-            Assert.Throws<DomainException>(() => GuardContent.CanDeleteDraft(command, schema, content));
+            Assert.Throws<DomainException>(() => GuardContent.CanDeleteDraft(command, content));
         }
 
         [Fact]
@@ -292,7 +270,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateDraftContent(Status.Draft);
             var command = new DeleteContentDraft();
 
-            GuardContent.CanDeleteDraft(command, schema, content);
+            GuardContent.CanDeleteDraft(command, content);
         }
 
         [Fact]