Feature/check before unpublish (#605)

* First attempt.

* Texts fixed.

backend/i18n/frontend_en.json

@@ -422,6 +422,8 @@
   "contents.tableHeaders.nextStatus": "Next Status",
   "contents.tableHeaders.status": "Status",
   "contents.tableHeaders.version": "Version",
+  "contents.unpublishReferrerConfirmText": "The content is referenced by another published content item.\n\nDo you really want to unpublish this content?",
+  "contents.unpublishReferrerConfirmTitle": "Unpublish content",
   "contents.unsavedChangesText": "You have unsaved changes. Do you want to load them now?",
   "contents.unsavedChangesTitle": "Unsaved changes",
   "contents.updated": "Content updated successfully.",

backend/i18n/frontend_it.json

@@ -422,6 +422,8 @@
   "contents.tableHeaders.nextStatus": "Stato successivo",
   "contents.tableHeaders.status": "Stato",
   "contents.tableHeaders.version": "Versione",
+  "contents.unpublishReferrerConfirmText": "The content is referenced by another published content item.\n\nDo you really want to unpublish this content?",
+  "contents.unpublishReferrerConfirmTitle": "Unpublish content",
   "contents.unsavedChangesText": "Non hai salvato le modifiche. Vuoi salvarle adesso?",
   "contents.unsavedChangesTitle": "Modifiche non salvate",
   "contents.updated": "Contenuto aggiornato con successo.",

backend/i18n/frontend_nl.json

@@ -422,6 +422,8 @@
   "contents.tableHeaders.nextStatus": "Volgende status",
   "contents.tableHeaders.status": "Status",
   "contents.tableHeaders.version": "Versie",
+  "contents.unpublishReferrerConfirmText": "The content is referenced by another published content item.\n\nDo you really want to unpublish this content?",
+  "contents.unpublishReferrerConfirmTitle": "Unpublish content",
   "contents.unsavedChangesText": "Je hebt niet-opgeslagen wijzigingen. Wil je ze nu laden?",
   "contents.unsavedChangesTitle": "Niet-opgeslagen wijzigingen",
   "contents.updated": "Inhoud succesvol bijgewerkt.",

backend/i18n/source/frontend_en.json

@@ -366,8 +366,10 @@
   "contents.deleteConfirmTitle": "Delete content",
   "contents.deleteFailed": "Failed to delete content. Please reload.",
   "contents.deleteManyConfirmText": "Do you really want to delete the selected content items?",
-  "contents.deleteReferrerConfirmText": "The content is referenced by another content item.\n\nDo you really want to delete the content?",
+  "contents.deleteReferrerConfirmText": "The content is referenced by another content item.\n\nDo you really want to delete this content?",
   "contents.deleteReferrerConfirmTitle": "Delete content",
+  "contents.unpublishReferrerConfirmText": "The content is referenced by another published content item.\n\nDo you really want to unpublish this content?",
+  "contents.unpublishReferrerConfirmTitle": "Unpublish content",
   "contents.deleteVersionConfirmText": "Do you really want to delete this version?",
   "contents.deleteVersionFailed": "Failed to delete version. Please reload.",
   "contents.draftNew": "New Draft",

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Contents/MongoContentCollectionPublished.cs

@@ -30,6 +30,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
         private readonly QueryContentsByIds queryContentsById;
         private readonly QueryContentsByQuery queryContentsByQuery;
         private readonly QueryIdsAsync queryIdsAsync;
+        private readonly QueryReferrersAsync queryReferrersAsync;
 
         public MongoContentCollectionPublished(IMongoDatabase database, IAppProvider appProvider, ITextIndex indexer, DataConverter converter)
             : base(database)
@@ -37,6 +38,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
             queryContentAsync = new QueryContent(converter);
             queryContentsById = new QueryContentsByIds(converter, appProvider);
             queryContentsByQuery = new QueryContentsByQuery(converter, indexer, appProvider);
+            queryReferrersAsync = new QueryReferrersAsync();
             queryIdsAsync = new QueryIdsAsync(appProvider);
         }
 
@@ -63,6 +65,7 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
             await queryContentAsync.PrepareAsync(collection, ct);
             await queryContentsById.PrepareAsync(collection, ct);
             await queryContentsByQuery.PrepareAsync(collection, ct);
+            await queryReferrersAsync.PrepareAsync(collection, ct);
             await queryIdsAsync.PrepareAsync(collection, ct);
         }
 
@@ -114,6 +117,14 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
             }
         }
 
+        public async Task<bool> HasReferrersAsync(DomainId appId, DomainId contentId)
+        {
+            using (Profiler.TraceMethod<MongoContentRepository>())
+            {
+                return await queryReferrersAsync.DoAsync(appId, contentId);
+            }
+        }
+
         public Task UpsertVersionedAsync(DomainId documentId, long oldVersion, MongoContentEntity entity)
         {
             return Collection.UpsertVersionedAsync(documentId, oldVersion, entity.Version, entity);

backend/src/Squidex.Domain.Apps.Entities.MongoDb/Contents/MongoContentRepository.cs

@@ -120,6 +120,18 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
             }
         }
 
+        public Task<bool> HasReferrersAsync(DomainId appId, DomainId contentId, SearchScope scope)
+        {
+            if (scope == SearchScope.All)
+            {
+                return collectionAll.HasReferrersAsync(appId, contentId);
+            }
+            else
+            {
+                return collectionPublished.HasReferrersAsync(appId, contentId);
+            }
+        }
+
         public Task ResetScheduledAsync(DomainId documentId)
         {
             return collectionAll.ResetScheduledAsync(documentId);
@@ -135,11 +147,6 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Contents
             return collectionAll.QueryIdsAsync(appId, schemaId, filterNode);
         }
 
-        public Task<bool> HasReferrersAsync(DomainId appId, DomainId contentId)
-        {
-            return collectionAll.HasReferrersAsync(appId, contentId);
-        }
-
         public IEnumerable<IMongoCollection<MongoContentEntity>> GetInternalCollections()
         {
             yield return collectionAll.GetInternalCollection();

backend/src/Squidex.Domain.Apps.Entities/Apps/AppDomainObject.cs

@@ -112,7 +112,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case AssignContributor assignContributor:
                     return UpdateReturnAsync(assignContributor, async c =>
                     {
-                        await GuardAppContributors.CanAssign(Snapshot.Contributors, Snapshot.Roles, c, userResolver, GetPlan());
+                        await GuardAppContributors.CanAssign(c, Snapshot, userResolver, GetPlan());
 
                         AssignContributor(c, !Snapshot.Contributors.ContainsKey(assignContributor.ContributorId));
 
@@ -122,7 +122,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case RemoveContributor removeContributor:
                     return UpdateReturn(removeContributor, c =>
                     {
-                        GuardAppContributors.CanRemove(Snapshot.Contributors, c);
+                        GuardAppContributors.CanRemove(c, Snapshot);
 
                         RemoveContributor(c);
 
@@ -132,7 +132,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case AttachClient attachClient:
                     return UpdateReturn(attachClient, c =>
                     {
-                        GuardAppClients.CanAttach(Snapshot.Clients, c);
+                        GuardAppClients.CanAttach(c, Snapshot);
 
                         AttachClient(c);
 
@@ -142,7 +142,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case UpdateClient updateClient:
                     return UpdateReturn(updateClient, c =>
                     {
-                        GuardAppClients.CanUpdate(Snapshot.Clients, c, Snapshot.Roles);
+                        GuardAppClients.CanUpdate(c, Snapshot);
 
                         UpdateClient(c);
 
@@ -152,7 +152,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case RevokeClient revokeClient:
                     return UpdateReturn(revokeClient, c =>
                     {
-                        GuardAppClients.CanRevoke(Snapshot.Clients, c);
+                        GuardAppClients.CanRevoke(c, Snapshot);
 
                         RevokeClient(c);
 
@@ -172,7 +172,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case UpdateWorkflow updateWorkflow:
                     return UpdateReturn(updateWorkflow, c =>
                     {
-                        GuardAppWorkflows.CanUpdate(Snapshot.Workflows, c);
+                        GuardAppWorkflows.CanUpdate(c, Snapshot);
 
                         UpdateWorkflow(c);
 
@@ -182,7 +182,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case DeleteWorkflow deleteWorkflow:
                     return UpdateReturn(deleteWorkflow, c =>
                     {
-                        GuardAppWorkflows.CanDelete(Snapshot.Workflows, c);
+                        GuardAppWorkflows.CanDelete(c, Snapshot);
 
                         DeleteWorkflow(c);
 
@@ -192,7 +192,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case AddLanguage addLanguage:
                     return UpdateReturn(addLanguage, c =>
                     {
-                        GuardAppLanguages.CanAdd(Snapshot.Languages, c);
+                        GuardAppLanguages.CanAdd(c, Snapshot);
 
                         AddLanguage(c);
 
@@ -202,7 +202,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case RemoveLanguage removeLanguage:
                     return UpdateReturn(removeLanguage, c =>
                     {
-                        GuardAppLanguages.CanRemove(Snapshot.Languages, c);
+                        GuardAppLanguages.CanRemove(c, Snapshot);
 
                         RemoveLanguage(c);
 
@@ -212,7 +212,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case UpdateLanguage updateLanguage:
                     return UpdateReturn(updateLanguage, c =>
                     {
-                        GuardAppLanguages.CanUpdate(Snapshot.Languages, c);
+                        GuardAppLanguages.CanUpdate(c, Snapshot);
 
                         UpdateLanguage(c);
 
@@ -222,7 +222,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case AddRole addRole:
                     return UpdateReturn(addRole, c =>
                     {
-                        GuardAppRoles.CanAdd(Snapshot.Roles, c);
+                        GuardAppRoles.CanAdd(c, Snapshot);
 
                         AddRole(c);
 
@@ -232,7 +232,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case DeleteRole deleteRole:
                     return UpdateReturn(deleteRole, c =>
                     {
-                        GuardAppRoles.CanDelete(Snapshot.Roles, c, Snapshot.Contributors, Snapshot.Clients);
+                        GuardAppRoles.CanDelete(c, Snapshot);
 
                         DeleteRole(c);
 
@@ -242,7 +242,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case UpdateRole updateRole:
                     return UpdateReturn(updateRole, c =>
                     {
-                        GuardAppRoles.CanUpdate(Snapshot.Roles, c);
+                        GuardAppRoles.CanUpdate(c, Snapshot);
 
                         UpdateRole(c);
 
@@ -252,7 +252,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case AddPattern addPattern:
                     return UpdateReturn(addPattern, c =>
                     {
-                        GuardAppPatterns.CanAdd(Snapshot.Patterns, c);
+                        GuardAppPatterns.CanAdd(c, Snapshot);
 
                         AddPattern(c);
 
@@ -262,7 +262,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case DeletePattern deletePattern:
                     return UpdateReturn(deletePattern, c =>
                     {
-                        GuardAppPatterns.CanDelete(Snapshot.Patterns, c);
+                        GuardAppPatterns.CanDelete(c, Snapshot);
 
                         DeletePattern(c);
 
@@ -272,7 +272,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case UpdatePattern updatePattern:
                     return UpdateReturn(updatePattern, c =>
                     {
-                        GuardAppPatterns.CanUpdate(Snapshot.Patterns, c);
+                        GuardAppPatterns.CanUpdate(c, Snapshot);
 
                         UpdatePattern(c);
 
@@ -282,7 +282,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 case ChangePlan changePlan:
                     return UpdateReturnAsync(changePlan, async c =>
                     {
-                        GuardApp.CanChangePlan(c, Snapshot.Plan, appPlansProvider);
+                        GuardApp.CanChangePlan(c, Snapshot, appPlansProvider);
 
                         if (c.FromCallback)
                         {

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardApp.cs

@@ -5,7 +5,6 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
-using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
 using Squidex.Domain.Apps.Entities.Apps.Plans;
 using Squidex.Infrastructure;
@@ -53,10 +52,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             Guard.NotNull(command, nameof(command));
         }
 
-        public static void CanChangePlan(ChangePlan command, AppPlan? plan, IAppPlansProvider appPlans)
+        public static void CanChangePlan(ChangePlan command, IAppEntity app, IAppPlansProvider appPlans)
         {
             Guard.NotNull(command, nameof(command));
 
+            var plan = app.Plan;
+
             Validate.It(e =>
             {
                 if (string.IsNullOrWhiteSpace(command.PlanId))

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppClients.cs

@@ -15,10 +15,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 {
     public static class GuardAppClients
     {
-        public static void CanAttach(AppClients clients, AttachClient command)
+        public static void CanAttach(AttachClient command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var clients = app.Clients;
+
             Validate.It(e =>
             {
                 if (string.IsNullOrWhiteSpace(command.Id))
@@ -32,10 +34,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanRevoke(AppClients clients, RevokeClient command)
+        public static void CanRevoke(RevokeClient command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var clients = app.Clients;
+
             GetClientOrThrow(clients, command.Id);
 
             Validate.It(e =>
@@ -47,10 +51,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanUpdate(AppClients clients, UpdateClient command, Roles roles)
+        public static void CanUpdate(UpdateClient command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var clients = app.Clients;
+
             GetClientOrThrow(clients, command.Id);
 
             Validate.It(e =>
@@ -60,7 +66,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                     e(Not.Defined("Clientd"), nameof(command.Id));
                 }
 
-                if (command.Role != null && !roles.Contains(command.Role))
+                if (command.Role != null && !app.Roles.Contains(command.Role))
                 {
                     e(Not.Valid(nameof(command.Role)), nameof(command.Role));
                 }

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppContributors.cs

@@ -20,13 +20,15 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 {
     public static class GuardAppContributors
     {
-        public static Task CanAssign(AppContributors contributors, Roles roles, AssignContributor command, IUserResolver users, IAppLimitsPlan plan)
+        public static Task CanAssign(AssignContributor command, IAppEntity app, IUserResolver users, IAppLimitsPlan plan)
         {
             Guard.NotNull(command, nameof(command));
 
+            var contributors = app.Contributors;
+
             return Validate.It(async e =>
             {
-                if (!roles.Contains(command.Role))
+                if (!app.Roles.Contains(command.Role))
                 {
                     e(Not.Valid(nameof(command.Role)), nameof(command.Role));
                 }
@@ -63,10 +65,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanRemove(AppContributors contributors, RemoveContributor command)
+        public static void CanRemove(RemoveContributor command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var contributors = app.Contributors;
+
             Validate.It(e =>
             {
                 if (string.IsNullOrWhiteSpace(command.ContributorId))

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppLanguages.cs

@@ -15,10 +15,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 {
     public static class GuardAppLanguages
     {
-        public static void CanAdd(LanguagesConfig languages, AddLanguage command)
+        public static void CanAdd(AddLanguage command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var languages = app.Languages;
+
             Validate.It(e =>
             {
                 var language = command.Language;
@@ -34,10 +36,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanRemove(LanguagesConfig languages, RemoveLanguage command)
+        public static void CanRemove(RemoveLanguage command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var languages = app.Languages;
+
             Validate.It(e =>
             {
                 var language = command.Language;
@@ -58,10 +62,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanUpdate(LanguagesConfig languages, UpdateLanguage command)
+        public static void CanUpdate(UpdateLanguage command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var languages = app.Languages;
+
             Validate.It(e =>
             {
                 var language = command.Language;

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppPatterns.cs

@@ -4,9 +4,9 @@
 //  Copyright (c) Squidex UG (haftungsbeschränkt)
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
+
 using System;
 using System.Linq;
-using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.Translations;
@@ -16,10 +16,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 {
     public static class GuardAppPatterns
     {
-        public static void CanAdd(AppPatterns patterns, AddPattern command)
+        public static void CanAdd(AddPattern command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var patterns = app.Patterns;
+
             Validate.It(e =>
             {
                 if (command.PatternId == DomainId.Empty)
@@ -53,20 +55,24 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanDelete(AppPatterns patterns, DeletePattern command)
+        public static void CanDelete(DeletePattern command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var patterns = app.Patterns;
+
             if (!patterns.ContainsKey(command.PatternId))
             {
                 throw new DomainObjectNotFoundException(command.PatternId.ToString());
             }
         }
 
-        public static void CanUpdate(AppPatterns patterns, UpdatePattern command)
+        public static void CanUpdate(UpdatePattern command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var patterns = app.Patterns;
+
             if (!patterns.ContainsKey(command.PatternId))
             {
                 throw new DomainObjectNotFoundException(command.PatternId.ToString());

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppRoles.cs

@@ -17,10 +17,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 {
     public static class GuardAppRoles
     {
-        public static void CanAdd(Roles roles, AddRole command)
+        public static void CanAdd(AddRole command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var roles = app.Roles;
+
             Validate.It(e =>
             {
                 if (string.IsNullOrWhiteSpace(command.Name))
@@ -34,10 +36,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanDelete(Roles roles, DeleteRole command, AppContributors contributors, AppClients clients)
+        public static void CanDelete(DeleteRole command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var roles = app.Roles;
+
             CheckRoleExists(roles, command.Name);
 
             Validate.It(e =>
@@ -51,22 +55,24 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                     e(T.Get("apps.roles.defaultRoleNotRemovable"));
                 }
 
-                if (clients.Values.Any(x => string.Equals(x.Role, command.Name, StringComparison.OrdinalIgnoreCase)))
+                if (app.Clients.Values.Any(x => string.Equals(x.Role, command.Name, StringComparison.OrdinalIgnoreCase)))
                 {
                     e(T.Get("apps.roles.usedRoleByClientsNotRemovable"));
                 }
 
-                if (contributors.Values.Any(x => string.Equals(x, command.Name, StringComparison.OrdinalIgnoreCase)))
+                if (app.Contributors.Values.Any(x => string.Equals(x, command.Name, StringComparison.OrdinalIgnoreCase)))
                 {
                     e(T.Get("apps.roles.usedRoleByContributorsNotRemovable"));
                 }
             });
         }
 
-        public static void CanUpdate(Roles roles, UpdateRole command)
+        public static void CanUpdate(UpdateRole command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var roles = app.Roles;
+
             CheckRoleExists(roles, command.Name);
 
             Validate.It(e =>

backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppWorkflows.cs

@@ -28,10 +28,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanUpdate(Workflows workflows, UpdateWorkflow command)
+        public static void CanUpdate(UpdateWorkflow command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var workflows = app.Workflows;
+
             CheckWorkflowExists(workflows, command.WorkflowId);
 
             Validate.It(e =>
@@ -90,10 +92,12 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             });
         }
 
-        public static void CanDelete(Workflows workflows, DeleteWorkflow command)
+        public static void CanDelete(DeleteWorkflow command, IAppEntity app)
         {
             Guard.NotNull(command, nameof(command));
 
+            var workflows = app.Workflows;
+
             CheckWorkflowExists(workflows, command.WorkflowId);
         }
 

backend/src/Squidex.Domain.Apps.Entities/Assets/AssetDomainObject.cs

@@ -20,7 +20,6 @@ using Squidex.Infrastructure.Commands;
 using Squidex.Infrastructure.EventSourcing;
 using Squidex.Infrastructure.Reflection;
 using Squidex.Infrastructure.States;
-using Squidex.Infrastructure.Translations;
 using Squidex.Log;
 using IAssetTagService = Squidex.Domain.Apps.Core.Tags.ITagService;
 
@@ -102,7 +101,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
                 case MoveAsset moveAsset:
                     return UpdateReturnAsync(moveAsset, async c =>
                     {
-                        await GuardAsset.CanMove(c, assetQuery, Snapshot.ParentId);
+                        await GuardAsset.CanMove(c, Snapshot, assetQuery);
 
                         Move(c);
 
@@ -111,17 +110,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
                 case DeleteAsset deleteAsset:
                     return UpdateAsync(deleteAsset, async c =>
                     {
-                        GuardAsset.CanDelete(c);
-
-                        if (c.CheckReferrers)
-                        {
-                            var hasReferrer = await contentRepository.HasReferrersAsync(Snapshot.AppId.Id, c.AssetId);
-
-                            if (hasReferrer)
-                            {
-                                throw new DomainException(T.Get("assets.referenced"));
-                            }
-                        }
+                        await GuardAsset.CanDelete(c, Snapshot, contentRepository);
 
                         await assetTags.NormalizeTagsAsync(Snapshot.AppId.Id, TagGroups.Assets, null, Snapshot.Tags);
 

backend/src/Squidex.Domain.Apps.Entities/Assets/AssetFolderDomainObject.cs

@@ -67,7 +67,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
                 case MoveAssetFolder moveAssetFolder:
                     return UpdateReturnAsync(moveAssetFolder, async c =>
                     {
-                        await GuardAssetFolder.CanMove(c, assetQuery, Snapshot.Id, Snapshot.ParentId);
+                        await GuardAssetFolder.CanMove(c, Snapshot, assetQuery);
 
                         Move(c);
 

backend/src/Squidex.Domain.Apps.Entities/Assets/Guards/GuardAsset.cs

@@ -7,6 +7,8 @@
 
 using System.Threading.Tasks;
 using Squidex.Domain.Apps.Entities.Assets.Commands;
+using Squidex.Domain.Apps.Entities.Contents;
+using Squidex.Domain.Apps.Entities.Contents.Repositories;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.Translations;
 using Squidex.Infrastructure.Validation;
@@ -30,13 +32,13 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             });
         }
 
-        public static Task CanMove(MoveAsset command, IAssetQueryService assetQuery, DomainId oldParentId)
+        public static Task CanMove(MoveAsset command, IAssetEntity asset, IAssetQueryService assetQuery)
         {
             Guard.NotNull(command, nameof(command));
 
             return Validate.It(async e =>
             {
-                if (command.ParentId != oldParentId)
+                if (command.ParentId != asset.ParentId)
                 {
                     await CheckPathAsync(command.AppId.Id, command.ParentId, assetQuery, e);
                 }
@@ -48,9 +50,19 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             Guard.NotNull(command, nameof(command));
         }
 
-        public static void CanDelete(DeleteAsset command)
+        public static async Task CanDelete(DeleteAsset command, IAssetEntity asset, IContentRepository contentRepository)
         {
             Guard.NotNull(command, nameof(command));
+
+            if (command.CheckReferrers)
+            {
+                var hasReferrer = await contentRepository.HasReferrersAsync(asset.AppId.Id, asset.Id, SearchScope.All);
+
+                if (hasReferrer)
+                {
+                    throw new DomainException(T.Get("assets.referenced"));
+                }
+            }
         }
 
         private static async Task CheckPathAsync(DomainId appId, DomainId parentId, IAssetQueryService assetQuery, AddValidation e)

backend/src/Squidex.Domain.Apps.Entities/Assets/Guards/GuardAssetFolder.cs

@@ -43,15 +43,15 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             });
         }
 
-        public static Task CanMove(MoveAssetFolder command, IAssetQueryService assetQuery, DomainId id, DomainId oldParentId)
+        public static Task CanMove(MoveAssetFolder command, IAssetFolderEntity assetFolder, IAssetQueryService assetQuery)
         {
             Guard.NotNull(command, nameof(command));
 
             return Validate.It(async e =>
             {
-                if (command.ParentId != oldParentId)
+                if (command.ParentId != assetFolder.ParentId)
                 {
-                    await CheckPathAsync(command.AppId.Id, command.ParentId, assetQuery, id, e);
+                    await CheckPathAsync(command.AppId.Id, command.ParentId, assetQuery, assetFolder.Id, e);
                 }
             });
         }

backend/src/Squidex.Domain.Apps.Entities/Comments/CommentsGrain.cs

@@ -83,7 +83,7 @@ namespace Squidex.Domain.Apps.Entities.Comments
                 case UpdateComment updateComment:
                     return Upsert(updateComment, c =>
                     {
-                        GuardComments.CanUpdate(Key, events, c);
+                        GuardComments.CanUpdate(c, Key, events);
 
                         Update(c);
 
@@ -93,7 +93,7 @@ namespace Squidex.Domain.Apps.Entities.Comments
                 case DeleteComment deleteComment:
                     return Upsert(deleteComment, c =>
                     {
-                        GuardComments.CanDelete(Key, events, c);
+                        GuardComments.CanDelete(c, Key, events);
 
                         Delete(c);
 

backend/src/Squidex.Domain.Apps.Entities/Comments/Guards/GuardComments.cs

@@ -30,7 +30,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
             });
         }
 
-        public static void CanUpdate(string commentsId, List<Envelope<CommentsEvent>> events, UpdateComment command)
+        public static void CanUpdate(UpdateComment command, string commentsId, List<Envelope<CommentsEvent>> events)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -50,7 +50,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
             });
         }
 
-        public static void CanDelete(string commentsId, List<Envelope<CommentsEvent>> events, DeleteComment command)
+        public static void CanDelete(DeleteComment command, string commentsId, List<Envelope<CommentsEvent>> events)
         {
             Guard.NotNull(command, nameof(command));
 

backend/src/Squidex.Domain.Apps.Entities/Contents/Commands/ChangeContentStatus.cs

@@ -19,6 +19,8 @@ namespace Squidex.Domain.Apps.Entities.Contents.Commands
 
         public DomainId? StatusJobId { get; set; }
 
+        public bool CheckReferrers { get; set; }
+
         public bool DoNotValidate { get; set; }
     }
 }

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

@@ -81,7 +81,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                     {
                         await LoadContext(c.AppId, c.SchemaId, c, c.OptimizeValidation);
 
-                        await GuardContent.CanCreate(context.Schema, context.Workflow, c);
+                        await GuardContent.CanCreate(c, context.Workflow, context.Schema);
 
                         var status = await context.GetInitialStatusAsync();
 
@@ -155,7 +155,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                 case UpdateContent updateContent:
                     return UpdateReturnAsync(updateContent, async c =>
                     {
-                        await GuardContent.CanUpdate(Snapshot, context.Workflow, c);
+                        await GuardContent.CanUpdate(c, Snapshot, context.Workflow);
 
                         return await UpdateAsync(c, x => c.Data, false);
                     });
@@ -163,7 +163,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                 case PatchContent patchContent:
                     return UpdateReturnAsync(patchContent, async c =>
                     {
-                        await GuardContent.CanPatch(Snapshot, context.Workflow, c);
+                        await GuardContent.CanPatch(c, Snapshot, context.Workflow);
 
                         return await UpdateAsync(c, c.Data.MergeInto, true);
                     });
@@ -175,7 +175,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                         {
                             await LoadContext(Snapshot.AppId, Snapshot.SchemaId, c);
 
-                            await GuardContent.CanChangeStatus(context.Schema, Snapshot, context.Workflow, c);
+                            await GuardContent.CanChangeStatus(c, Snapshot, context.Workflow, context.Repository, context.Schema);
 
                             if (c.DueTime.HasValue)
                             {
@@ -234,7 +234,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                     {
                         await LoadContext(Snapshot.AppId, Snapshot.SchemaId, c);
 
-                        await GuardContent.CanDelete(context.Schema, Snapshot, context.Repository, c);
+                        await GuardContent.CanDelete(c, Snapshot, context.Repository, context.Schema);
 
                         if (!c.DoNotScript)
                         {

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

@@ -11,7 +11,6 @@ using NodaTime;
 using Squidex.Domain.Apps.Core.Contents;
 using Squidex.Domain.Apps.Entities.Contents.Commands;
 using Squidex.Domain.Apps.Entities.Contents.Repositories;
-using Squidex.Domain.Apps.Entities.Contents.State;
 using Squidex.Domain.Apps.Entities.Schemas;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.Translations;
@@ -21,7 +20,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
 {
     public static class GuardContent
     {
-        public static async Task CanCreate(ISchemaEntity schema, IContentWorkflow contentWorkflow, CreateContent command)
+        public static async Task CanCreate(CreateContent command, IContentWorkflow contentWorkflow, ISchemaEntity schema)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -41,7 +40,9 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             });
         }
 
-        public static async Task CanUpdate(ContentState content, IContentWorkflow contentWorkflow, UpdateContent command)
+        public static async Task CanUpdate(UpdateContent command,
+            IContentEntity content,
+            IContentWorkflow contentWorkflow)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -53,7 +54,9 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             await ValidateCanUpdate(content, contentWorkflow, command.User);
         }
 
-        public static async Task CanPatch(ContentState content, IContentWorkflow contentWorkflow, PatchContent command)
+        public static async Task CanPatch(PatchContent command,
+            IContentEntity content,
+            IContentWorkflow contentWorkflow)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -65,7 +68,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             await ValidateCanUpdate(content, contentWorkflow, command.User);
         }
 
-        public static void CanDeleteDraft(DeleteContentDraft command, ContentState content)
+        public static void CanDeleteDraft(DeleteContentDraft command, IContentEntity content)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -75,7 +78,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             }
         }
 
-        public static void CanCreateDraft(CreateContentDraft command, ContentState content)
+        public static void CanCreateDraft(CreateContentDraft command, IContentEntity content)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -85,13 +88,17 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             }
         }
 
-        public static Task CanChangeStatus(ISchemaEntity schema, ContentState content, IContentWorkflow contentWorkflow, ChangeContentStatus command)
+        public static Task CanChangeStatus(ChangeContentStatus command,
+            IContentEntity content,
+            IContentWorkflow contentWorkflow,
+            IContentRepository contentRepository,
+            ISchemaEntity schema)
         {
             Guard.NotNull(command, nameof(command));
 
             if (schema.SchemaDef.IsSingleton)
             {
-                if (content.NewVersion == null || command.Status != Status.Published)
+                if (content.NewStatus == null || command.Status != Status.Published)
                 {
                     throw new DomainException(T.Get("contents.singletonNotChangeable"));
                 }
@@ -101,9 +108,23 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
 
             return Validate.It(async e =>
             {
-                if (!await contentWorkflow.CanMoveToAsync(content, content.EditingStatus, command.Status, command.User))
+                var status = content.NewStatus ?? content.Status;
+
+                if (!await contentWorkflow.CanMoveToAsync(content, status, command.Status, command.User))
                 {
-                    e(T.Get("contents.statusTransitionNotAllowed", new { oldStatus = content.EditingStatus, newStatus = command.Status }), nameof(command.Status));
+                    var values = new { oldStatus = status, newStatus = command.Status };
+
+                    e(T.Get("contents.statusTransitionNotAllowed", values), nameof(command.Status));
+                }
+
+                if (content.Status == Status.Published && command.CheckReferrers)
+                {
+                    var hasReferrer = await contentRepository.HasReferrersAsync(content.AppId.Id, command.ContentId, SearchScope.Published);
+
+                    if (hasReferrer)
+                    {
+                        throw new DomainException(T.Get("contents.referenced"));
+                    }
                 }
 
                 if (command.DueTime.HasValue && command.DueTime.Value < SystemClock.Instance.GetCurrentInstant())
@@ -113,7 +134,10 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             });
         }
 
-        public static async Task CanDelete(ISchemaEntity schema, ContentState content, IContentRepository contentRepository, DeleteContent command)
+        public static async Task CanDelete(DeleteContent command,
+            IContentEntity content,
+            IContentRepository contentRepository,
+            ISchemaEntity schema)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -124,7 +148,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
 
             if (command.CheckReferrers)
             {
-                var hasReferrer = await contentRepository.HasReferrersAsync(content.AppId.Id, command.ContentId);
+                var hasReferrer = await contentRepository.HasReferrersAsync(content.AppId.Id, command.ContentId, SearchScope.All);
 
                 if (hasReferrer)
                 {
@@ -141,11 +165,13 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guards
             }
         }
 
-        private static async Task ValidateCanUpdate(ContentState content, IContentWorkflow contentWorkflow, ClaimsPrincipal user)
+        private static async Task ValidateCanUpdate(IContentEntity content, IContentWorkflow contentWorkflow, ClaimsPrincipal user)
         {
-            if (!await contentWorkflow.CanUpdateAsync(content, content.EditingStatus, user))
+            var status = content.NewStatus ?? content.Status;
+
+            if (!await contentWorkflow.CanUpdateAsync(content, status, user))
             {
-                throw new DomainException(T.Get("contents.workflowErrorUpdate", new { status = content.EditingStatus }));
+                throw new DomainException(T.Get("contents.workflowErrorUpdate", new { status }));
             }
         }
     }

backend/src/Squidex.Domain.Apps.Entities/Contents/Repositories/IContentRepository.cs

@@ -33,7 +33,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Repositories
 
         Task<IContentEntity?> FindContentAsync(IAppEntity app, ISchemaEntity schema, DomainId id, SearchScope scope);
 
-        Task<bool> HasReferrersAsync(DomainId appId, DomainId contentId);
+        Task<bool> HasReferrersAsync(DomainId appId, DomainId contentId, SearchScope scope);
 
         Task ResetScheduledAsync(DomainId documentId);
 

backend/src/Squidex.Domain.Apps.Entities/Rules/Guards/GuardRule.cs

@@ -44,7 +44,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
             });
         }
 
-        public static Task CanUpdate(UpdateRule command, DomainId appId, IAppProvider appProvider)
+        public static Task CanUpdate(UpdateRule command, IRuleEntity rule, IAppProvider appProvider)
         {
             Guard.NotNull(command, nameof(command));
 
@@ -52,7 +52,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
             {
                 if (command.Trigger != null)
                 {
-                    var errors = await RuleTriggerValidator.ValidateAsync(appId, command.Trigger, appProvider);
+                    var errors = await RuleTriggerValidator.ValidateAsync(rule.AppId.Id, command.Trigger, appProvider);
 
                     errors.Foreach((x, _) => x.AddTo(e));
                 }

backend/src/Squidex.Domain.Apps.Entities/Rules/RuleDomainObject.cs

@@ -70,7 +70,7 @@ namespace Squidex.Domain.Apps.Entities.Rules
                 case UpdateRule updateRule:
                     return UpdateReturnAsync(updateRule, async c =>
                     {
-                        await GuardRule.CanUpdate(c, Snapshot.AppId.Id, appProvider);
+                        await GuardRule.CanUpdate(c, Snapshot, appProvider);
 
                         Update(c);
 

backend/src/Squidex/Areas/Api/Controllers/Contents/Models/ChangeStatusDto.cs

@@ -9,6 +9,7 @@ using NodaTime;
 using Squidex.Domain.Apps.Core.Contents;
 using Squidex.Domain.Apps.Entities.Contents.Commands;
 using Squidex.Infrastructure;
+using Squidex.Infrastructure.Reflection;
 using Squidex.Infrastructure.Validation;
 
 namespace Squidex.Areas.Api.Controllers.Contents.Models
@@ -26,9 +27,14 @@ namespace Squidex.Areas.Api.Controllers.Contents.Models
         /// </summary>
         public Instant? DueTime { get; set; }
 
+        /// <summary>
+        /// True to check referrers of this content.
+        /// </summary>
+        public bool CheckReferrers { get; set; }
+
         public ChangeContentStatus ToCommand(DomainId id)
         {
-            return new ChangeContentStatus { ContentId = id, Status = Status, DueTime = DueTime };
+            return SimpleMapper.Map(this, new ChangeContentStatus { ContentId = id });
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppClientsTests.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using FakeItEasy;
 using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
@@ -27,7 +28,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AttachClient();
 
-            ValidationAssert.Throws(() => GuardAppClients.CanAttach(clients_0, command),
+            ValidationAssert.Throws(() => GuardAppClients.CanAttach(command, App(clients_0)),
                 new ValidationError("Client ID is required.", "Id"));
         }
 
@@ -38,7 +39,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("android", "secret");
 
-            ValidationAssert.Throws(() => GuardAppClients.CanAttach(clients_1, command),
+            ValidationAssert.Throws(() => GuardAppClients.CanAttach(command, App(clients_1)),
                 new ValidationError("A client with the same id already exists."));
         }
 
@@ -49,7 +50,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("android", "secret");
 
-            GuardAppClients.CanAttach(clients_1, command);
+            GuardAppClients.CanAttach(command, App(clients_1));
         }
 
         [Fact]
@@ -57,7 +58,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RevokeClient();
 
-            ValidationAssert.Throws(() => GuardAppClients.CanRevoke(clients_0, command),
+            ValidationAssert.Throws(() => GuardAppClients.CanRevoke(command, App(clients_0)),
                 new ValidationError("Client ID is required.", "Id"));
         }
 
@@ -66,7 +67,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RevokeClient { Id = "ios" };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppClients.CanRevoke(clients_0, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppClients.CanRevoke(command, App(clients_0)));
         }
 
         [Fact]
@@ -76,7 +77,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            GuardAppClients.CanRevoke(clients_1, command);
+            GuardAppClients.CanRevoke(command, App(clients_1));
         }
 
         [Fact]
@@ -84,7 +85,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateClient { Name = "iOS" };
 
-            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(clients_0, command, Roles.Empty),
+            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(command, App(clients_0)),
                 new ValidationError("Client ID is required.", "Id"));
         }
 
@@ -93,7 +94,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateClient { Id = "ios", Name = "iOS" };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppClients.CanUpdate(clients_0, command, Roles.Empty));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppClients.CanUpdate(command, App(clients_0)));
         }
 
         [Fact]
@@ -103,7 +104,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(clients_1, command, roles),
+            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(command, App(clients_1)),
                 new ValidationError("Role is not a valid value.", "Role"));
         }
 
@@ -114,7 +115,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(clients_1, command, roles),
+            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(command, App(clients_1)),
                 new ValidationError("ApiCallsLimit must be greater or equal to 0.", "ApiCallsLimit"));
         }
 
@@ -125,7 +126,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(clients_1, command, roles),
+            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(command, App(clients_1)),
                 new ValidationError("ApiTrafficLimit must be greater or equal to 0.", "ApiTrafficLimit"));
         }
 
@@ -136,7 +137,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            GuardAppClients.CanUpdate(clients_1, command, roles);
+            GuardAppClients.CanUpdate(command, App(clients_1));
         }
 
         [Fact]
@@ -146,7 +147,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            GuardAppClients.CanUpdate(clients_1, command, roles);
+            GuardAppClients.CanUpdate(command, App(clients_1));
         }
 
         [Fact]
@@ -156,7 +157,19 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var clients_1 = clients_0.Add("ios", "secret");
 
-            GuardAppClients.CanUpdate(clients_1, command, roles);
+            GuardAppClients.CanUpdate(command, App(clients_1));
+        }
+
+        private IAppEntity App(AppClients clients)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Clients)
+                .Returns(clients);
+            A.CallTo(() => app.Roles)
+                .Returns(roles);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppContributorsTests.cs

@@ -53,7 +53,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AssignContributor();
 
-            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(contributors_0, roles, command, users, appPlan),
+            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(command, App(contributors_0), users, appPlan),
                 new ValidationError("Contributor ID or email is required.", "ContributorId"));
         }
 
@@ -62,7 +62,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AssignContributor { ContributorId = "1", Role = "Invalid" };
 
-            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(contributors_0, roles, command, users, appPlan),
+            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(command, App(contributors_0), users, appPlan),
                 new ValidationError("Role is not a valid value.", "Role"));
         }
 
@@ -73,7 +73,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var contributors_1 = contributors_0.Assign("1", Role.Owner);
 
-            await GuardAppContributors.CanAssign(contributors_1, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_1), users, appPlan);
         }
 
         [Fact]
@@ -83,7 +83,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var contributors_1 = contributors_0.Assign("1", Role.Owner);
 
-            await GuardAppContributors.CanAssign(contributors_1, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_1), users, appPlan);
         }
 
         [Fact]
@@ -91,7 +91,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AssignContributor { ContributorId = "notfound", Role = Role.Owner };
 
-            await Assert.ThrowsAsync<DomainObjectNotFoundException>(() => GuardAppContributors.CanAssign(contributors_0, roles, command, users, appPlan));
+            await Assert.ThrowsAsync<DomainObjectNotFoundException>(() => GuardAppContributors.CanAssign(command, App(contributors_0), users, appPlan));
         }
 
         [Fact]
@@ -99,7 +99,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AssignContributor { ContributorId = "3", Role = Role.Editor, Actor = new RefToken("user", "3") };
 
-            await Assert.ThrowsAsync<DomainForbiddenException>(() => GuardAppContributors.CanAssign(contributors_0, roles, command, users, appPlan));
+            await Assert.ThrowsAsync<DomainForbiddenException>(() => GuardAppContributors.CanAssign(command, App(contributors_0), users, appPlan));
         }
 
         [Fact]
@@ -113,7 +113,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             var contributors_1 = contributors_0.Assign("1", Role.Owner);
             var contributors_2 = contributors_1.Assign("2", Role.Editor);
 
-            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(contributors_2, roles, command, users, appPlan),
+            await ValidationAssert.ThrowsAsync(() => GuardAppContributors.CanAssign(command, App(contributors_2), users, appPlan),
                 new ValidationError("You have reached the maximum number of contributors for your plan."));
         }
 
@@ -125,7 +125,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new AssignContributor { ContributorId = "1" };
 
-            await GuardAppContributors.CanAssign(contributors_0, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_0), users, appPlan);
         }
 
         [Fact]
@@ -135,7 +135,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var contributors_1 = contributors_0.Assign("1", Role.Developer);
 
-            await GuardAppContributors.CanAssign(contributors_1, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_1), users, appPlan);
         }
 
         [Fact]
@@ -149,7 +149,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             var contributors_1 = contributors_0.Assign("1", Role.Developer);
             var contributors_2 = contributors_1.Assign("2", Role.Developer);
 
-            await GuardAppContributors.CanAssign(contributors_2, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_2), users, appPlan);
         }
 
         [Fact]
@@ -163,7 +163,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             var contributors_1 = contributors_0.Assign("1", Role.Editor);
             var contributors_2 = contributors_1.Assign("2", Role.Editor);
 
-            await GuardAppContributors.CanAssign(contributors_2, roles, command, users, appPlan);
+            await GuardAppContributors.CanAssign(command, App(contributors_2), users, appPlan);
         }
 
         [Fact]
@@ -171,7 +171,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveContributor();
 
-            ValidationAssert.Throws(() => GuardAppContributors.CanRemove(contributors_0, command),
+            ValidationAssert.Throws(() => GuardAppContributors.CanRemove(command, App(contributors_0)),
                 new ValidationError("Contributor ID or email is required.", "ContributorId"));
         }
 
@@ -180,7 +180,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveContributor { ContributorId = "1" };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppContributors.CanRemove(contributors_0, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppContributors.CanRemove(command, App(contributors_0)));
         }
 
         [Fact]
@@ -191,7 +191,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             var contributors_1 = contributors_0.Assign("1", Role.Owner);
             var contributors_2 = contributors_1.Assign("2", Role.Editor);
 
-            ValidationAssert.Throws(() => GuardAppContributors.CanRemove(contributors_2, command),
+            ValidationAssert.Throws(() => GuardAppContributors.CanRemove(command, App(contributors_2)),
                 new ValidationError("Cannot remove the only owner."));
         }
 
@@ -203,7 +203,19 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             var contributors_1 = contributors_0.Assign("1", Role.Owner);
             var contributors_2 = contributors_1.Assign("2", Role.Owner);
 
-            GuardAppContributors.CanRemove(contributors_2, command);
+            GuardAppContributors.CanRemove(command, App(contributors_2));
+        }
+
+        private IAppEntity App(AppContributors contributors)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Contributors)
+                .Returns(contributors);
+            A.CallTo(() => app.Roles)
+                .Returns(roles);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppLanguagesTests.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using FakeItEasy;
 using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
@@ -24,7 +25,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddLanguage();
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanAdd(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanAdd(command, App(languages)),
                 new ValidationError("Language code is required.", "Language"));
         }
 
@@ -33,7 +34,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddLanguage { Language = Language.EN };
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanAdd(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanAdd(command, App(languages)),
                 new ValidationError("Language has already been added."));
         }
 
@@ -42,7 +43,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddLanguage { Language = Language.IT };
 
-            GuardAppLanguages.CanAdd(languages, command);
+            GuardAppLanguages.CanAdd(command, App(languages));
         }
 
         [Fact]
@@ -50,7 +51,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveLanguage();
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanRemove(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanRemove(command, App(languages)),
                 new ValidationError("Language code is required.", "Language"));
         }
 
@@ -59,7 +60,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveLanguage { Language = Language.IT };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppLanguages.CanRemove(languages, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppLanguages.CanRemove(command, App(languages)));
         }
 
         [Fact]
@@ -67,7 +68,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveLanguage { Language = Language.EN };
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanRemove(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanRemove(command, App(languages)),
                 new ValidationError("Master language cannot be removed."));
         }
 
@@ -76,7 +77,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new RemoveLanguage { Language = Language.DE };
 
-            GuardAppLanguages.CanRemove(languages, command);
+            GuardAppLanguages.CanRemove(command, App(languages));
         }
 
         [Fact]
@@ -84,7 +85,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage();
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(command, App(languages)),
                 new ValidationError("Language code is required.", "Language"));
         }
 
@@ -93,7 +94,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage { Language = Language.EN, IsOptional = true };
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(command, App(languages)),
                 new ValidationError("Master language cannot be made optional.", "IsMaster"));
         }
 
@@ -102,7 +103,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage { Language = Language.EN, Fallback = new[] { Language.DE } };
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(command, App(languages)),
                 new ValidationError("Master language cannot have fallback languages.", "Fallback"));
         }
 
@@ -111,7 +112,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage { Language = Language.DE, Fallback = new[] { Language.IT } };
 
-            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(languages, command),
+            ValidationAssert.Throws(() => GuardAppLanguages.CanUpdate(command, App(languages)),
                 new ValidationError("App does not have fallback language 'Italian'.", "Fallback"));
         }
 
@@ -120,7 +121,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage { Language = Language.IT };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppLanguages.CanUpdate(languages, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppLanguages.CanUpdate(command, App(languages)));
         }
 
         [Fact]
@@ -128,7 +129,17 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateLanguage { Language = Language.DE, Fallback = new[] { Language.EN } };
 
-            GuardAppLanguages.CanUpdate(languages, command);
+            GuardAppLanguages.CanUpdate(command, App(languages));
+        }
+
+        private static IAppEntity App(LanguagesConfig languages)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Languages)
+                .Returns(languages);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppPatternsTests.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using FakeItEasy;
 using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
@@ -27,7 +28,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddPattern { PatternId = patternId, Name = string.Empty, Pattern = ".*" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(patterns_0, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(command, App(patterns_0)),
                 new ValidationError("Name is required.", "Name"));
         }
 
@@ -36,7 +37,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = string.Empty };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(patterns_0, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(command, App(patterns_0)),
                 new ValidationError("Pattern is required.", "Pattern"));
         }
 
@@ -45,7 +46,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = "[0-9{1}" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(patterns_0, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(command, App(patterns_0)),
                 new ValidationError("Pattern is not a valid value.", "Pattern"));
         }
 
@@ -56,7 +57,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = ".*" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(patterns_1, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(command, App(patterns_1)),
                 new ValidationError("A pattern with the same name already exists."));
         }
 
@@ -67,7 +68,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new AddPattern { PatternId = patternId, Name = "other", Pattern = "[a-z]" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(patterns_1, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanAdd(command, App(patterns_1)),
                 new ValidationError("This pattern already exists but with another name."));
         }
 
@@ -76,7 +77,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = ".*" };
 
-            GuardAppPatterns.CanAdd(patterns_0, command);
+            GuardAppPatterns.CanAdd(command, App(patterns_0));
         }
 
         [Fact]
@@ -84,7 +85,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new DeletePattern { PatternId = patternId };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPatterns.CanDelete(patterns_0, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPatterns.CanDelete(command, App(patterns_0)));
         }
 
         [Fact]
@@ -94,7 +95,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new DeletePattern { PatternId = patternId };
 
-            GuardAppPatterns.CanDelete(patterns_1, command);
+            GuardAppPatterns.CanDelete(command, App(patterns_1));
         }
 
         [Fact]
@@ -104,7 +105,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = patternId, Name = string.Empty, Pattern = ".*" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(patterns_1, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(command, App(patterns_1)),
                 new ValidationError("Name is required.", "Name"));
         }
 
@@ -115,7 +116,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = patternId, Name = "any", Pattern = string.Empty };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(patterns_1, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(command, App(patterns_1)),
                 new ValidationError("Pattern is required.", "Pattern"));
         }
 
@@ -126,7 +127,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = patternId, Name = "any", Pattern = "[0-9{1}" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(patterns_1, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(command, App(patterns_1)),
                 new ValidationError("Pattern is not a valid value.", "Pattern"));
         }
 
@@ -141,7 +142,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = id2, Name = "Pattern1", Pattern = "[0-4]" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(patterns_2, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(command, App(patterns_2)),
                 new ValidationError("A pattern with the same name already exists."));
         }
 
@@ -156,7 +157,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = id2, Name = "Pattern2", Pattern = "[0-5]" };
 
-            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(patterns_2, command),
+            ValidationAssert.Throws(() => GuardAppPatterns.CanUpdate(command, App(patterns_2)),
                 new ValidationError("This pattern already exists but with another name."));
         }
 
@@ -165,7 +166,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdatePattern { PatternId = patternId, Name = "Pattern1", Pattern = ".*" };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPatterns.CanUpdate(patterns_0, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPatterns.CanUpdate(command, App(patterns_0)));
         }
 
         [Fact]
@@ -175,7 +176,17 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdatePattern { PatternId = patternId, Name = "Pattern1", Pattern = ".*" };
 
-            GuardAppPatterns.CanUpdate(patterns_1, command);
+            GuardAppPatterns.CanUpdate(command, App(patterns_1));
+        }
+
+        private static IAppEntity App(AppPatterns patterns)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Patterns)
+                .Returns(patterns);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppRolesTests.cs

@@ -5,6 +5,7 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using FakeItEasy;
 using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
@@ -21,15 +22,15 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
     {
         private readonly string roleName = "Role1";
         private readonly Roles roles_0 = Roles.Empty;
-        private readonly AppContributors contributors = AppContributors.Empty;
-        private readonly AppClients clients = AppClients.Empty;
+        private readonly AppClients clients = AppClients.Empty.Add("client", "secret", "clientRole");
+        private readonly AppContributors contributors = AppContributors.Empty.Assign("contributor", "contributorRole");
 
         [Fact]
         public void CanAdd_should_throw_exception_if_name_empty()
         {
             var command = new AddRole { Name = null! };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanAdd(roles_0, command),
+            ValidationAssert.Throws(() => GuardAppRoles.CanAdd(command, App(roles_0)),
                 new ValidationError("Name is required.", "Name"));
         }
 
@@ -40,7 +41,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new AddRole { Name = roleName };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanAdd(roles_1, command),
+            ValidationAssert.Throws(() => GuardAppRoles.CanAdd(command, App(roles_1)),
                 new ValidationError("A role with the same name already exists."));
         }
 
@@ -49,7 +50,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new AddRole { Name = roleName };
 
-            GuardAppRoles.CanAdd(roles_0, command);
+            GuardAppRoles.CanAdd(command, App(roles_0));
         }
 
         [Fact]
@@ -57,7 +58,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new DeleteRole { Name = null! };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_0, command, contributors, clients),
+            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(command, App(roles_0)),
                 new ValidationError("Name is required.", "Name"));
         }
 
@@ -66,30 +67,28 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new DeleteRole { Name = roleName };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppRoles.CanDelete(roles_0, command, contributors, clients));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppRoles.CanDelete(command, App(roles_0)));
         }
 
         [Fact]
         public void CanDelete_should_throw_exception_if_contributor_found()
         {
-            var roles_1 = roles_0.Add(roleName);
+            var roles_1 = roles_0.Add("contributorRole");
 
-            var command = new DeleteRole { Name = roleName };
+            var command = new DeleteRole { Name = "contributorRole" };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_1, command, contributors.Assign("1", roleName), clients),
+            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(command, App(roles_1)),
                 new ValidationError("Cannot remove a role when a contributor is assigned."));
         }
 
         [Fact]
         public void CanDelete_should_throw_exception_if_client_found()
         {
-            var roles_1 = roles_0.Add(roleName);
+            var roles_1 = roles_0.Add("clientRole");
 
-            var clients_1 = clients.Add("1", "my-secret", roleName);
-
-            var command = new DeleteRole { Name = roleName };
+            var command = new DeleteRole { Name = "clientRole" };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_1, command, contributors, clients_1),
+            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(command, App(roles_1)),
                 new ValidationError("Cannot remove a role when a client is assigned."));
         }
 
@@ -100,7 +99,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new DeleteRole { Name = Role.Developer };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_1, command, contributors, clients),
+            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(command, App(roles_1)),
                 new ValidationError("Cannot delete a default role."));
         }
 
@@ -111,7 +110,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new DeleteRole { Name = roleName };
 
-            GuardAppRoles.CanDelete(roles_1, command, contributors, clients);
+            GuardAppRoles.CanDelete(command, App(roles_1));
         }
 
         [Fact]
@@ -121,7 +120,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdateRole { Name = null!, Permissions = new[] { "P1" } };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(roles_1, command),
+            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(command, App(roles_1)),
                 new ValidationError("Name is required.", "Name"));
         }
 
@@ -132,7 +131,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdateRole { Name = roleName };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(roles_1, command),
+            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(command, App(roles_1)),
                 new ValidationError("Permissions is required.", "Permissions"));
         }
 
@@ -143,7 +142,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdateRole { Name = Role.Developer, Permissions = new[] { "P1" } };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(roles_1, command),
+            ValidationAssert.Throws(() => GuardAppRoles.CanUpdate(command, App(roles_1)),
                 new ValidationError("Cannot update a default role."));
         }
 
@@ -152,7 +151,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateRole { Name = roleName, Permissions = new[] { "P1" } };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppRoles.CanUpdate(roles_0, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppRoles.CanUpdate(command, App(roles_0)));
         }
 
         [Fact]
@@ -162,7 +161,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdateRole { Name = roleName, Permissions = new[] { "P1" } };
 
-            GuardAppRoles.CanUpdate(roles_1, command);
+            GuardAppRoles.CanUpdate(command, App(roles_1));
         }
 
         [Fact]
@@ -172,7 +171,21 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new UpdateRole { Name = roleName, Permissions = new[] { "P1" } };
 
-            GuardAppRoles.CanUpdate(roles_1, command);
+            GuardAppRoles.CanUpdate(command, App(roles_1));
+        }
+
+        private IAppEntity App(Roles roles)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Contributors)
+                .Returns(contributors);
+            A.CallTo(() => app.Clients)
+                .Returns(clients);
+            A.CallTo(() => app.Roles)
+                .Returns(roles);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppTests.cs

@@ -81,7 +81,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             AppPlan? plan = null;
 
-            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, plan, appPlans),
+            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, App(plan), appPlans),
                 new ValidationError("Plan ID is required.", "PlanId"));
         }
 
@@ -92,7 +92,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             AppPlan? plan = null;
 
-            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, plan, appPlans),
+            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, App(plan), appPlans),
                 new ValidationError("A plan with this id does not exist.", "PlanId"));
         }
 
@@ -103,7 +103,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var plan = new AppPlan(new RefToken("user", "other"), "premium");
 
-            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, plan, appPlans),
+            ValidationAssert.Throws(() => GuardApp.CanChangePlan(command, App(plan), appPlans),
                 new ValidationError("Plan can only changed from the user who configured the plan initially."));
         }
 
@@ -114,7 +114,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var plan = new AppPlan(command.Actor, "basic");
 
-            GuardApp.CanChangePlan(command, plan, appPlans);
+            GuardApp.CanChangePlan(command, App(plan), appPlans);
         }
 
         [Fact]
@@ -124,7 +124,17 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var plan = new AppPlan(command.Actor, "premium");
 
-            GuardApp.CanChangePlan(command, plan, appPlans);
+            GuardApp.CanChangePlan(command, App(plan), appPlans);
+        }
+
+        private static IAppEntity App(AppPlan? plan)
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Plan)
+                .Returns(plan);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppWorkflowTests.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using System.Collections.Generic;
+using FakeItEasy;
 using Squidex.Domain.Apps.Core.Contents;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Apps.Commands;
@@ -52,7 +53,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = DomainId.NewGuid()
             };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppWorkflows.CanUpdate(workflows, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppWorkflows.CanUpdate(command, App()));
         }
 
         [Fact]
@@ -60,7 +61,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateWorkflow { WorkflowId = workflowId };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Workflow is required.", "Workflow"));
         }
 
@@ -78,7 +79,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Initial step is required.", "Workflow.Initial"));
         }
 
@@ -96,7 +97,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Initial step cannot be published step.", "Workflow.Initial"));
         }
 
@@ -114,7 +115,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Workflow must have a published step.", "Workflow.Steps"));
         }
 
@@ -133,7 +134,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Step is required.", "Workflow.Steps.Published"));
         }
 
@@ -157,7 +158,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Transition has an invalid target.", "Workflow.Steps.Published.Transitions.Archived"));
         }
 
@@ -182,7 +183,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                 WorkflowId = workflowId
             };
 
-            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(workflows, command),
+            ValidationAssert.Throws(() => GuardAppWorkflows.CanUpdate(command, App()),
                 new ValidationError("Transition is required.", "Workflow.Steps.Published.Transitions.Draft"));
         }
 
@@ -191,7 +192,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new UpdateWorkflow { Workflow = Workflow.Default, WorkflowId = workflowId };
 
-            GuardAppWorkflows.CanUpdate(workflows, command);
+            GuardAppWorkflows.CanUpdate(command, App());
         }
 
         [Fact]
@@ -199,7 +200,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new DeleteWorkflow { WorkflowId = DomainId.NewGuid() };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppWorkflows.CanDelete(workflows, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppWorkflows.CanDelete(command, App()));
         }
 
         [Fact]
@@ -207,7 +208,17 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
         {
             var command = new DeleteWorkflow { WorkflowId = workflowId };
 
-            GuardAppWorkflows.CanDelete(workflows, command);
+            GuardAppWorkflows.CanDelete(command, App());
+        }
+
+        private IAppEntity App()
+        {
+            var app = A.Fake<IAppEntity>();
+
+            A.CallTo(() => app.Workflows)
+                .Returns(workflows);
+
+            return app;
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/AssetDomainObjectTests.cs

@@ -14,6 +14,7 @@ using Squidex.Domain.Apps.Core.Assets;
 using Squidex.Domain.Apps.Core.Tags;
 using Squidex.Domain.Apps.Entities.Assets.Commands;
 using Squidex.Domain.Apps.Entities.Assets.State;
+using Squidex.Domain.Apps.Entities.Contents;
 using Squidex.Domain.Apps.Entities.Contents.Repositories;
 using Squidex.Domain.Apps.Entities.TestHelpers;
 using Squidex.Domain.Apps.Events.Assets;
@@ -254,7 +255,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
 
             await ExecuteCreateAsync();
 
-            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, Id))
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, Id, SearchScope.All))
                 .Returns(true);
 
             await Assert.ThrowsAsync<DomainException>(() => PublishAsync(command));
@@ -267,7 +268,7 @@ namespace Squidex.Domain.Apps.Entities.Assets
 
             await ExecuteCreateAsync();
 
-            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, Id))
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, Id, SearchScope.All))
                 .Returns(true);
 
             await PublishAsync(command);

backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Guards/GuardAssetFolderTests.cs

@@ -52,7 +52,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             var command = new CreateAssetFolder { AppId = appId, FolderName = "My Folder", ParentId = DomainId.NewGuid() };
 
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
-                .Returns(new List<IAssetFolderEntity> { CreateFolder() });
+                .Returns(new List<IAssetFolderEntity> { AssetFolder() });
 
             await GuardAssetFolder.CanCreate(command, assetQuery);
         }
@@ -75,11 +75,11 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
                 .Returns(new List<IAssetFolderEntity>
                 {
-                    CreateFolder(id),
-                    CreateFolder(command.ParentId)
+                    AssetFolder(id),
+                    AssetFolder(command.ParentId)
                 });
 
-            await ValidationAssert.ThrowsAsync(() => GuardAssetFolder.CanMove(command, assetQuery, id, DomainId.NewGuid()),
+            await ValidationAssert.ThrowsAsync(() => GuardAssetFolder.CanMove(command, AssetFolder(id), assetQuery),
                 new ValidationError("Cannot add folder to its own child.", "ParentId"));
         }
 
@@ -91,7 +91,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
                 .Returns(new List<IAssetFolderEntity>());
 
-            await ValidationAssert.ThrowsAsync(() => GuardAssetFolder.CanMove(command, assetQuery, DomainId.NewGuid(), DomainId.NewGuid()),
+            await ValidationAssert.ThrowsAsync(() => GuardAssetFolder.CanMove(command, AssetFolder(), assetQuery),
                 new ValidationError("Asset folder does not exist.", "ParentId"));
         }
 
@@ -101,9 +101,9 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             var command = new MoveAssetFolder { AppId = appId, ParentId = DomainId.NewGuid() };
 
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
-                .Returns(new List<IAssetFolderEntity> { CreateFolder() });
+                .Returns(new List<IAssetFolderEntity> { AssetFolder() });
 
-            await GuardAssetFolder.CanMove(command, assetQuery, DomainId.NewGuid(), DomainId.NewGuid());
+            await GuardAssetFolder.CanMove(command, AssetFolder(), assetQuery);
         }
 
         [Fact]
@@ -111,7 +111,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
         {
             var command = new MoveAssetFolder { AppId = appId, ParentId = DomainId.NewGuid() };
 
-            await GuardAssetFolder.CanMove(command, assetQuery, DomainId.NewGuid(), command.ParentId);
+            await GuardAssetFolder.CanMove(command, AssetFolder(parentId: command.ParentId), assetQuery);
         }
 
         [Fact]
@@ -119,7 +119,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
         {
             var command = new MoveAssetFolder { AppId = appId };
 
-            await GuardAssetFolder.CanMove(command, assetQuery, DomainId.NewGuid(), DomainId.NewGuid());
+            await GuardAssetFolder.CanMove(command, AssetFolder(), assetQuery);
         }
 
         [Fact]
@@ -147,11 +147,16 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             GuardAssetFolder.CanDelete(command);
         }
 
-        private static IAssetFolderEntity CreateFolder(DomainId id = default)
+        private IAssetFolderEntity AssetFolder(DomainId id = default, DomainId parentId = default)
         {
             var assetFolder = A.Fake<IAssetFolderEntity>();
 
-            A.CallTo(() => assetFolder.Id).Returns(id);
+            A.CallTo(() => assetFolder.Id)
+                .Returns(id == default ? DomainId.NewGuid() : id);
+            A.CallTo(() => assetFolder.AppId)
+                .Returns(appId);
+            A.CallTo(() => assetFolder.ParentId)
+                .Returns(parentId == default ? DomainId.NewGuid() : parentId);
 
             return assetFolder;
         }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Guards/GuardAssetTests.cs

@@ -10,6 +10,8 @@ using System.Threading.Tasks;
 using FakeItEasy;
 using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Assets.Commands;
+using Squidex.Domain.Apps.Entities.Contents;
+using Squidex.Domain.Apps.Entities.Contents.Repositories;
 using Squidex.Domain.Apps.Entities.TestHelpers;
 using Squidex.Infrastructure;
 using Squidex.Infrastructure.Validation;
@@ -20,6 +22,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
     public class GuardAssetTests : IClassFixture<TranslationsFixture>
     {
         private readonly IAssetQueryService assetQuery = A.Fake<IAssetQueryService>();
+        private readonly IContentRepository contentRepository = A.Fake<IContentRepository>();
         private readonly NamedId<DomainId> appId = NamedId.Of(DomainId.NewGuid(), "my-app");
 
         [Fact]
@@ -28,7 +31,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             var command = new CreateAsset { AppId = appId, ParentId = DomainId.NewGuid() };
 
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
-                .Returns(new List<IAssetFolderEntity> { CreateFolder() });
+                .Returns(new List<IAssetFolderEntity> { AssetFolder() });
 
             await GuardAsset.CanCreate(command, assetQuery);
         }
@@ -61,7 +64,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
                 .Returns(new List<IAssetFolderEntity>());
 
-            await ValidationAssert.ThrowsAsync(() => GuardAsset.CanMove(command, assetQuery, DomainId.NewGuid()),
+            await ValidationAssert.ThrowsAsync(() => GuardAsset.CanMove(command, Asset(), assetQuery),
                 new ValidationError("Asset folder does not exist.", "ParentId"));
         }
 
@@ -70,7 +73,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
         {
             var command = new MoveAsset { AppId = appId, ParentId = DomainId.NewGuid() };
 
-            await GuardAsset.CanMove(command, assetQuery, command.ParentId);
+            await GuardAsset.CanMove(command, Asset(parentId: command.ParentId), assetQuery);
         }
 
         [Fact]
@@ -79,9 +82,9 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
             var command = new MoveAsset { AppId = appId, ParentId = DomainId.NewGuid() };
 
             A.CallTo(() => assetQuery.FindAssetFolderAsync(appId.Id, command.ParentId))
-                .Returns(new List<IAssetFolderEntity> { CreateFolder() });
+                .Returns(new List<IAssetFolderEntity> { AssetFolder() });
 
-            await GuardAsset.CanMove(command, assetQuery, DomainId.NewGuid());
+            await GuardAsset.CanMove(command, Asset(), assetQuery);
         }
 
         [Fact]
@@ -89,7 +92,7 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
         {
             var command = new MoveAsset { AppId = appId };
 
-            await GuardAsset.CanMove(command, assetQuery, DomainId.NewGuid());
+            await GuardAsset.CanMove(command, Asset(), assetQuery);
         }
 
         [Fact]
@@ -117,18 +120,50 @@ namespace Squidex.Domain.Apps.Entities.Assets.Guards
         }
 
         [Fact]
-        public void CanDelete_should_not_throw_exception()
+        public async Task CanDelete_should_throw_exception_if_referenced()
+        {
+            var asset = Asset();
+
+            var command = new DeleteAsset { AppId = appId, CheckReferrers = true };
+
+            A.CallTo(() => contentRepository.HasReferrersAsync(appId.Id, asset.Id, SearchScope.All))
+                .Returns(true);
+
+            await Assert.ThrowsAsync<DomainException>(() => GuardAsset.CanDelete(command, asset, contentRepository));
+        }
+
+        [Fact]
+        public async Task CanDelete_should_not_throw_exception()
         {
             var command = new DeleteAsset { AppId = appId };
 
-            GuardAsset.CanDelete(command);
+            await GuardAsset.CanDelete(command, Asset(), contentRepository);
+        }
+
+        private IAssetEntity Asset(DomainId id = default, DomainId parentId = default)
+        {
+            var asset = A.Fake<IAssetEntity>();
+
+            A.CallTo(() => asset.Id)
+                .Returns(id == default ? DomainId.NewGuid() : id);
+            A.CallTo(() => asset.AppId)
+                .Returns(appId);
+            A.CallTo(() => asset.ParentId)
+                .Returns(parentId == default ? DomainId.NewGuid() : parentId);
+
+            return asset;
         }
 
-        private static IAssetFolderEntity CreateFolder(DomainId id = default)
+        private IAssetFolderEntity AssetFolder(DomainId id = default, DomainId parentId = default)
         {
             var assetFolder = A.Fake<IAssetFolderEntity>();
 
-            A.CallTo(() => assetFolder.Id).Returns(id);
+            A.CallTo(() => assetFolder.Id)
+                .Returns(id == default ? DomainId.NewGuid() : id);
+            A.CallTo(() => assetFolder.AppId)
+                .Returns(appId);
+            A.CallTo(() => assetFolder.ParentId)
+                .Returns(parentId == default ? DomainId.NewGuid() : parentId);
 
             return assetFolder;
         }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Comments/Guards/GuardCommentsTests.cs

@@ -51,7 +51,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            ValidationAssert.Throws(() => GuardComments.CanUpdate(commentsId, events, command),
+            ValidationAssert.Throws(() => GuardComments.CanUpdate(command, commentsId, events),
                 new ValidationError("Text is required.", "Text"));
         }
 
@@ -66,7 +66,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            Assert.Throws<DomainException>(() => GuardComments.CanUpdate(commentsId, events, command));
+            Assert.Throws<DomainException>(() => GuardComments.CanUpdate(command, commentsId, events));
         }
 
         [Fact]
@@ -77,7 +77,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
 
             var events = new List<Envelope<CommentsEvent>>();
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanUpdate(commentsId, events, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanUpdate(command, commentsId, events));
         }
 
         [Fact]
@@ -92,7 +92,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentDeleted { CommentId = commentId }).To<CommentsEvent>()
             };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanUpdate(commentsId, events, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanUpdate(command, commentsId, events));
         }
 
         [Fact]
@@ -106,7 +106,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            GuardComments.CanUpdate(user1.Identifier, events, command);
+            GuardComments.CanUpdate(command, user1.Identifier, events);
         }
 
         [Fact]
@@ -120,7 +120,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            GuardComments.CanUpdate(commentsId, events, command);
+            GuardComments.CanUpdate(command, commentsId, events);
         }
 
         [Fact]
@@ -134,7 +134,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            Assert.Throws<DomainException>(() => GuardComments.CanDelete(commentsId, events, command));
+            Assert.Throws<DomainException>(() => GuardComments.CanDelete(command, commentsId, events));
         }
 
         [Fact]
@@ -145,7 +145,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
 
             var events = new List<Envelope<CommentsEvent>>();
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanDelete(commentsId, events, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanDelete(command, commentsId, events));
         }
 
         [Fact]
@@ -160,7 +160,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentDeleted { CommentId = commentId })
             };
 
-            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanDelete(commentsId, events, command));
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardComments.CanDelete(command, commentsId, events));
         }
 
         [Fact]
@@ -174,7 +174,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            GuardComments.CanDelete(user1.Identifier, events, command);
+            GuardComments.CanDelete(command, user1.Identifier, events);
         }
 
         [Fact]
@@ -188,7 +188,7 @@ namespace Squidex.Domain.Apps.Entities.Comments.Guards
                 Envelope.Create<CommentsEvent>(new CommentCreated { CommentId = commentId, Actor = user1 }).To<CommentsEvent>()
             };
 
-            GuardComments.CanDelete(commentsId, events, command);
+            GuardComments.CanDelete(command, commentsId, events);
         }
     }
 }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/ContentDomainObjectTests.cs

@@ -565,12 +565,40 @@ namespace Squidex.Domain.Apps.Entities.Contents
         }
 
         [Fact]
-        public async Task Delete_should_create_events_and_update_deleted_flag()
+        public async Task ChangeStatus_should_throw_exception_if_referenced_by_other_item()
         {
-            var command = new DeleteContent();
+            var command = new ChangeContentStatus { Status = Status.Draft, CheckReferrers = true };
+
+            await ExecuteCreateAsync();
+            await ExecuteChangeStatusAsync(Status.Published);
+
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId, SearchScope.Published))
+                .Returns(true);
+
+            await Assert.ThrowsAsync<DomainException>(() => PublishAsync(command));
+        }
+
+        [Fact]
+        public async Task ChangeStatus_should_not_throw_exception_if_referenced_by_other_item_but_forced()
+        {
+            var command = new ChangeContentStatus { Status = Status.Draft, CheckReferrers = false };
+
+            await ExecuteCreateAsync();
+            await ExecuteChangeStatusAsync(Status.Published);
 
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId, SearchScope.Published))
+                .Returns(true);
+
+            await PublishAsync(command);
+        }
+
+        [Fact]
+        public async Task Delete_should_create_events_and_update_deleted_flag()
+        {
             await ExecuteCreateAsync();
 
+            var command = new DeleteContent();
+
             var result = await PublishAsync(command);
 
             result.ShouldBeEquivalent(new EntitySavedResult(1));
@@ -589,11 +617,11 @@ namespace Squidex.Domain.Apps.Entities.Contents
         [Fact]
         public async Task Delete_should_throw_exception_if_referenced_by_other_item()
         {
-            var command = new DeleteContent { CheckReferrers = true };
-
             await ExecuteCreateAsync();
 
-            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId))
+            var command = new DeleteContent { CheckReferrers = true };
+
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId, SearchScope.All))
                 .Returns(true);
 
             await Assert.ThrowsAsync<DomainException>(() => PublishAsync(command));
@@ -606,7 +634,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
 
             await ExecuteCreateAsync();
 
-            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId))
+            A.CallTo(() => contentRepository.HasReferrersAsync(AppId, contentId, SearchScope.All))
                 .Returns(true);
 
             await PublishAsync(command);

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

@@ -15,7 +15,6 @@ using Squidex.Domain.Apps.Core.TestHelpers;
 using Squidex.Domain.Apps.Entities.Contents.Commands;
 using Squidex.Domain.Apps.Entities.Contents.Guards;
 using Squidex.Domain.Apps.Entities.Contents.Repositories;
-using Squidex.Domain.Apps.Entities.Contents.State;
 using Squidex.Domain.Apps.Entities.Schemas;
 using Squidex.Domain.Apps.Entities.TestHelpers;
 using Squidex.Infrastructure;
@@ -39,7 +38,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent();
 
-            await ValidationAssert.ThrowsAsync(() => GuardContent.CanCreate(schema, contentWorkflow, command),
+            await ValidationAssert.ThrowsAsync(() => GuardContent.CanCreate(command, contentWorkflow, schema),
                 new ValidationError("Data is required.", "Data"));
         }
 
@@ -50,7 +49,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent { Data = new NamedContentData() };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(schema, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(command, contentWorkflow, schema));
         }
 
         [Fact]
@@ -60,7 +59,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent { Data = new NamedContentData(), ContentId = schema.Id };
 
-            await GuardContent.CanCreate(schema, contentWorkflow, command);
+            await GuardContent.CanCreate(command, contentWorkflow, schema);
         }
 
         [Fact]
@@ -72,7 +71,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent { Data = new NamedContentData(), Publish = true };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(schema, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(command, contentWorkflow, schema));
         }
 
         [Fact]
@@ -84,7 +83,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent { Data = new NamedContentData(), Publish = true };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(schema, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanCreate(command, contentWorkflow, schema));
         }
 
         [Fact]
@@ -94,7 +93,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
 
             var command = new CreateContent { Data = new NamedContentData() };
 
-            await GuardContent.CanCreate(schema, contentWorkflow, command);
+            await GuardContent.CanCreate(command, contentWorkflow, schema);
         }
 
         [Fact]
@@ -105,7 +104,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new UpdateContent();
 
-            await ValidationAssert.ThrowsAsync(() => GuardContent.CanUpdate(content, contentWorkflow, command),
+            await ValidationAssert.ThrowsAsync(() => GuardContent.CanUpdate(command, content, contentWorkflow),
                 new ValidationError("Data is required.", "Data"));
         }
 
@@ -117,7 +116,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new UpdateContent { Data = new NamedContentData() };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanUpdate(content, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanUpdate(command, content, contentWorkflow));
         }
 
         [Fact]
@@ -128,7 +127,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new UpdateContent { Data = new NamedContentData(), User = user };
 
-            await GuardContent.CanUpdate(content, contentWorkflow, command);
+            await GuardContent.CanUpdate(command, content, contentWorkflow);
         }
 
         [Fact]
@@ -139,7 +138,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new PatchContent();
 
-            await ValidationAssert.ThrowsAsync(() => GuardContent.CanPatch(content, contentWorkflow, command),
+            await ValidationAssert.ThrowsAsync(() => GuardContent.CanPatch(command, content, contentWorkflow),
                 new ValidationError("Data is required.", "Data"));
         }
 
@@ -151,7 +150,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new PatchContent { Data = new NamedContentData() };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanPatch(content, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanPatch(command, content, contentWorkflow));
         }
 
         [Fact]
@@ -162,7 +161,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Draft);
             var command = new PatchContent { Data = new NamedContentData(), User = user };
 
-            await GuardContent.CanPatch(content, contentWorkflow, command);
+            await GuardContent.CanPatch(command, content, contentWorkflow);
         }
 
         [Fact]
@@ -173,7 +172,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Published);
             var command = new ChangeContentStatus { Status = Status.Draft };
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanChangeStatus(schema, content, contentWorkflow, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema));
         }
 
         [Fact]
@@ -187,7 +186,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             A.CallTo(() => contentWorkflow.CanMoveToAsync(content, content.Status, command.Status, user))
                 .Returns(true);
 
-            await ValidationAssert.ThrowsAsync(() => GuardContent.CanChangeStatus(schema, content, contentWorkflow, command),
+            await ValidationAssert.ThrowsAsync(() => GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema),
                 new ValidationError("Due time must be in the future.", "DueTime"));
         }
 
@@ -202,10 +201,24 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             A.CallTo(() => contentWorkflow.CanMoveToAsync(content, content.Status, command.Status, user))
                 .Returns(false);
 
-            await ValidationAssert.ThrowsAsync(() => GuardContent.CanChangeStatus(schema, content, contentWorkflow, command),
+            await ValidationAssert.ThrowsAsync(() => GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema),
                 new ValidationError("Cannot change status from Draft to Published.", "Status"));
         }
 
+        [Fact]
+        public async Task CanChangeStatus_should_throw_exception_if_referenced()
+        {
+            var schema = CreateSchema(true);
+
+            var content = CreateContent(Status.Published);
+            var command = new ChangeContentStatus { Status = Status.Draft, User = user };
+
+            A.CallTo(() => contentRepository.HasReferrersAsync(appId.Id, content.Id, SearchScope.Published))
+                .Returns(true);
+
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema));
+        }
+
         [Fact]
         public async Task CanChangeStatus_should_not_throw_exception_if_singleton_is_published()
         {
@@ -214,7 +227,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateDraftContent(Status.Draft);
             var command = new ChangeContentStatus { Status = Status.Published };
 
-            await GuardContent.CanChangeStatus(schema, content, contentWorkflow, command);
+            await GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema);
         }
 
         [Fact]
@@ -228,7 +241,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             A.CallTo(() => contentWorkflow.CanMoveToAsync(content, content.Status, command.Status, user))
                 .Returns(true);
 
-            await GuardContent.CanChangeStatus(schema, content, contentWorkflow, command);
+            await GuardContent.CanChangeStatus(command, content, contentWorkflow, contentRepository, schema);
         }
 
         [Fact]
@@ -279,7 +292,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Published);
             var command = new DeleteContent();
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanDelete(schema, content, contentRepository, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanDelete(command, content, contentRepository, schema));
         }
 
         [Fact]
@@ -290,10 +303,10 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Published);
             var command = new DeleteContent();
 
-            A.CallTo(() => contentRepository.HasReferrersAsync(appId.Id, content.Id))
+            A.CallTo(() => contentRepository.HasReferrersAsync(appId.Id, content.Id, SearchScope.All))
                 .Returns(true);
 
-            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanDelete(schema, content, contentRepository, command));
+            await Assert.ThrowsAsync<DomainException>(() => GuardContent.CanDelete(command, content, contentRepository, schema));
         }
 
         [Fact]
@@ -304,7 +317,7 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             var content = CreateContent(Status.Published);
             var command = new DeleteContent();
 
-            await GuardContent.CanDelete(schema, content, contentRepository, command);
+            await GuardContent.CanDelete(command, content, contentRepository, schema);
         }
 
         private void SetupCanUpdate(bool canUpdate)
@@ -324,22 +337,22 @@ namespace Squidex.Domain.Apps.Entities.Contents.Guard
             return Mocks.Schema(appId, NamedId.Of(DomainId.NewGuid(), "my-schema"), new Schema("schema", isSingleton: isSingleton));
         }
 
-        private ContentState CreateDraftContent(Status status)
+        private IContentEntity CreateDraftContent(Status status)
         {
-            return new ContentState
+            return new ContentEntity
             {
                 Id = DomainId.NewGuid(),
-                NewVersion = new ContentVersion(status, new NamedContentData()),
+                NewStatus = status,
                 AppId = appId
             };
         }
 
-        private ContentState CreateContent(Status status)
+        private IContentEntity CreateContent(Status status)
         {
-            return new ContentState
+            return new ContentEntity
             {
                 Id = DomainId.NewGuid(),
-                CurrentVersion = new ContentVersion(status, new NamedContentData()),
+                Status = status,
                 AppId = appId
             };
         }

backend/tests/Squidex.Domain.Apps.Entities.Tests/Rules/Guards/GuardRuleTests.cs

@@ -41,14 +41,15 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
         [Fact]
         public async Task CanCreate_should_throw_exception_if_trigger_null()
         {
-            var command = CreateCommand(new CreateRule
+            var command = new CreateRule
             {
                 Trigger = null!,
                 Action = new TestAction
                 {
                     Url = validUrl
-                }
-            });
+                },
+                AppId = appId
+            };
 
             await ValidationAssert.ThrowsAsync(() => GuardRule.CanCreate(command, appProvider),
                 new ValidationError("Trigger is required.", "Trigger"));
@@ -57,14 +58,15 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
         [Fact]
         public async Task CanCreate_should_throw_exception_if_action_null()
         {
-            var command = CreateCommand(new CreateRule
+            var command = new CreateRule
             {
                 Trigger = new ContentChangedTriggerV2
                 {
                     Schemas = ReadOnlyCollection.Empty<ContentChangedTriggerSchemaV2>()
                 },
-                Action = null!
-            });
+                Action = null!,
+                AppId = appId
+            };
 
             await ValidationAssert.ThrowsAsync(() => GuardRule.CanCreate(command, appProvider),
                 new ValidationError("Action is required.", "Action"));
@@ -73,7 +75,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
         [Fact]
         public async Task CanCreate_should_not_throw_exception_if_trigger_and_action_valid()
         {
-            var command = CreateCommand(new CreateRule
+            var command = new CreateRule
             {
                 Trigger = new ContentChangedTriggerV2
                 {
@@ -82,8 +84,9 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
                 Action = new TestAction
                 {
                     Url = validUrl
-                }
-            });
+                },
+                AppId = appId
+            };
 
             await GuardRule.CanCreate(command, appProvider);
         }
@@ -93,7 +96,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
         {
             var command = new UpdateRule();
 
-            await GuardRule.CanUpdate(command, appId.Id, appProvider);
+            await GuardRule.CanUpdate(command, Rule(), appProvider);
         }
 
         [Fact]
@@ -101,7 +104,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
         {
             var command = new UpdateRule { Name = "MyName" };
 
-            await GuardRule.CanUpdate(command, appId.Id, appProvider);
+            await GuardRule.CanUpdate(command, Rule(), appProvider);
         }
 
         [Fact]
@@ -120,7 +123,7 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
                 Name = "NewName"
             };
 
-            await GuardRule.CanUpdate(command, appId.Id, appProvider);
+            await GuardRule.CanUpdate(command, Rule(), appProvider);
         }
 
         [Fact]
@@ -147,11 +150,13 @@ namespace Squidex.Domain.Apps.Entities.Rules.Guards
             GuardRule.CanDelete(command);
         }
 
-        private CreateRule CreateCommand(CreateRule command)
+        private IRuleEntity Rule()
         {
-            command.AppId = appId;
+            var rule = A.Fake<IRuleEntity>();
+
+            A.CallTo(() => rule.AppId).Returns(appId);
 
-            return command;
+            return rule;
         }
     }
 }

frontend/app/app.module.ts

@@ -55,7 +55,7 @@ export function configCurrency() {
     return new CurrencyConfig('EUR', '€', true);
 }
 
-export function configTranslations() {
+export function configLocalizerService() {
     if (process.env.NODE_ENV === 'production') {
         return new LocalizerService(window['texts']);
     } else {
@@ -86,8 +86,8 @@ export function configTranslations() {
         { provide: ApiUrlConfig, useFactory: configApiUrl },
         { provide: CurrencyConfig, useFactory: configCurrency },
         { provide: DecimalSeparatorConfig, useFactory: configDecimalSeparator },
+        { provide: LocalizerService, useFactory: configLocalizerService },
         { provide: TitlesConfig, useFactory: configTitles },
-        { provide: LocalizerService, useFactory: configTranslations },
         { provide: UIOptions, useFactory: configUIOptions }
     ],
     entryComponents: [AppComponent]

frontend/app/features/content/pages/content/content-history-page.component.ts

@@ -73,7 +73,7 @@ export class ContentHistoryPageComponent extends ResourceOwner implements OnInit
         this.contentPage.checkPendingChangesBeforeChangingStatus().pipe(
                 filter(x => !!x),
                 switchMap(_ => this.dueTimeSelector.selectDueTime(status)),
-                switchMap(d => this.contentsState.changeStatus(this.content, status, d)),
+                switchMap(d => this.contentsState.changeManyStatus([this.content], status, d)),
                 onErrorResumeNext())
             .subscribe();
     }

frontend/app/shared/services/contents.service.spec.ts

@@ -366,7 +366,7 @@ describe('ContentsService', () => {
 
         let content: ContentDto;
 
-        contentsService.putStatus('my-app', resource, 'published', '2016-12-12T10:10:00', version).subscribe(result => {
+        contentsService.putStatus('my-app', resource, 'published', true, '2016-12-12T10:10:00', version).subscribe(result => {
             content = result;
         });
 

frontend/app/shared/services/contents.service.ts

@@ -301,12 +301,12 @@ export class ContentsService {
             pretifyError('i18n:contents.deleteVersionFailed'));
     }
 
-    public putStatus(appName: string, resource: Resource, status: string, dueTime: string | null, version: Version): Observable<ContentDto> {
+    public putStatus(appName: string, resource: Resource, status: string, checkReferrers: boolean, dueTime: string | null, version: Version): Observable<ContentDto> {
         const link = resource._links[`status/${status}`];
 
         const url = this.apiUrl.buildUrl(link.href);
 
-        return HTTP.requestVersioned(this.http, link.method, url, version, { status, dueTime }).pipe(
+        return HTTP.requestVersioned(this.http, link.method, url, version, { status, dueTime, checkReferrers }).pipe(
             map(({ payload }) => {
                 return parseContent(payload.body);
             }),

frontend/app/shared/state/contents.state.ts

@@ -224,7 +224,28 @@ export abstract class ContentsStateBase extends State<Snapshot> {
     }
 
     public changeManyStatus(contentsToChange: ReadonlyArray<ContentDto>, status: string, dueTime: string | null): Observable<any> {
-        return this.updateManyStatus(contentsToChange, status, dueTime).pipe(
+        return this.changeManyStatusCore(contentsToChange, status, true, dueTime).pipe(
+            switchMap(results => {
+                const referenced = results.filter(x => x.error?.statusCode === 400).map(x => x.content);
+
+                if (referenced.length > 0) {
+                    return this.dialogs.confirm(
+                        'i18n:contents.unpublishReferrerConfirmTitle',
+                        'i18n:contents.unpublishReferrerConfirmText',
+                        'unpublishReferencngContent'
+                    ).pipe(
+                        switchMap(confirmed => {
+                            if (confirmed) {
+                                return this.changeManyStatusCore(referenced, status, false, dueTime);
+                            } else {
+                                return of([]);
+                            }
+                        })
+                    );
+                } else {
+                    return of(results);
+                }
+            }),
             tap(results => {
                 const errors = results.filter(x => !!x.error);
 
@@ -260,7 +281,7 @@ export abstract class ContentsStateBase extends State<Snapshot> {
                     return this.dialogs.confirm(
                         'i18n:contents.deleteReferrerConfirmTitle',
                         'i18n:contents.deleteReferrerConfirmText',
-                        'deleteReferencedAsset'
+                        'deleteReferencingContent'
                     ).pipe(
                         switchMap(confirmed => {
                             if (confirmed) {
@@ -302,14 +323,6 @@ export abstract class ContentsStateBase extends State<Snapshot> {
             shareSubscribed(this.dialogs, { silent: true }));
     }
 
-    public changeStatus(content: ContentDto, status: string, dueTime: string | null): Observable<ContentDto> {
-        return this.contentsService.putStatus(this.appName, content, status, dueTime, content.version).pipe(
-            tap(updated => {
-                this.replaceContent(updated, content.version, 'i18n:contents.updated');
-            }),
-            shareSubscribed(this.dialogs));
-    }
-
     public update(content: ContentDto, request: any): Observable<ContentDto> {
         return this.contentsService.putContent(this.appName, content, request, content.version).pipe(
             tap(updated => {
@@ -379,9 +392,9 @@ export abstract class ContentsStateBase extends State<Snapshot> {
             contents.map(c => this.deleteCore(c, checkReferrers)));
     }
 
-    private updateManyStatus(contents: ReadonlyArray<ContentDto>, status: string, dueTime: string | null): Observable<ReadonlyArray<Updated>> {
+    private changeManyStatusCore(contents: ReadonlyArray<ContentDto>, status: string, checkReferrers: boolean, dueTime: string | null): Observable<ReadonlyArray<Updated>> {
         return forkJoin(
-            contents.map(c => this.updateStatus(c, status, dueTime)));
+            contents.map(c => this.changeStatusCore(c, status, checkReferrers, dueTime)));
     }
 
     private deleteCore(content: ContentDto, checkReferrers: boolean): Observable<Updated> {
@@ -389,8 +402,8 @@ export abstract class ContentsStateBase extends State<Snapshot> {
             map(() => ({ content })), catchError(error => of({ content, error })));
     }
 
-    private updateStatus(content: ContentDto, status: string, dueTime: string | null): Observable<Updated> {
-        return this.contentsService.putStatus(this.appName, content, status, dueTime, content.version).pipe(
+    private changeStatusCore(content: ContentDto, status: string, checkReferrers: boolean, dueTime: string | null): Observable<Updated> {
+        return this.contentsService.putStatus(this.appName, content, status, checkReferrers, dueTime, content.version).pipe(
             map(x => ({ content: x })), catchError(error => of({ content, error })));
     }