Merge pull request #208 from Squidex/feature-app-pattern

Feature app pattern

src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs

@@ -0,0 +1,51 @@
+// ==========================================================================
+//  AppPattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System.Diagnostics.Contracts;
+using Squidex.Infrastructure;
+
+namespace Squidex.Domain.Apps.Core.Apps
+{
+    public sealed class AppPattern
+    {
+        private readonly string name;
+        private readonly string pattern;
+        private readonly string message;
+
+        public string Name
+        {
+            get { return name; }
+        }
+
+        public string Pattern
+        {
+            get { return pattern; }
+        }
+
+        public string Message
+        {
+            get { return message; }
+        }
+
+        public AppPattern(string name, string pattern, string message = null)
+        {
+            Guard.NotNullOrEmpty(name, nameof(name));
+            Guard.NotNullOrEmpty(pattern, nameof(pattern));
+
+            this.name = name;
+            this.pattern = pattern;
+            this.message = message;
+        }
+
+        [Pure]
+        public AppPattern Update(string name, string pattern, string message)
+        {
+            return new AppPattern(name, pattern, message);
+        }
+    }
+}

src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs

@@ -0,0 +1,57 @@
+// ==========================================================================
+//  AppPatterns.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+using System;
+using System.Collections.Immutable;
+using System.Diagnostics.Contracts;
+using Squidex.Infrastructure;
+
+namespace Squidex.Domain.Apps.Core.Apps
+{
+    public sealed class AppPatterns : DictionaryWrapper<Guid, AppPattern>
+    {
+        public static readonly AppPatterns Empty = new AppPatterns();
+
+        private AppPatterns()
+            : base(ImmutableDictionary<Guid, AppPattern>.Empty)
+        {
+        }
+
+        public AppPatterns(ImmutableDictionary<Guid, AppPattern> inner)
+            : base(inner)
+        {
+        }
+
+        [Pure]
+        public AppPatterns Add(Guid id, string name, string pattern, string message)
+        {
+            var newPattern = new AppPattern(name, pattern, message);
+
+            return new AppPatterns(Inner.Add(id, newPattern));
+        }
+
+        [Pure]
+        public AppPatterns Remove(Guid id)
+        {
+            return new AppPatterns(Inner.Remove(id));
+        }
+
+        [Pure]
+        public AppPatterns Update(Guid id, string name, string pattern, string message)
+        {
+            Guard.NotNullOrEmpty(name, nameof(name));
+            Guard.NotNullOrEmpty(pattern, nameof(pattern));
+
+            if (!TryGetValue(id, out var appPattern))
+            {
+                return this;
+            }
+
+            return new AppPatterns(Inner.SetItem(id, appPattern.Update(name, pattern, message)));
+        }
+    }
+}

src/Squidex.Domain.Apps.Core.Model/Apps/Json/AppPatternsConverter.cs

@@ -0,0 +1,37 @@
+// ==========================================================================
+//  AppPatternsConverter.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+using System;
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using Newtonsoft.Json;
+using Squidex.Infrastructure.Json;
+
+namespace Squidex.Domain.Apps.Core.Apps.Json
+{
+    public sealed class AppPatternsConverter : JsonClassConverter<AppPatterns>
+    {
+        protected override void WriteValue(JsonWriter writer, AppPatterns value, JsonSerializer serializer)
+        {
+            var json = new Dictionary<Guid, JsonAppPattern>(value.Count);
+
+            foreach (var client in value)
+            {
+                json.Add(client.Key, new JsonAppPattern(client.Value));
+            }
+
+            serializer.Serialize(writer, json);
+        }
+
+        protected override AppPatterns ReadValue(JsonReader reader, Type objectType, JsonSerializer serializer)
+        {
+            var json = serializer.Deserialize<Dictionary<Guid, JsonAppPattern>>(reader);
+
+            return new AppPatterns(json.ToImmutableDictionary(x => x.Key, x => x.Value.ToPattern()));
+        }
+    }
+}

src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppPattern.cs

@@ -0,0 +1,39 @@
+// ==========================================================================
+//  JsonAppPattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+using System;
+using Newtonsoft.Json;
+using Squidex.Infrastructure.Reflection;
+
+namespace Squidex.Domain.Apps.Core.Apps.Json
+{
+    public class JsonAppPattern
+    {
+        [JsonProperty]
+        public string Name { get; set; }
+
+        [JsonProperty]
+        public string Pattern { get; set; }
+
+        [JsonProperty]
+        public string Message { get; set; }
+
+        public JsonAppPattern()
+        {
+        }
+
+        public JsonAppPattern(AppPattern pattern)
+        {
+            SimpleMapper.Map(pattern, this);
+        }
+
+        public AppPattern ToPattern()
+        {
+            return new AppPattern(Name, Pattern, Message);
+        }
+    }
+}

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

@@ -10,6 +10,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using MongoDB.Bson;
 using MongoDB.Driver;
 using Squidex.Domain.Apps.Entities.Apps.Repositories;
 using Squidex.Domain.Apps.Entities.Apps.State;
@@ -46,6 +47,15 @@ namespace Squidex.Domain.Apps.Entities.MongoDb.Apps
             return appEntity != null ? Guid.Parse(appEntity["_id"].AsString) : Guid.Empty;
         }
 
+        public async Task<IReadOnlyList<Guid>> QueryAppIdsAsync()
+        {
+            var appEntities =
+                await Collection.Find(new BsonDocument()).Only(x => x.Id)
+                    .ToListAsync();
+
+            return appEntities.Select(x => Guid.Parse(x["_id"].AsString)).ToList();
+        }
+
         public async Task<IReadOnlyList<Guid>> QueryUserAppIdsAsync(string userId)
         {
             var appEntities =

src/Squidex.Domain.Apps.Entities/Apps/AppCommandMiddleware.cs

@@ -138,6 +138,36 @@ namespace Squidex.Domain.Apps.Entities.Apps
             });
         }
 
+        protected Task On(AddPattern command, CommandContext context)
+        {
+            return handler.UpdateSyncedAsync<AppDomainObject>(context, a =>
+            {
+                GuardAppPattern.CanAdd(a.State.Patterns, command);
+
+                a.AddPattern(command);
+            });
+        }
+
+        protected Task On(DeletePattern command, CommandContext context)
+        {
+            return handler.UpdateSyncedAsync<AppDomainObject>(context, a =>
+            {
+                GuardAppPattern.CanDelete(a.State.Patterns, command);
+
+                a.DeletePattern(command);
+            });
+        }
+
+        protected async Task On(UpdatePattern command, CommandContext context)
+        {
+            await handler.UpdateSyncedAsync<AppDomainObject>(context, a =>
+            {
+                GuardAppPattern.CanUpdate(a.State.Patterns, command);
+
+                a.UpdatePattern(command);
+            });
+        }
+
         protected Task On(ChangePlan command, CommandContext context)
         {
             return handler.UpdateSyncedAsync<AppDomainObject>(context, async a =>

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

@@ -21,15 +21,29 @@ namespace Squidex.Domain.Apps.Entities.Apps
 {
     public sealed class AppDomainObject : DomainObjectBase<AppState>
     {
+        private readonly InitialPatterns initialPatterns;
+
+        public AppDomainObject(InitialPatterns initialPatterns)
+        {
+            Guard.NotNull(initialPatterns, nameof(initialPatterns));
+
+            this.initialPatterns = initialPatterns;
+        }
+
         public AppDomainObject Create(CreateApp command)
         {
             ThrowIfCreated();
 
             var appId = new NamedId<Guid>(command.AppId, command.Name);
 
-            RaiseEvent(SimpleMapper.Map(command, CreateInitalEvent(appId)));
-            RaiseEvent(SimpleMapper.Map(command, CreateInitialOwner(appId, command)));
-            RaiseEvent(SimpleMapper.Map(command, CreateInitialLanguage(appId)));
+            RaiseEvent(CreateInitalEvent(appId, command.Actor, command.Name));
+            RaiseEvent(CreateInitialOwner(appId, command.Actor));
+            RaiseEvent(CreateInitialLanguage(appId, command.Actor));
+
+            foreach (var pattern in initialPatterns)
+            {
+                RaiseEvent(CreateInitialPattern(appId, command.Actor, pattern.Key, pattern.Value));
+            }
 
             return this;
         }
@@ -123,6 +137,33 @@ namespace Squidex.Domain.Apps.Entities.Apps
             return this;
         }
 
+        public AppDomainObject AddPattern(AddPattern command)
+        {
+            ThrowIfNotCreated();
+
+            RaiseEvent(SimpleMapper.Map(command, new AppPatternAdded()));
+
+            return this;
+        }
+
+        public AppDomainObject DeletePattern(DeletePattern command)
+        {
+            ThrowIfNotCreated();
+
+            RaiseEvent(SimpleMapper.Map(command, new AppPatternDeleted()));
+
+            return this;
+        }
+
+        public AppDomainObject UpdatePattern(UpdatePattern command)
+        {
+            ThrowIfNotCreated();
+
+            RaiseEvent(SimpleMapper.Map(command, new AppPatternUpdated()));
+
+            return this;
+        }
+
         private void RaiseEvent(AppEvent @event)
         {
             if (@event.AppId == null)
@@ -133,19 +174,24 @@ namespace Squidex.Domain.Apps.Entities.Apps
             RaiseEvent(Envelope.Create(@event));
         }
 
-        private static AppCreated CreateInitalEvent(NamedId<Guid> appId)
+        private static AppCreated CreateInitalEvent(NamedId<Guid> appId, RefToken actor, string name)
+        {
+            return new AppCreated { AppId = appId, Actor = actor, Name = name };
+        }
+
+        private static AppPatternAdded CreateInitialPattern(NamedId<Guid> appId, RefToken actor, Guid id, AppPattern p)
         {
-            return new AppCreated { AppId = appId };
+            return new AppPatternAdded { AppId = appId, Actor = actor, PatternId = id, Name = p.Name, Pattern = p.Pattern, Message = p.Message };
         }
 
-        private static AppLanguageAdded CreateInitialLanguage(NamedId<Guid> id)
+        private static AppLanguageAdded CreateInitialLanguage(NamedId<Guid> appId, RefToken actor)
         {
-            return new AppLanguageAdded { AppId = id, Language = Language.EN };
+            return new AppLanguageAdded { AppId = appId, Actor = actor, Language = Language.EN };
         }
 
-        private static AppContributorAssigned CreateInitialOwner(NamedId<Guid> id, SquidexCommand command)
+        private static AppContributorAssigned CreateInitialOwner(NamedId<Guid> appId, RefToken actor)
         {
-            return new AppContributorAssigned { AppId = id, ContributorId = command.Actor.Identifier, Permission = AppContributorPermission.Owner };
+            return new AppContributorAssigned { AppId = appId, Actor = actor, ContributorId = actor.Identifier, Permission = AppContributorPermission.Owner };
         }
 
         private void ThrowIfNotCreated()

src/Squidex.Domain.Apps.Entities/Apps/Commands/AddPattern.cs

@@ -0,0 +1,28 @@
+// ==========================================================================
+//  AddPattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+
+namespace Squidex.Domain.Apps.Entities.Apps.Commands
+{
+    public sealed class AddPattern : AppAggregateCommand
+    {
+        public Guid PatternId { get; set; }
+
+        public string Name { get; set; }
+
+        public string Pattern { get; set; }
+
+        public string Message { get; set; }
+
+        public AddPattern()
+        {
+            PatternId = Guid.NewGuid();
+        }
+    }
+}

src/Squidex.Domain.Apps.Entities/Apps/Commands/CreateApp.cs

@@ -13,10 +13,10 @@ namespace Squidex.Domain.Apps.Entities.Apps.Commands
 {
     public sealed class CreateApp : SquidexCommand, IAggregateCommand
     {
-        public string Name { get; set; }
-
         public Guid AppId { get; set; }
 
+        public string Name { get; set; }
+
         Guid IAggregateCommand.AggregateId
         {
             get { return AppId; }

src/Squidex.Domain.Apps.Entities/Apps/Commands/DeletePattern.cs

@@ -0,0 +1,17 @@
+// ==========================================================================
+//  DeletePattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+
+namespace Squidex.Domain.Apps.Entities.Apps.Commands
+{
+    public sealed class DeletePattern : AppAggregateCommand
+    {
+        public Guid PatternId { get; set; }
+    }
+}

src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdatePattern.cs

@@ -0,0 +1,23 @@
+// ==========================================================================
+//  UpdatePattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+
+namespace Squidex.Domain.Apps.Entities.Apps.Commands
+{
+    public sealed class UpdatePattern : AppAggregateCommand
+    {
+        public Guid PatternId { get; set; }
+
+        public string Name { get; set; }
+
+        public string Pattern { get; set; }
+
+        public string Message { get; set; }
+    }
+}

src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppPattern.cs

@@ -0,0 +1,97 @@
+// ==========================================================================
+//  GuardAppPattern.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+using System;
+using System.Linq;
+using Squidex.Domain.Apps.Core.Apps;
+using Squidex.Domain.Apps.Entities.Apps.Commands;
+using Squidex.Infrastructure;
+
+namespace Squidex.Domain.Apps.Entities.Apps.Guards
+{
+    public static class GuardAppPattern
+    {
+        public static void CanAdd(AppPatterns patterns, AddPattern command)
+        {
+            Guard.NotNull(command, nameof(command));
+
+            Validate.It(() => "Cannot add pattern.", error =>
+            {
+                if (string.IsNullOrWhiteSpace(command.Name))
+                {
+                    error(new ValidationError("Pattern name can not be empty.", nameof(command.Name)));
+                }
+
+                if (patterns.Values.Any(x => x.Name.Equals(command.Name, StringComparison.OrdinalIgnoreCase)))
+                {
+                    error(new ValidationError("Pattern name is already assigned.", nameof(command.Name)));
+                }
+
+                if (string.IsNullOrWhiteSpace(command.Pattern))
+                {
+                    error(new ValidationError("Pattern can not be empty.", nameof(command.Pattern)));
+                }
+                else if (!command.Pattern.IsValidRegex())
+                {
+                    error(new ValidationError("Pattern is not a valid regular expression.", nameof(command.Pattern)));
+                }
+
+                if (patterns.Values.Any(x => x.Pattern == command.Pattern))
+                {
+                    error(new ValidationError("Pattern already exists.", nameof(command.Pattern)));
+                }
+            });
+        }
+
+        public static void CanDelete(AppPatterns patterns, DeletePattern command)
+        {
+            Guard.NotNull(command, nameof(command));
+
+            if (!patterns.ContainsKey(command.PatternId))
+            {
+                throw new DomainObjectNotFoundException(command.PatternId.ToString(), typeof(AppPattern));
+            }
+        }
+
+        public static void CanUpdate(AppPatterns patterns, UpdatePattern command)
+        {
+            Guard.NotNull(command, nameof(command));
+
+            if (!patterns.ContainsKey(command.PatternId))
+            {
+                throw new DomainObjectNotFoundException(command.PatternId.ToString(), typeof(AppPattern));
+            }
+
+            Validate.It(() => "Cannot update pattern.", error =>
+            {
+                if (string.IsNullOrWhiteSpace(command.Name))
+                {
+                    error(new ValidationError("Pattern name can not be empty.", nameof(command.Name)));
+                }
+
+                if (patterns.Any(x => x.Key != command.PatternId && x.Value.Name.Equals(command.Name, StringComparison.OrdinalIgnoreCase)))
+                {
+                    error(new ValidationError("Pattern name is already assigned.", nameof(command.Name)));
+                }
+
+                if (string.IsNullOrWhiteSpace(command.Pattern))
+                {
+                    error(new ValidationError("Pattern can not be empty.", nameof(command.Pattern)));
+                }
+                else if (!command.Pattern.IsValidRegex())
+                {
+                    error(new ValidationError("Pattern is not a valid regular expression.", nameof(command.Pattern)));
+                }
+
+                if (patterns.Any(x => x.Key != command.PatternId && x.Value.Pattern == command.Pattern))
+                {
+                    error(new ValidationError("Pattern already exists.", nameof(command.Pattern)));
+                }
+            });
+        }
+    }
+}

src/Squidex.Domain.Apps.Entities/Apps/IAppEntity.cs

@@ -18,6 +18,8 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
         AppClients Clients { get; }
 
+        AppPatterns Patterns { get; }
+
         AppContributors Contributors { get; }
 
         LanguagesConfig LanguagesConfig { get; }

src/Squidex.Domain.Apps.Entities/Apps/InitialPatterns.cs

@@ -0,0 +1,26 @@
+// ==========================================================================
+//  InitialPatterns.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.Collections.Generic;
+using Squidex.Domain.Apps.Core.Apps;
+
+namespace Squidex.Domain.Apps.Entities.Apps
+{
+    public sealed class InitialPatterns : Dictionary<Guid, AppPattern>
+    {
+        public InitialPatterns()
+        {
+        }
+
+        public InitialPatterns(Dictionary<Guid, AppPattern> patterns)
+            : base(patterns)
+        {
+        }
+    }
+}

src/Squidex.Domain.Apps.Entities/Apps/Repositories/IAppRepository.cs

@@ -16,6 +16,8 @@ namespace Squidex.Domain.Apps.Entities.Apps.Repositories
     {
         Task<Guid> FindAppIdByNameAsync(string name);
 
+        Task<IReadOnlyList<Guid>> QueryAppIdsAsync();
+
         Task<IReadOnlyList<Guid>> QueryUserAppIdsAsync(string userId);
     }
 }

src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs

@@ -31,6 +31,9 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
         [JsonProperty]
         public AppClients Clients { get; set; } = AppClients.Empty;
 
+        [JsonProperty]
+        public AppPatterns Patterns { get; set; } = AppPatterns.Empty;
+
         [JsonProperty]
         public AppContributors Contributors { get; set; } = AppContributors.Empty;
 
@@ -77,6 +80,21 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
             Clients = Clients.Revoke(@event.Id);
         }
 
+        protected void On(AppPatternAdded @event)
+        {
+            Patterns = Patterns.Add(@event.PatternId, @event.Name, @event.Pattern, @event.Message);
+        }
+
+        protected void On(AppPatternDeleted @event)
+        {
+            Patterns = Patterns.Remove(@event.PatternId);
+        }
+
+        protected void On(AppPatternUpdated @event)
+        {
+            Patterns = Patterns.Update(@event.PatternId, @event.Name, @event.Pattern, @event.Message);
+        }
+
         protected void On(AppLanguageAdded @event)
         {
             LanguagesConfig = LanguagesConfig.Set(new LanguageConfig(@event.Language));

src/Squidex.Domain.Apps.Events/Apps/AppPatternAdded.cs

@@ -0,0 +1,25 @@
+// ==========================================================================
+//  AppPatternAdded.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using Squidex.Infrastructure.EventSourcing;
+
+namespace Squidex.Domain.Apps.Events.Apps
+{
+    [EventType(nameof(AppPatternAdded))]
+    public sealed class AppPatternAdded : AppEvent
+    {
+        public Guid PatternId { get; set; }
+
+        public string Name { get; set; }
+
+        public string Pattern { get; set; }
+
+        public string Message { get; set; }
+    }
+}

src/Squidex.Domain.Apps.Events/Apps/AppPatternDeleted.cs

@@ -0,0 +1,21 @@
+// ==========================================================================
+//  AppPatternDeleted.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using Squidex.Infrastructure.EventSourcing;
+
+namespace Squidex.Domain.Apps.Events.Apps
+{
+    [EventType(nameof(AppPatternDeleted))]
+    public sealed class AppPatternDeleted : AppEvent
+    {
+        public Guid PatternId { get; set; }
+
+        public string Name { get; set; }
+    }
+}

src/Squidex.Domain.Apps.Events/Apps/AppPatternUpdated.cs

@@ -0,0 +1,25 @@
+// ==========================================================================
+//  AppPatternUpdated.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using Squidex.Infrastructure.EventSourcing;
+
+namespace Squidex.Domain.Apps.Events.Apps
+{
+    [EventType(nameof(AppPatternUpdated))]
+    public sealed class AppPatternUpdated : AppEvent
+    {
+        public Guid PatternId { get; set; }
+
+        public string Name { get; set; }
+
+        public string Pattern { get; set; }
+
+        public string Message { get; set; }
+    }
+}

src/Squidex.Infrastructure.MongoDb/Migrations/MongoMigrationStatus.cs

@@ -40,7 +40,7 @@ namespace Squidex.Infrastructure.Migrations
                 await Collection.FindOneAndUpdateAsync<MongoMigrationEntity>(x => x.Id == DefaultId,
                     Update
                         .Set(x => x.IsLocked, true)
-                        .Set(x => x.Version, 0),
+                        .SetOnInsert(x => x.Version, 0),
                     UpsertFind);
 
             return entity == null || entity.IsLocked == false;

src/Squidex/Areas/Api/Controllers/Apps/AppPatternsController.cs

@@ -0,0 +1,130 @@
+// ==========================================================================
+//  AppPatternsController.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using NSwag.Annotations;
+using Squidex.Areas.Api.Controllers.Apps.Models;
+using Squidex.Domain.Apps.Entities.Apps.Commands;
+using Squidex.Infrastructure.Commands;
+using Squidex.Infrastructure.Reflection;
+using Squidex.Pipeline;
+
+namespace Squidex.Areas.Api.Controllers.Apps
+{
+    /// <summary>
+    /// Manages and configures app patterns.
+    /// </summary>
+    [ApiAuthorize]
+    [MustBeAppDeveloper]
+    [ApiExceptionFilter]
+    [AppApi]
+    [SwaggerTag(nameof(Apps))]
+    public sealed class AppPatternsController : ApiController
+    {
+        public AppPatternsController(ICommandBus commandBus)
+            : base(commandBus)
+        {
+        }
+
+        /// <summary>
+        /// Get app patterns.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <returns>
+        /// 200 => Patterns returned.
+        /// 404 => App not found.
+        /// </returns>
+        /// <remarks>
+        /// Gets all configured regex patterns for the app with the specified name.
+        /// </remarks>
+        [HttpGet]
+        [Route("apps/{app}/patterns/")]
+        [ProducesResponseType(typeof(AppPatternDto[]), 200)]
+        [ApiCosts(0)]
+        public IActionResult GetPatterns(string app)
+        {
+            var response =
+                App.Patterns.Select(x => SimpleMapper.Map(x.Value, new AppPatternDto { PatternId = x.Key }))
+                    .OrderBy(x => x.Name).ToList();
+
+            return Ok(response);
+        }
+
+        /// <summary>
+        /// Create a new app patterm.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="request">Pattern to be added to the app.</param>
+        /// <returns>
+        /// 201 => Pattern generated.
+        /// 404 => App not found.
+        /// </returns>
+        [HttpPost]
+        [Route("apps/{app}/patterns/")]
+        [ProducesResponseType(typeof(AppPatternDto), 201)]
+        [ApiCosts(1)]
+        public async Task<IActionResult> PostPattern(string app, [FromBody] UpdatePatternDto request)
+        {
+            var command = SimpleMapper.Map(request, new AddPattern());
+
+            await CommandBus.PublishAsync(command);
+
+            var response = SimpleMapper.Map(request, new AppPatternDto { PatternId = command.PatternId });
+
+            return CreatedAtAction(nameof(GetPatterns), new { app }, request);
+        }
+
+        /// <summary>
+        /// Update an existing app patterm.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="id">The id of the pattern to be updated.</param>
+        /// <param name="request">Pattern to be updated for the app.</param>
+        /// <returns>
+        /// 204 => Pattern updated.
+        /// 404 => App not found or pattern not found.
+        /// </returns>
+        [HttpPut]
+        [Route("apps/{app}/patterns/{id}/")]
+        [ProducesResponseType(typeof(AppPatternDto), 201)]
+        [ApiCosts(1)]
+        public async Task<IActionResult> UpdatePattern(string app, Guid id, [FromBody] UpdatePatternDto request)
+        {
+            var command = SimpleMapper.Map(request, new UpdatePattern { PatternId = id });
+
+            await CommandBus.PublishAsync(command);
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Revoke an app client
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="id">The id of the pattern to be deleted.</param>
+        /// <returns>
+        /// 204 => Pattern removed.
+        /// 404 => App or pattern not found.
+        /// </returns>
+        /// <remarks>
+        /// Schemas using this pattern will still function using the same Regular Expression
+        /// </remarks>
+        [HttpDelete]
+        [Route("apps/{app}/patterns/{id}/")]
+        [ApiCosts(1)]
+        public async Task<IActionResult> DeletePattern(string app, Guid id)
+        {
+            await CommandBus.PublishAsync(new DeletePattern { PatternId = id });
+
+            return NoContent();
+        }
+    }
+}

src/Squidex/Areas/Api/Controllers/Apps/Models/AppPatternDto.cs

@@ -0,0 +1,38 @@
+// ==========================================================================
+//  AppPatternDto.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace Squidex.Areas.Api.Controllers.Apps.Models
+{
+    public sealed class AppPatternDto
+    {
+        /// <summary>
+        /// Identifier for Pattern
+        /// </summary>
+        public Guid PatternId { get; set; }
+
+        /// <summary>
+        /// The name of the suggestion.
+        /// </summary>
+        [Required]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// The regex pattern.
+        /// </summary>
+        [Required]
+        public string Pattern { get; set; }
+
+        /// <summary>
+        /// The regex message.
+        /// </summary>
+        public string Message { get; set; }
+    }
+}

src/Squidex/Areas/Api/Controllers/UI/Models/UIRegexSuggestionDto.cs → src/Squidex/Areas/Api/Controllers/Apps/Models/UpdatePatternDto.cs

@@ -1,5 +1,5 @@
 // ==========================================================================
-//  UIRegexSuggestionDto.cs
+//  AddPatternDto.cs
 //  Squidex Headless CMS
 // ==========================================================================
 //  Copyright (c) Squidex Group
@@ -8,9 +8,9 @@
 
 using System.ComponentModel.DataAnnotations;
 
-namespace Squidex.Areas.Api.Controllers.UI.Models
+namespace Squidex.Areas.Api.Controllers.Apps.Models
 {
-    public sealed class UIRegexSuggestionDto
+    public class UpdatePatternDto
     {
         /// <summary>
         /// The name of the suggestion.
@@ -23,5 +23,10 @@ namespace Squidex.Areas.Api.Controllers.UI.Models
         /// </summary>
         [Required]
         public string Pattern { get; set; }
+
+        /// <summary>
+        /// The regex message.
+        /// </summary>
+        public string Message { get; set; }
     }
 }

src/Squidex/Areas/Api/Controllers/UI/Models/UISettingsDto.cs

@@ -6,19 +6,12 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 
 namespace Squidex.Areas.Api.Controllers.UI.Models
 {
     public sealed class UISettingsDto
     {
-        /// <summary>
-        /// The regex suggestions.
-        /// </summary>
-        [Required]
-        public List<UIRegexSuggestionDto> RegexSuggestions { get; set; }
-
         /// <summary>
         /// The type of the map control.
         /// </summary>

src/Squidex/Areas/Api/Controllers/UI/UIController.cs

@@ -6,8 +6,6 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System.Collections.Generic;
-using System.Linq;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
 using NSwag.Annotations;
@@ -44,13 +42,6 @@ namespace Squidex.Areas.Api.Controllers.UI
         {
             var dto = new UISettingsDto
             {
-                RegexSuggestions =
-                    uiOptions.RegexSuggestions?
-                        .Where(x =>
-                            !string.IsNullOrWhiteSpace(x.Key) &&
-                            !string.IsNullOrWhiteSpace(x.Value))
-                        .Select(x => new UIRegexSuggestionDto { Name = x.Key, Pattern = x.Value }).ToList()
-                    ?? new List<UIRegexSuggestionDto>(),
                 MapType = uiOptions.Map?.Type ?? "OSM",
                 MapKey = uiOptions.Map?.GoogleMaps?.Key
             };

src/Squidex/Config/Domain/SerializationServices.cs

@@ -29,7 +29,7 @@ namespace Squidex.Config.Domain
     {
         private static readonly TypeNameRegistry TypeNameRegistry =
             new TypeNameRegistry()
-                .MapUnmapped(typeof(Migration01).Assembly)
+                .MapUnmapped(typeof(Migration01_FromCqrs).Assembly)
                 .MapUnmapped(typeof(SquidexCoreModel).Assembly)
                 .MapUnmapped(typeof(SquidexEvents).Assembly)
                 .MapUnmapped(typeof(SquidexInfrastructure).Assembly);
@@ -43,6 +43,7 @@ namespace Squidex.Config.Domain
             settings.ContractResolver = new ConverterContractResolver(
                 new AppClientsConverter(),
                 new AppContributorsConverter(),
+                new AppPatternsConverter(),
                 new ClaimsPrincipalConverter(),
                 new InstantConverter(),
                 new LanguageConverter(),

src/Squidex/Config/Domain/WriteServices.cs

@@ -6,8 +6,11 @@
 //  All rights reserved.
 // ==========================================================================
 
+using System;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Migrate_01;
+using Squidex.Domain.Apps.Core.Apps;
 using Squidex.Domain.Apps.Core.Scripting;
 using Squidex.Domain.Apps.Entities.Apps;
 using Squidex.Domain.Apps.Entities.Assets;
@@ -61,7 +64,10 @@ namespace Squidex.Config.Domain
             services.AddSingletonAs<RuleCommandMiddleware>()
                 .As<ICommandMiddleware>();
 
-            services.AddTransientAs<Migration01>()
+            services.AddTransientAs<Migration01_FromCqrs>()
+                .As<IMigration>();
+
+            services.AddTransientAs<Migration02_AddPatterns>()
                 .As<IMigration>();
 
             services.AddTransientAs<AppDomainObject>()
@@ -78,6 +84,24 @@ namespace Squidex.Config.Domain
 
             services.AddTransientAs<SchemaDomainObject>()
                 .AsSelf();
+
+            services.AddSingleton<InitialPatterns>(c =>
+            {
+                var config = c.GetRequiredService<IOptions<MyUIOptions>>();
+
+                var result = new InitialPatterns();
+
+                foreach (var pattern in config.Value.RegexSuggestions)
+                {
+                    if (!string.IsNullOrWhiteSpace(pattern.Key) &&
+                        !string.IsNullOrWhiteSpace(pattern.Value))
+                    {
+                        result[Guid.NewGuid()] = new AppPattern(pattern.Key, pattern.Value);
+                    }
+                }
+
+                return result;
+            });
         }
     }
 }

src/Squidex/app/features/schemas/pages/schema/field.component.html

@@ -139,7 +139,7 @@
                         <sqx-number-validation [editForm]="editForm" [properties]="field.properties"></sqx-number-validation>
                     </div>
                     <div *ngSwitchCase="'String'">
-                        <sqx-string-validation [editForm]="editForm" [properties]="field.properties"></sqx-string-validation>
+                        <sqx-string-validation [editForm]="editForm" [properties]="field.properties" [regexSuggestions]="regexSuggestions"></sqx-string-validation>
                     </div>
                     <div *ngSwitchCase="'Boolean'">
                         <sqx-boolean-validation [editForm]="editForm" [properties]="field.properties"></sqx-boolean-validation>

src/Squidex/app/features/schemas/pages/schema/field.component.ts

@@ -9,6 +9,7 @@ import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
 import { FormBuilder, Validators } from '@angular/forms';
 
 import {
+    AppPatternDto,
     createProperties,
     fadeAnimation,
     FieldDto,
@@ -31,6 +32,9 @@ export class FieldComponent implements OnInit {
     @Input()
     public schemas: SchemaDto[];
 
+    @Input()
+    public regexSuggestions: AppPatternDto[] = [];
+
     @Output()
     public locking = new EventEmitter();
 

src/Squidex/app/features/schemas/pages/schema/schema-page.component.html

@@ -62,6 +62,7 @@
         <div class="panel-content panel-content-scroll" dnd-sortable-container [sortableData]="schema.fields">
             <div *ngFor="let field of schema.fields; let i = index" dnd-sortable [sortableIndex]="i" (sqxSorted)="sortFields($event)">
                 <sqx-field [field]="field" [schemas]="schemas?.values"
+                    [regexSuggestions]="regexSuggestions"
                     (disabling)="disableField(field)"
                     (deleting)="deleteField(field)"
                     (enabling)="enableField(field)"

src/Squidex/app/features/schemas/pages/schema/schema-page.component.ts

@@ -13,6 +13,8 @@ import { Subscription } from 'rxjs';
 import {
     AddFieldDto,
     AppContext,
+    AppPatternDto,
+    AppPatternsService,
     createProperties,
     fadeAnimation,
     FieldDto,
@@ -57,6 +59,8 @@ export class SchemaPageComponent implements OnDestroy, OnInit {
     public schema: SchemaDetailsDto;
     public schemas: ImmutableArray<SchemaDto>;
 
+    public regexSuggestions: AppPatternDto[] = [];
+
     public exportSchemaDialog = new ModalView();
 
     public configureScriptsDialog = new ModalView();
@@ -86,7 +90,8 @@ export class SchemaPageComponent implements OnDestroy, OnInit {
     constructor(public readonly ctx: AppContext,
         private readonly formBuilder: FormBuilder,
         private readonly router: Router,
-        private readonly schemasService: SchemasService
+        private readonly schemasService: SchemasService,
+        private readonly appPatternsService: AppPatternsService
     ) {
     }
 
@@ -114,6 +119,11 @@ export class SchemaPageComponent implements OnDestroy, OnInit {
     }
 
     private load() {
+        this.appPatternsService.getPatterns(this.ctx.appName)
+            .subscribe(dtos => {
+                this.regexSuggestions = dtos.patterns;
+            });
+
         this.schemasService.getSchemas(this.ctx.appName)
             .subscribe(dtos => {
                 this.schemas = ImmutableArray.of(dtos);

src/Squidex/app/features/schemas/pages/schema/types/string-validation.component.html

@@ -33,14 +33,17 @@
             <div *ngIf="regexSuggestions.length > 0 && (regexSuggestionsModal.isOpen | async) && (showPatternSuggestions | async)" [sqxModalTarget]="patternInput" class="control-dropdown">
                 <h4>Suggestions</h4>
 
-                <div *ngFor="let suggestion of regexSuggestions" class="control-dropdown-item control-dropdown-item-selectable" (mousedown)="setPattern(suggestion.pattern)">
+                <div *ngFor="let suggestion of regexSuggestions" class="control-dropdown-item control-dropdown-item-selectable" (mousedown)="setPattern(suggestion)">
                     <div class="truncate">{{suggestion.name}}</div>
                     <div class="truncate text-muted">{{suggestion.pattern}}</div>
                 </div>
             </div>
         </div>
+        <small class="col col-3" style="align-self: center;">
+            {{patternName}}
+        </small>
     </div>
-    <div class="form-group row" *ngIf="showPatternMessage | async">
+    <div class="form-group row" *ngIf="showPatternMessage">
         <label class="col col-3 col-form-label" for="field-pattern-message">Pattern Message</label>
 
         <div class="col col-6">

src/Squidex/app/features/schemas/pages/schema/types/string-validation.component.ts

@@ -10,10 +10,9 @@ import { FormControl, FormGroup } from '@angular/forms';
 import { Observable, Subscription } from 'rxjs';
 
 import {
+    AppPatternDto,
     ModalView,
-    StringFieldPropertiesDto,
-    UIRegexSuggestionDto,
-    UIService
+    StringFieldPropertiesDto
 } from 'shared';
 
 @Component({
@@ -23,7 +22,6 @@ import {
 })
 export class StringValidationComponent implements OnDestroy, OnInit {
     private patternSubscription: Subscription;
-    private uiSettingsSubscription: Subscription;
 
     @Input()
     public editForm: FormGroup;
@@ -31,22 +29,18 @@ export class StringValidationComponent implements OnDestroy, OnInit {
     @Input()
     public properties: StringFieldPropertiesDto;
 
+    @Input()
+    public regexSuggestions: AppPatternDto[] = [];
+
     public showDefaultValue: Observable<boolean>;
-    public showPatternMessage: Observable<boolean>;
+    public showPatternMessage: boolean;
     public showPatternSuggestions: Observable<boolean>;
-
-    public regexSuggestions: UIRegexSuggestionDto[] = [];
+    public patternName: string;
 
     public regexSuggestionsModal = new ModalView(false, false);
 
-    constructor(
-        private readonly uiService: UIService
-    ) {
-    }
-
     public ngOnDestroy() {
         this.patternSubscription.unsubscribe();
-        this.uiSettingsSubscription.unsubscribe();
     }
 
     public ngOnInit() {
@@ -71,31 +65,41 @@ export class StringValidationComponent implements OnDestroy, OnInit {
                 .map(x => !x);
 
         this.showPatternMessage =
-            this.editForm.controls['pattern'].valueChanges
-                .startWith('')
-                .map(x => x && x.trim().length > 0);
+            this.editForm.controls['pattern'].value && this.editForm.controls['pattern'].value.trim().length > 0;
 
         this.showPatternSuggestions =
             this.editForm.controls['pattern'].valueChanges
                 .startWith('')
                 .map(x => !x || x.trim().length === 0);
 
-        this.uiSettingsSubscription =
-            this.uiService.getSettings()
-                .subscribe(settings => {
-                    this.regexSuggestions = settings.regexSuggestions;
-                });
-
         this.patternSubscription =
             this.editForm.controls['pattern'].valueChanges
                 .subscribe((value: string) => {
                     if (!value || value.length === 0) {
                         this.editForm.controls['patternMessage'].setValue(undefined);
                     }
+                    this.setPatternName();
                 });
+
+        this.setPatternName();
     }
 
-    public setPattern(pattern: string) {
-        this.editForm.controls['pattern'].setValue(pattern);
+    public setPattern(pattern: AppPatternDto) {
+        this.patternName = pattern.name;
+        this.editForm.controls['pattern'].setValue(pattern.pattern);
+        this.editForm.controls['patternMessage'].setValue(pattern.message);
+        this.showPatternMessage = true;
+    }
+
+    private setPatternName() {
+        const matchingPattern = this.regexSuggestions.find(x => x.pattern === this.editForm.controls['pattern'].value);
+
+        if (matchingPattern) {
+            this.patternName = matchingPattern.name;
+        } else if (this.editForm.controls['pattern'].value && this.editForm.controls['pattern'].value.trim() !== '') {
+            this.patternName = 'Advanced';
+        } else {
+            this.patternName = undefined;
+        }
     }
 }

src/Squidex/app/features/settings/declarations.ts

@@ -10,6 +10,8 @@ export * from './pages/clients/clients-page.component';
 export * from './pages/contributors/contributors-page.component';
 export * from './pages/languages/language.component';
 export * from './pages/languages/languages-page.component';
+export * from './pages/patterns/pattern.component';
+export * from './pages/patterns/patterns-page.component';
 export * from './pages/plans/plans-page.component';
 
 export * from './settings-area.component';

src/Squidex/app/features/settings/module.ts

@@ -22,6 +22,8 @@ import {
     ContributorsPageComponent,
     LanguageComponent,
     LanguagesPageComponent,
+    PatternComponent,
+    PatternsPageComponent,
     PlansPageComponent,
     SettingsAreaComponent
 } from './declarations';
@@ -97,6 +99,26 @@ const routes: Routes = [
                         }
                     }
                 ]
+            },
+            {
+                path: 'patterns',
+                component: PatternsPageComponent,
+                children: [
+                    {
+                        path: 'history',
+                        component: HistoryComponent,
+                        data: {
+                            channel: 'settings.patterns'
+                        }
+                    },
+                    {
+                        path: 'help',
+                        component: HelpComponent,
+                        data: {
+                            helpPage: '05-integrated/patterns'
+                        }
+                    }
+                ]
             }
         ]
     }
@@ -115,6 +137,8 @@ const routes: Routes = [
         ContributorsPageComponent,
         LanguageComponent,
         LanguagesPageComponent,
+        PatternComponent,
+        PatternsPageComponent,
         PlansPageComponent,
         SettingsAreaComponent
     ]

src/Squidex/app/features/settings/pages/languages/languages-page.component.ts

@@ -82,7 +82,7 @@ export class LanguagesPageComponent implements OnInit {
     }
 
     public updateLanguage(language: AppLanguageDto) {
-        this.appLanguagesService.updateLanguage(this.ctx.appName, language.iso2Code, language, this.appLanguages.version)
+        this.appLanguagesService.putLanguage(this.ctx.appName, language.iso2Code, language, this.appLanguages.version)
             .subscribe(dto => {
                 this.updateLanguages(this.appLanguages.updateLanguage(language, dto.version));
             }, error => {

src/Squidex/app/features/settings/pages/patterns/pattern.component.html

@@ -0,0 +1,45 @@
+<div class="table-items-row" [class.table-items-footer]="!pattern">
+    <form [formGroup]="editForm" (ngSubmit)="save()" class="row no-gutters">
+        <div class="col col-name">
+            <sqx-control-errors for="name" [submitted]="editFormSubmitted"></sqx-control-errors>
+
+            <input type="text" class="form-control" id="pattern-name" maxlength="100" formControlName="name" placeholder="Name" />
+            
+        </div>
+
+        <div class="col pl-2 pr-2">
+            <sqx-control-errors for="pattern" [submitted]="editFormSubmitted"></sqx-control-errors>
+
+            <input type="text" class="form-control" id="pattern-pattern" maxlength="1000" formControlName="pattern" placeholder="Pattern" />
+        </div>
+
+        <div class="col col-message">
+            <sqx-control-errors for="message" [submitted]="editFormSubmitted"></sqx-control-errors>
+
+            <input type="text" class="form-control" id="pattern-message" maxlength="1000" formControlName="message" placeholder="Message" />
+        </div>
+
+        <div class="col col-auto pl-2 col-options" *ngIf="pattern">
+            <button type="submit" class="btn btn-primary" [class.disabled]="!editForm.dirty">
+                <i class="icon-checkmark"></i>
+            </button>
+
+            <button type="button" class="btn btn-link btn-danger"
+                (sqxConfirmClick)="removing.emit(pattern)"
+                confirmTitle="Remove pattern" 
+                confirmText="Do you really want to remove this pattern?">
+                <i class="icon-bin2"></i>
+            </button>
+        </div>
+        
+        <div class="col col-auto pl-2 col-options" *ngIf="!pattern">
+            <button type="submit" class="btn btn-success">
+                <i class="icon-add"></i>
+            </button>
+
+            <button type="reset" class="btn btn-link btn-decent" (click)="cancel()">
+                <i class="icon-close"></i>
+            </button>
+        </div>
+    </form>
+</div>

src/Squidex/app/features/settings/pages/patterns/pattern.component.scss

@@ -0,0 +1,13 @@
+@import '_vars';
+@import '_mixins';
+
+.col-options {
+    min-width: 7.5rem;
+    max-width: 7.5rem;
+}
+
+.col-name,
+.col-message {
+    min-width: 10rem;
+    max-width: 10rem;
+}

src/Squidex/app/features/settings/pages/patterns/pattern.component.ts

@@ -0,0 +1,99 @@
+/*
+ * Squidex Headless CMS
+ *
+ * @license
+ * Copyright (c) Sebastian Stehle. All rights reserved
+ */
+
+import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
+import { FormBuilder, Validators } from '@angular/forms';
+
+import {
+    AppPatternDto,
+    fadeAnimation,
+    ValidatorsEx,
+    UpdatePatternDto
+} from 'shared';
+
+@Component({
+    selector: 'sqx-pattern',
+    styleUrls: ['./pattern.component.scss'],
+    templateUrl: './pattern.component.html',
+    animations: [
+        fadeAnimation
+    ]
+})
+export class PatternComponent implements OnInit {
+    @Input()
+    public isNew = false;
+
+    @Input()
+    public pattern: AppPatternDto;
+
+    @Output()
+    public removing = new EventEmitter<any>();
+
+    @Output()
+    public updating = new EventEmitter<UpdatePatternDto>();
+
+    public editFormSubmitted = false;
+    public editForm =
+        this.formBuilder.group({
+            name: [
+                '',
+                [
+                    Validators.required,
+                    Validators.maxLength(100),
+                    ValidatorsEx.pattern('[A-z0-9]+[A-z0-9\- ]*[A-z0-9]', 'Name can only contain letters, numbers, dashes and spaces.')
+                ]
+            ],
+            pattern: [
+                '',
+                [
+                    Validators.required
+                ]
+            ],
+            message: [
+                '',
+                [
+                    Validators.maxLength(1000)
+                ]
+            ]
+        });
+
+    constructor(
+        private readonly formBuilder: FormBuilder
+    ) {
+    }
+
+    public ngOnInit() {
+        const pattern = this.pattern;
+
+        if (pattern) {
+            this.editForm.setValue({ name: pattern.name, pattern: pattern.pattern, message: pattern.message || '' });
+        }
+    }
+
+    public cancel() {
+        this.editFormSubmitted = false;
+        this.editForm.reset();
+    }
+
+    public save() {
+        this.editFormSubmitted = true;
+
+        if (this.editForm.valid) {
+            const requestDto = new UpdatePatternDto(
+                this.editForm.controls['name'].value,
+                this.editForm.controls['pattern'].value,
+                this.editForm.controls['message'].value);
+
+            this.updating.emit(requestDto);
+
+            if (!this.pattern) {
+                this.cancel();
+            }
+        }
+    }
+}
+

src/Squidex/app/features/settings/pages/patterns/patterns-page.component.html

@@ -0,0 +1,41 @@
+<sqx-title message="{app} | Patterns | Settings" parameter1="app" [value1]="ctx.appName"></sqx-title>
+
+<sqx-panel desiredWidth="60rem">
+    <div class="panel-header">
+        <div class="panel-title-row">
+            <h3 class="panel-title">Patterns</h3>
+        </div>
+
+        <a class="panel-close" sqxParentLink>
+            <i class="icon-close"></i>
+        </a>
+    </div>
+
+    <div class="panel-main">
+        <div class="panel-content panel-content-scroll">
+            <div *ngIf="appPatterns">
+                <div *ngFor="let pattern of appPatterns.patterns">
+                    <sqx-pattern [pattern]="pattern"
+                        (removing)="removePattern(pattern)"
+                        (updating)="updatePattern(pattern, $event)">
+                    </sqx-pattern>
+                </div>
+                <sqx-pattern [isNew]="true"
+                    (updating)="addPattern($event)">
+                </sqx-pattern>
+            </div>
+        </div>
+
+        
+        <div class="panel-sidebar">
+            <a class="panel-link" routerLink="history" routerLinkActive="active">
+                <i class="icon-time"></i>
+            </a>
+            <a class="panel-link" routerLink="help" routerLinkActive="active">
+                <i class="icon-help"></i>
+            </a>
+        </div>
+    </div>
+</sqx-panel>
+
+<router-outlet></router-outlet>

src/Squidex/app/features/settings/pages/patterns/patterns-page.component.scss

@@ -0,0 +1,2 @@
+@import '_vars';
+@import '_mixins';

src/Squidex/app/features/settings/pages/patterns/patterns-page.component.ts

@@ -0,0 +1,87 @@
+/*
+ * Squidex Headless CMS
+ *
+ * @license
+ * Copyright (c) Sebastian Stehle. All rights reserved
+ */
+
+import { Component, OnInit } from '@angular/core';
+
+import {
+    AppContext,
+    AppPatternDto,
+    AppPatternsDto,
+    AppPatternsService,
+    HistoryChannelUpdated,
+    UpdatePatternDto
+} from 'shared';
+
+@Component({
+    selector: 'sqx-patterns-page',
+    styleUrls: ['./patterns-page.component.scss'],
+    templateUrl: './patterns-page.component.html',
+    providers: [
+        AppContext
+    ]
+})
+export class PatternsPageComponent implements OnInit {
+    public appPatterns: AppPatternsDto;
+
+    constructor(public readonly ctx: AppContext,
+        private readonly appPatternsService: AppPatternsService
+    ) {
+    }
+
+    public ngOnInit() {
+        this.load();
+    }
+
+    public load() {
+        this.appPatternsService.getPatterns(this.ctx.appName).retry(2)
+            .subscribe(dtos => {
+                this.updatePatterns(dtos);
+            }, error => {
+                this.ctx.notifyError(error);
+            });
+    }
+
+    public addPattern(pattern: AppPatternDto) {
+        const requestDto = new UpdatePatternDto(pattern.name, pattern.pattern, pattern.message);
+
+        this.appPatternsService.postPattern(this.ctx.appName, requestDto, this.appPatterns.version)
+            .subscribe(dto => {
+                this.updatePatterns(this.appPatterns.addPattern(dto.payload, dto.version));
+            }, error => {
+                this.ctx.notifyError(error);
+            });
+    }
+
+    public updatePattern(pattern: AppPatternDto, update: UpdatePatternDto) {
+        this.appPatternsService.putPattern(this.ctx.appName, pattern.patternId, update, this.appPatterns.version)
+            .subscribe(dto => {
+                this.updatePatterns(this.appPatterns.updatePattern(pattern.update(update), dto.version));
+            }, error => {
+                this.ctx.notifyError(error);
+            });
+    }
+
+    public removePattern(pattern: AppPatternDto) {
+        this.appPatternsService.deletePattern(this.ctx.appName, pattern.patternId, this.appPatterns.version)
+            .subscribe(dto => {
+                this.updatePatterns(this.appPatterns.deletePattern(pattern, dto.version));
+            }, error => {
+                this.ctx.notifyError(error);
+            });
+    }
+
+    private updatePatterns(patterns: AppPatternsDto) {
+        this.appPatterns =
+            new AppPatternsDto(
+                patterns.patterns.sort((a, b) => {
+                    return a.name.localeCompare(b.name);
+                }),
+                patterns.version);
+
+        this.ctx.bus.emit(new HistoryChannelUpdated());
+    }
+}

src/Squidex/app/features/settings/settings-area.component.html

@@ -32,6 +32,12 @@
                         <i class="icon-angle-right"></i>
                     </a>
                 </li>
+                <li class="nav-item">
+                    <a class="nav-link" routerLink="patterns" routerLinkActive="active">
+                        Patterns
+                        <i class="icon-angle-right"></i>
+                    </a>
+                </li>
                 <li class="nav-item" *ngIf="ctx.app.permission === 'Owner'">
                     <a class="nav-link" routerLink="plans" routerLinkActive="active">
                         Update Plan

src/Squidex/app/shared/declarations-base.ts

@@ -20,6 +20,7 @@ export * from './interceptors/auth.interceptor';
 export * from './services/app-contributors.service';
 export * from './services/app-clients.service';
 export * from './services/app-languages.service';
+export * from './services/app-patterns.service';
 export * from './services/apps-store.service';
 export * from './services/apps.service';
 export * from './services/assets.service';

src/Squidex/app/shared/module.ts

@@ -17,6 +17,7 @@ import {
     AppContributorsService,
     AppLanguagesService,
     AppMustExistGuard,
+    AppPatternsService,
     AppsStoreService,
     AppsService,
     AssetComponent,
@@ -118,6 +119,7 @@ export class SqxSharedModule {
                 AppContributorsService,
                 AppLanguagesService,
                 AppMustExistGuard,
+                AppPatternsService,
                 AppsService,
                 AppsStoreService,
                 AssetsService,

src/Squidex/app/shared/services/app-languages.service.spec.ts

@@ -172,7 +172,7 @@ describe('AppLanguagesService', () => {
 
         const dto = new UpdateAppLanguageDto(true, true, []);
 
-        appLanguagesService.updateLanguage('my-app', 'de', dto, version).subscribe();
+        appLanguagesService.putLanguage('my-app', 'de', dto, version).subscribe();
 
         const req = httpMock.expectOne('http://service/p/api/apps/my-app/languages/de');
 

src/Squidex/app/shared/services/app-languages.service.ts

@@ -141,7 +141,7 @@ export class AppLanguagesService {
                 .pretifyError('Failed to add language. Please reload.');
     }
 
-    public updateLanguage(appName: string, languageCode: string, dto: UpdateAppLanguageDto, version: Version): Observable<Versioned<any>> {
+    public putLanguage(appName: string, languageCode: string, dto: UpdateAppLanguageDto, version: Version): Observable<Versioned<any>> {
         const url = this.apiUrl.buildUrl(`api/apps/${appName}/languages/${languageCode}`);
 
         return HTTP.putVersioned(this.http, url, dto, version)

src/Squidex/app/shared/services/app-patterns.service.spec.ts

@@ -0,0 +1,174 @@
+/*
+ * Squidex Headless CMS
+ *
+ * @license
+ * Copyright (c) Sebastian Stehle. All rights reserved
+ */
+
+import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
+import { inject, TestBed } from '@angular/core/testing';
+
+import {
+    ApiUrlConfig,
+    AppPatternDto,
+    AppPatternsDto,
+    AppPatternsService,
+    UpdatePatternDto,
+    Version
+} from './../';
+
+describe('ApppatternsDto', () => {
+    const pattern1 = new AppPatternDto('1', 'Any', '.*', 'Message1');
+    const pattern2 = new AppPatternDto('2', 'Number', '[0-9]', 'Message2');
+    const pattern2_new = new AppPatternDto('2', 'Numbers', '[0-9]*', 'Message2_1');
+    const version = new Version('1');
+    const newVersion = new Version('2');
+
+    it('should update patterns when adding pattern', () => {
+        const patterns_1 = new AppPatternsDto([pattern1], version);
+        const patterns_2 = patterns_1.addPattern(pattern2, newVersion);
+
+        expect(patterns_2.patterns).toEqual([pattern1, pattern2]);
+        expect(patterns_2.version).toEqual(newVersion);
+    });
+
+    it('should update patterns when removing pattern', () => {
+        const patterns_1 = new AppPatternsDto([pattern1, pattern2], version);
+        const patterns_2 = patterns_1.deletePattern(pattern1, newVersion);
+
+        expect(patterns_2.patterns).toEqual([pattern2]);
+        expect(patterns_2.version).toEqual(newVersion);
+    });
+
+    it('should update patterns when updating pattern', () => {
+        const patterns_1 = new AppPatternsDto([pattern1, pattern2], version);
+        const patterns_2 = patterns_1.updatePattern(pattern2_new, newVersion);
+
+        expect(patterns_2.patterns).toEqual([pattern1, pattern2_new]);
+        expect(patterns_2.version).toEqual(newVersion);
+    });
+});
+
+describe('AppPatternDto', () => {
+    it('should update properties when updating', () => {
+        const pattern_1 = new AppPatternDto('1', 'Number', '[0-9]', 'Message1');
+        const pattern_2 = pattern_1.update(new UpdatePatternDto('Numbers', '[0-9]*', 'Message2'));
+
+        expect(pattern_2.name).toBe('Numbers');
+        expect(pattern_2.pattern).toBe('[0-9]*');
+        expect(pattern_2.message).toBe('Message2');
+    });
+});
+
+describe('AppPatternsService', () => {
+    const version = new Version('1');
+
+    beforeEach(() => {
+        TestBed.configureTestingModule({
+            imports: [
+                HttpClientTestingModule
+            ],
+            providers: [
+                AppPatternsService,
+                { provide: ApiUrlConfig, useValue: new ApiUrlConfig('http://service/p/') }
+            ]
+        });
+    });
+
+    afterEach(inject([HttpTestingController], (httpMock: HttpTestingController) => {
+        httpMock.verify();
+    }));
+
+    it('should make get request to get patterns',
+        inject([AppPatternsService, HttpTestingController], (patternService: AppPatternsService, httpMock: HttpTestingController) => {
+
+        let patterns: AppPatternsDto | null = null;
+
+        patternService.getPatterns('my-app').subscribe(result => {
+            patterns = result;
+        });
+
+        const req = httpMock.expectOne('http://service/p/api/apps/my-app/patterns');
+
+        expect(req.request.method).toEqual('GET');
+        expect(req.request.headers.get('If-Match')).toBeNull();
+
+        req.flush([
+            {
+                patternId: '1',
+                pattern: '[0-9]',
+                name: 'Number',
+                message: 'Message1'
+            }, {
+                patternId: '2',
+                pattern: '[0-9]*',
+                name: 'Numbers',
+                message: 'Message2'
+            }
+        ], {
+            headers: {
+                etag: '2'
+            }
+        });
+
+        expect(patterns).toEqual(
+            new AppPatternsDto([
+                new AppPatternDto('1', 'Number', '[0-9]', 'Message1'),
+                new AppPatternDto('2', 'Numbers', '[0-9]*', 'Message2')
+            ], new Version('2')));
+    }));
+
+    it('should make post request to add pattern',
+        inject([AppPatternsService, HttpTestingController], (patternService: AppPatternsService, httpMock: HttpTestingController) => {
+
+        const dto = new UpdatePatternDto('Number', '[0-9]', 'Message1');
+
+        let pattern: AppPatternDto | null = null;
+
+        patternService.postPattern('my-app', dto, version).subscribe(result => {
+            pattern = result.payload;
+        });
+
+        const req = httpMock.expectOne('http://service/p/api/apps/my-app/patterns');
+
+        expect(req.request.method).toEqual('POST');
+        expect(req.request.headers.get('If-Match')).toEqual(version.value);
+
+        req.flush({
+            patternId: '1',
+            pattern: '[0-9]',
+            name: 'Number',
+            message: 'Message1'
+        });
+
+        expect(pattern).toEqual(new AppPatternDto('1', 'Number', '[0-9]', 'Message1'));
+    }));
+
+    it('should make put request to update pattern',
+        inject([AppPatternsService, HttpTestingController], (patternService: AppPatternsService, httpMock: HttpTestingController) => {
+
+        const dto = new UpdatePatternDto('Number', '[0-9]', 'Message1');
+
+        patternService.putPattern('my-app', '1', dto, version).subscribe();
+
+        const req = httpMock.expectOne('http://service/p/api/apps/my-app/patterns/1');
+
+        expect(req.request.method).toEqual('PUT');
+        expect(req.request.headers.get('If-Match')).toEqual(version.value);
+
+        req.flush({});
+    }));
+
+    it('should make delete request to remove pattern',
+        inject([AppPatternsService, HttpTestingController], (patternService: AppPatternsService, httpMock: HttpTestingController) => {
+
+        patternService.deletePattern('my-app', '1', version).subscribe();
+
+        const req = httpMock.expectOne('http://service/p/api/apps/my-app/patterns/1');
+
+        expect(req.request.method).toEqual('DELETE');
+        expect(req.request.headers.get('If-Match')).toEqual(version.value);
+
+        req.flush({});
+    }));
+});

src/Squidex/app/shared/services/app-patterns.service.ts

@@ -0,0 +1,130 @@
+/*
+ * Squidex Headless CMS
+ *
+ * @license
+ * Copyright (c) Sebastian Stehle. All rights reserved
+ */
+
+import { HttpClient } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+
+import 'framework/angular/http-extensions';
+
+import {
+    ApiUrlConfig,
+    HTTP,
+    Version,
+    Versioned
+} from 'framework';
+
+export class AppPatternsDto {
+    constructor(
+        public readonly patterns: AppPatternDto[],
+        public readonly version: Version
+    ) {
+    }
+
+    public addPattern(pattern: AppPatternDto, version: Version) {
+        return new AppPatternsDto([...this.patterns, pattern],  version);
+    }
+
+    public updatePattern(pattern: AppPatternDto, version: Version) {
+        return new AppPatternsDto(this.patterns.map(p => p.patternId === pattern.patternId ? pattern : p), version);
+    }
+
+    public deletePattern(pattern: AppPatternDto, version: Version) {
+        return new AppPatternsDto(this.patterns.filter(c => c.patternId !== pattern.patternId), version);
+    }
+}
+
+export class AppPatternDto {
+    constructor(
+        public readonly patternId: string,
+        public readonly name: string,
+        public readonly pattern: string,
+        public readonly message: string
+    ) {
+    }
+
+    public update(update: UpdatePatternDto) {
+        return new AppPatternDto(
+            this.patternId,
+            update.name,
+            update.pattern,
+            update.message);
+    }
+}
+
+export class UpdatePatternDto {
+    constructor(
+        public readonly name: string,
+        public readonly pattern: string,
+        public readonly message: string
+    ) {
+    }
+}
+
+
+@Injectable()
+export class AppPatternsService {
+    constructor(
+        private readonly http: HttpClient,
+        private readonly apiUrl: ApiUrlConfig
+    ) {
+    }
+
+    public getPatterns(appName: string): Observable<AppPatternsDto> {
+        const url = this.apiUrl.buildUrl(`api/apps/${appName}/patterns`);
+
+        return HTTP.getVersioned<any>(this.http, url)
+            .map(response => {
+                const body = response.payload.body;
+
+                const items: any[] = body;
+
+                return new AppPatternsDto(
+                    items.map(item => {
+                        return new AppPatternDto(
+                            item.patternId,
+                            item.name,
+                            item.pattern,
+                            item.message);
+                    }),
+                    response.version);
+            })
+            .pretifyError('Failed to add pattern. Please reload.');
+    }
+
+    public postPattern(appName: string, dto: UpdatePatternDto, version: Version): Observable<Versioned<AppPatternDto>> {
+        const url = this.apiUrl.buildUrl(`api/apps/${appName}/patterns`);
+
+        return HTTP.postVersioned<any>(this.http, url, dto, version)
+            .map(response => {
+                const body = response.payload.body;
+
+                const pattern = new AppPatternDto(
+                    body.patternId,
+                    body.name,
+                    body.pattern,
+                    body.message);
+
+                return new Versioned(response.version, pattern);
+            })
+            .pretifyError('Failed to add pattern. Please reload.');
+    }
+
+    public putPattern(appName: string, id: string, dto: UpdatePatternDto, version: Version): Observable<Versioned<any>> {
+        const url = this.apiUrl.buildUrl(`api/apps/${appName}/patterns/${id}`);
+
+        return HTTP.putVersioned(this.http, url, dto, version)
+            .pretifyError('Failed to update pattern. Please reload.');
+    }
+
+    public deletePattern(appName: string, id: string, version: Version): Observable<Versioned<any>> {
+        const url = this.apiUrl.buildUrl(`api/apps/${appName}/patterns/${id}`);
+
+        return HTTP.deleteVersioned(this.http, url, version)
+            .pretifyError('Failed to remove pattern. Please reload.');
+    }
+}

src/Squidex/app/shared/services/ui.service.spec.ts

@@ -41,7 +41,7 @@ describe('UIService', () => {
             settings1 = result;
         });
 
-        const response: UISettingsDto = { regexSuggestions: [], mapType: 'OSM', mapKey: '' };
+        const response: UISettingsDto = { mapType: 'OSM', mapKey: '' };
 
         const req = httpMock.expectOne('http://service/p/api/ui/settings');
 
@@ -75,6 +75,5 @@ describe('UIService', () => {
         req.error(new ErrorEvent('500'));
 
         expect(settings).toBeDefined();
-        expect(settings!.regexSuggestions).toEqual([]);
     }));
 });

src/Squidex/app/shared/services/ui.service.ts

@@ -14,15 +14,10 @@ import 'framework/angular/http-extensions';
 import { ApiUrlConfig } from 'framework';
 
 export interface UISettingsDto {
-    regexSuggestions: UIRegexSuggestionDto[];
     mapType: string;
     mapKey: string;
 }
 
-export interface UIRegexSuggestionDto {
-    name: string; pattern: string;
-}
-
 @Injectable()
 export class UIService {
     private settings: UISettingsDto;

src/Squidex/appsettings.json

@@ -16,7 +16,7 @@
       // Regex for phone numbers.
       "Phone": "^\\(*\\+*[1-9]{0,3}\\)*-*[1-9]{0,3}[-. /]*\\(*[2-9]\\d{2}\\)*[-. /]*\\d{3}[-. /]*\\d{4} *e*x*t*\\.* *\\d{0,4}$",
       // Regex for slugs (e.g. hello-world).
-      "Slug": "^[a-z0-9]+(\\\\-[a-z0-9]+)*$",
+      "Slug": "^[a-z0-9]+(\\-[a-z0-9]+)*$",
       // Regex for urls.
       "Url": "^(?:http(s)?:\\/\\/)?[\\w.-]+(?:\\.[\\w\\.-]+)+[\\w\\-\\._~:/?#[\\]@!\\$&'\\(\\)\\*\\+,;=.]+$"
     },

tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppPatternJsonTests.cs

@@ -0,0 +1,44 @@
+// ==========================================================================
+//  AppClientJsonTests.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using FluentAssertions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using Squidex.Domain.Apps.Core.Apps;
+using Xunit;
+
+namespace Squidex.Domain.Apps.Core.Model.Apps
+{
+    public class AppPatternJsonTests
+    {
+        private readonly JsonSerializer serializer = TestData.DefaultSerializer();
+
+        [Fact]
+        public void Should_serialize_and_deserialize()
+        {
+            var patterns = AppPatterns.Empty;
+
+            var guid1 = Guid.NewGuid();
+            var guid2 = Guid.NewGuid();
+            var guid3 = Guid.NewGuid();
+
+            patterns = patterns.Add(guid1, "Name1", "Pattern1", "Default");
+            patterns = patterns.Add(guid2, "Name2", "Pattern2", "Default");
+            patterns = patterns.Add(guid3, "Name3", "Pattern3", "Default");
+
+            patterns = patterns.Update(guid2, "Name2 Update", "Pattern2 Update", "Default2");
+
+            patterns = patterns.Remove(guid1);
+
+            var appPatterns = JToken.FromObject(patterns, serializer).ToObject<AppPatterns>(serializer);
+
+            appPatterns.ShouldBeEquivalentTo(patterns);
+        }
+    }
+}

tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppPatternsTests.cs

@@ -0,0 +1,77 @@
+// ==========================================================================
+//  AppClientsTests.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using FluentAssertions;
+using Squidex.Domain.Apps.Core.Apps;
+using Xunit;
+
+#pragma warning disable SA1310 // Field names must not contain underscore
+
+namespace Squidex.Domain.Apps.Core.Model.Apps
+{
+    public class AppPatternsTests
+    {
+        private readonly AppPatterns patterns_1;
+        private readonly Guid firstId = Guid.NewGuid();
+        private readonly Guid id = Guid.NewGuid();
+
+        public AppPatternsTests()
+        {
+            patterns_1 = AppPatterns.Empty.Add(firstId, "Default", "Default Pattern", "Message");
+        }
+
+        [Fact]
+        public void Should_add_pattern()
+        {
+            var patterns_2 = patterns_1.Add(id, "NewPattern", "New Pattern", "Message");
+
+            patterns_2[id].ShouldBeEquivalentTo(new AppPattern("NewPattern", "New Pattern", "Message"));
+        }
+
+        [Fact]
+        public void Should_throw_exception_if_add_pattern_with_same_id()
+        {
+            var patterns_2 = patterns_1.Add(id, "NewPattern", "New Pattern", "Message");
+
+            Assert.Throws<ArgumentException>(() => patterns_2.Add(id, "NewPattern", "New Pattern", "Message"));
+        }
+
+        [Fact]
+        public void Should_update_pattern()
+        {
+            var patterns_2 = patterns_1.Update(firstId, "UpdatePattern", "Update Pattern", "Message");
+
+            patterns_2[firstId].ShouldBeEquivalentTo(new AppPattern("UpdatePattern", "Update Pattern", "Message"));
+        }
+
+        [Fact]
+        public void Should_return_same_patterns_if_pattern_not_found()
+        {
+            var patterns_2 = patterns_1.Update(id, "NewPattern", "NewPattern", "Message");
+
+            Assert.Same(patterns_1, patterns_2);
+        }
+
+        [Fact]
+        public void Should_remove_pattern()
+        {
+            var patterns_2 = patterns_1.Remove(firstId);
+
+            Assert.Empty(patterns_2);
+        }
+
+        [Fact]
+        public void Should_do_nothing_if_remove_pattern_not_found()
+        {
+            var patterns_2 = patterns_1.Remove(id);
+
+            Assert.NotSame(patterns_1, patterns_2);
+        }
+    }
+}

tests/Squidex.Domain.Apps.Core.Tests/TestData.cs

@@ -35,6 +35,7 @@ namespace Squidex.Domain.Apps.Core
                 ContractResolver = new ConverterContractResolver(
                     new AppClientsConverter(),
                     new AppContributorsConverter(),
+                    new AppPatternsConverter(),
                     new InstantConverter(),
                     new LanguageConverter(),
                     new LanguagesConfigConverter(),

tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppCommandMiddlewareTests.cs

@@ -26,10 +26,11 @@ namespace Squidex.Domain.Apps.Entities.Apps
         private readonly IAppPlansProvider appPlansProvider = A.Fake<IAppPlansProvider>();
         private readonly IAppPlanBillingManager appPlansBillingManager = A.Fake<IAppPlanBillingManager>();
         private readonly IUserResolver userResolver = A.Fake<IUserResolver>();
-        private readonly AppDomainObject app = new AppDomainObject();
         private readonly Language language = Language.DE;
         private readonly string contributorId = Guid.NewGuid().ToString();
         private readonly string clientName = "client";
+        private readonly Guid patternId = Guid.NewGuid();
+        private readonly AppDomainObject app = new AppDomainObject(new InitialPatterns());
         private readonly AppCommandMiddleware sut;
 
         protected override Guid Id
@@ -232,6 +233,47 @@ namespace Squidex.Domain.Apps.Entities.Apps
             });
         }
 
+        [Fact]
+        public async Task AddPattern_should_update_domain_object()
+        {
+            CreateApp();
+
+            var context = CreateContextForCommand(new AddPattern { Name = "Any", Pattern = ".*" });
+
+            await TestUpdate(app, async _ =>
+            {
+                await sut.HandleAsync(context);
+            });
+        }
+
+        [Fact]
+        public async Task UpdatePattern_should_update_domain()
+        {
+            CreateApp()
+                .AddPattern(CreateCommand(new AddPattern { PatternId = patternId, Name = "Any", Pattern = "." }));
+
+            var context = CreateContextForCommand(new UpdatePattern { PatternId = patternId, Name = "Number", Pattern = "[0-9]" });
+
+            await TestUpdate(app, async _ =>
+            {
+                await sut.HandleAsync(context);
+            });
+        }
+
+        [Fact]
+        public async Task DeletePattern_should_update_domain_object()
+        {
+            CreateApp()
+                .AddPattern(CreateCommand(new AddPattern { PatternId = patternId, Name = "Any", Pattern = "." }));
+
+            var context = CreateContextForCommand(new DeletePattern { PatternId = patternId });
+
+            await TestUpdate(app, async _ =>
+            {
+                await sut.HandleAsync(context);
+            });
+        }
+
         private AppDomainObject CreateApp()
         {
             app.Create(CreateCommand(new CreateApp { AppId = AppId, Name = AppName }));

tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs

@@ -24,7 +24,8 @@ namespace Squidex.Domain.Apps.Entities.Apps
         private readonly string clientId = "client";
         private readonly string clientNewName = "My Client";
         private readonly string planId = "premium";
-        private readonly AppDomainObject sut = new AppDomainObject();
+        private readonly Guid patternId = Guid.NewGuid();
+        private readonly AppDomainObject sut = new AppDomainObject(new InitialPatterns());
 
         protected override Guid Id
         {
@@ -45,15 +46,28 @@ namespace Squidex.Domain.Apps.Entities.Apps
         [Fact]
         public void Create_should_specify_name_and_owner()
         {
-            sut.Create(CreateCommand(new CreateApp { Name = AppName, Actor = User, AppId = AppId }));
+            var id1 = Guid.NewGuid();
+            var id2 = Guid.NewGuid();
 
-            Assert.Equal(AppName, sut.State.Name);
+            var initialPatterns = new InitialPatterns
+            {
+                { id1, new AppPattern("Number", "[0-9]") },
+                { id2, new AppPattern("Numbers", "[0-9]*") }
+            };
 
-            sut.GetUncomittedEvents()
+            var app = new AppDomainObject(initialPatterns);
+
+            app.Create(CreateCommand(new CreateApp { Name = AppName, Actor = User, AppId = AppId }));
+
+            Assert.Equal(AppName, app.State.Name);
+
+            app.GetUncomittedEvents()
                 .ShouldHaveSameEvents(
                     CreateEvent(new AppCreated { Name = AppName }),
                     CreateEvent(new AppContributorAssigned { ContributorId = User.Identifier, Permission = AppContributorPermission.Owner }),
-                    CreateEvent(new AppLanguageAdded { Language = Language.EN })
+                    CreateEvent(new AppLanguageAdded { Language = Language.EN }),
+                    CreateEvent(new AppPatternAdded { PatternId = id1, Name = "Number", Pattern = "[0-9]" }),
+                    CreateEvent(new AppPatternAdded { PatternId = id2, Name = "Numbers", Pattern = "[0-9]*" })
                 );
         }
 
@@ -281,6 +295,83 @@ namespace Squidex.Domain.Apps.Entities.Apps
                 );
         }
 
+        [Fact]
+        public void AddPattern_should_throw_exception_if_app_not_created()
+        {
+            Assert.Throws<DomainException>(() => sut.AddPattern(CreateCommand(new AddPattern { PatternId = patternId, Name = "Any", Pattern = ".*" })));
+        }
+
+        [Fact]
+        public void AddPattern_should_create_events()
+        {
+            CreateApp();
+
+            sut.AddPattern(CreateCommand(new AddPattern { PatternId = patternId, Name = "Any", Pattern = ".*", Message = "Msg" }));
+
+            Assert.Single(sut.State.Patterns);
+
+            sut.GetUncomittedEvents()
+                .ShouldHaveSameEvents(
+                    CreateEvent(new AppPatternAdded { PatternId = patternId, Name = "Any", Pattern = ".*", Message = "Msg" })
+                );
+        }
+
+        [Fact]
+        public void DeletePattern_should_throw_exception_if_app_not_created()
+        {
+            Assert.Throws<DomainException>(() =>
+            {
+                sut.DeletePattern(CreateCommand(new DeletePattern
+                {
+                    PatternId = Guid.NewGuid()
+                }));
+            });
+        }
+
+        [Fact]
+        public void DeletePattern_should_create_events()
+        {
+            CreateApp();
+            CreatePattern();
+
+            sut.DeletePattern(CreateCommand(new DeletePattern { PatternId = patternId }));
+
+            Assert.Empty(sut.State.Patterns);
+
+            sut.GetUncomittedEvents()
+                .ShouldHaveSameEvents(
+                    CreateEvent(new AppPatternDeleted { PatternId = patternId })
+                );
+        }
+
+        [Fact]
+        public void UpdatePattern_should_throw_exception_if_app_not_created()
+        {
+            Assert.Throws<DomainException>(() => sut.UpdatePattern(CreateCommand(new UpdatePattern { PatternId = patternId, Name = "Any", Pattern = ".*" })));
+        }
+
+        [Fact]
+        public void UpdatePattern_should_create_events()
+        {
+            CreateApp();
+            CreatePattern();
+
+            sut.UpdatePattern(CreateCommand(new UpdatePattern { PatternId = patternId, Name = "Any", Pattern = ".*", Message = "Msg" }));
+
+            Assert.Single(sut.State.Patterns);
+
+            sut.GetUncomittedEvents()
+                .ShouldHaveSameEvents(
+                    CreateEvent(new AppPatternUpdated { PatternId = patternId, Name = "Any", Pattern = ".*", Message = "Msg" })
+                );
+        }
+
+        private void CreatePattern()
+        {
+            sut.AddPattern(CreateCommand(new AddPattern { PatternId = patternId, Name = "Name", Pattern = ".*" }));
+            sut.ClearUncommittedEvents();
+        }
+
         private void CreateApp()
         {
             sut.Create(CreateCommand(new CreateApp { Name = AppName }));

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

@@ -0,0 +1,169 @@
+// ==========================================================================
+//  GuardAppPatternsTests.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using Squidex.Domain.Apps.Core.Apps;
+using Squidex.Domain.Apps.Entities.Apps.Commands;
+using Squidex.Domain.Apps.Entities.Apps.Guards;
+using Squidex.Infrastructure;
+using Xunit;
+
+#pragma warning disable SA1310 // Field names must not contain underscore
+
+namespace Squidex.Domain.Apps.Write.Apps.Guards
+{
+    public class GuardAppPatternsTests
+    {
+        private readonly Guid patternId = Guid.NewGuid();
+        private readonly AppPatterns patterns_0 = AppPatterns.Empty;
+
+        [Fact]
+        public void CanAdd_should_throw_exception_if_name_empty()
+        {
+            var command = new AddPattern { PatternId = patternId, Name = string.Empty, Pattern = ".*" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanAdd(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanAdd_should_throw_exception_if_id_empty_guid()
+        {
+            var command = new AddPattern { Name = string.Empty, Pattern = ".*" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanAdd(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanAdd_should_throw_exception_if_pattern_empty()
+        {
+            var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = string.Empty };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanAdd(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanAdd_should_throw_exception_if_pattern_not_valid()
+        {
+            var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = "[0-9{1}" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanAdd(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanAdd_should_throw_exception_if_name_exists()
+        {
+            var patterns_1 = patterns_0.Add(Guid.NewGuid(), "any", "[a-z]", "Message");
+
+            var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = ".*" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanAdd(patterns_1, command));
+        }
+
+        [Fact]
+        public void CanAdd_should_not_throw_exception_if_success()
+        {
+            var command = new AddPattern { PatternId = patternId, Name = "any", Pattern = ".*" };
+
+            GuardAppPattern.CanAdd(patterns_0, command);
+        }
+
+        [Fact]
+        public void CanDelete_should_throw_exception_if_pattern_not_found()
+        {
+            var command = new DeletePattern { PatternId = patternId };
+
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPattern.CanDelete(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanDelete_should_not_throw_exception_if_success()
+        {
+            var patterns_1 = patterns_0.Add(patternId, "any", ".*", "Message");
+
+            var command = new DeletePattern { PatternId = patternId };
+
+            GuardAppPattern.CanDelete(patterns_1, command);
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_name_empty()
+        {
+            var patterns_1 = patterns_0.Add(patternId, "any", ".*", "Message");
+
+            var command = new UpdatePattern { PatternId = patternId, Name = string.Empty, Pattern = ".*" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanUpdate(patterns_1, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_pattern_empty()
+        {
+            var patterns_1 = patterns_0.Add(patternId, "any", ".*", "Message");
+
+            var command = new UpdatePattern { PatternId = patternId, Name = "any", Pattern = string.Empty };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanUpdate(patterns_1, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_pattern_not_valid()
+        {
+            var patterns_1 = patterns_0.Add(patternId, "any", ".*", "Message");
+
+            var command = new UpdatePattern { PatternId = patternId, Name = "any", Pattern = "[0-9{1}" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanUpdate(patterns_1, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_name_exists()
+        {
+            var id1 = Guid.NewGuid();
+            var id2 = Guid.NewGuid();
+
+            var patterns_1 = patterns_0.Add(id1, "Pattern1", "[0-5]", "Message");
+            var patterns_2 = patterns_1.Add(id2, "Pattern2", "[0-4]", "Message");
+
+            var command = new UpdatePattern { PatternId = id2, Name = "Pattern1", Pattern = "[0-4]" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanUpdate(patterns_2, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_pattern_exists()
+        {
+            var id1 = Guid.NewGuid();
+            var id2 = Guid.NewGuid();
+
+            var patterns_1 = patterns_0.Add(id1, "Pattern1", "[0-5]", "Message");
+            var patterns_2 = patterns_1.Add(id2, "Pattern2", "[0-4]", "Message");
+
+            var command = new UpdatePattern { PatternId = id2, Name = "Pattern2", Pattern = "[0-5]" };
+
+            Assert.Throws<ValidationException>(() => GuardAppPattern.CanUpdate(patterns_2, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_throw_exception_if_pattern_does_not_exists()
+        {
+            var command = new UpdatePattern { PatternId = patternId, Name = "Pattern1", Pattern = ".*" };
+
+            Assert.Throws<DomainObjectNotFoundException>(() => GuardAppPattern.CanUpdate(patterns_0, command));
+        }
+
+        [Fact]
+        public void CanUpdate_should_not_throw_exception_if_pattern_exist_with_valid_command()
+        {
+            var patterns_1 = patterns_0.Add(patternId, "any", ".*", "Message");
+
+            var command = new UpdatePattern { PatternId = patternId, Name = "Pattern1", Pattern = ".*" };
+
+            GuardAppPattern.CanUpdate(patterns_1, command);
+        }
+    }
+}

tools/Migrate_01/Migration01.cs → tools/Migrate_01/Migration01_FromCqrs.cs

@@ -6,7 +6,6 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System;
 using System.Threading;
 using System.Threading.Tasks;
 using Squidex.Domain.Apps.Core.Schemas;
@@ -21,24 +20,21 @@ using Squidex.Infrastructure;
 using Squidex.Infrastructure.EventSourcing;
 using Squidex.Infrastructure.Migrations;
 using Squidex.Infrastructure.States;
-using Squidex.Infrastructure.Tasks;
 
 namespace Migrate_01
 {
-    public sealed class Migration01 : IMigration, IEventSubscriber
+    public sealed class Migration01_FromCqrs : IMigration
     {
         private readonly FieldRegistry fieldRegistry;
         private readonly IEventStore eventStore;
         private readonly IEventDataFormatter eventDataFormatter;
         private readonly IStateFactory stateFactory;
-        private readonly Timer timer;
-        private readonly TaskCompletionSource<object> subscriptionTcs = new TaskCompletionSource<object>();
 
         public int FromVersion { get; } = 0;
 
         public int ToVersion { get; } = 1;
 
-        public Migration01(
+        public Migration01_FromCqrs(
             FieldRegistry fieldRegistry,
             IEventDataFormatter eventDataFormatter,
             IEventStore eventStore,
@@ -48,30 +44,12 @@ namespace Migrate_01
             this.eventDataFormatter = eventDataFormatter;
             this.eventStore = eventStore;
             this.stateFactory = stateFactory;
-
-            timer = new Timer(d => subscriptionTcs.TrySetResult(true));
         }
 
         public async Task UpdateAsync()
         {
-            var subscription = eventStore.CreateSubscription(this, ".*");
-
-            try
-            {
-                await subscriptionTcs.Task;
-            }
-            finally
-            {
-                await subscription.StopAsync();
-            }
-        }
-
-        public async Task OnEventAsync(IEventSubscription subscription, StoredEvent storedEvent)
-        {
-            try
+            await eventStore.GetEventsAsync(async storedEvent =>
             {
-                timer.Change(Timeout.Infinite, Timeout.Infinite);
-
                 var @event = ParseKnownEvent(storedEvent);
 
                 if (@event != null)
@@ -111,20 +89,7 @@ namespace Migrate_01
                         await app.WriteStateAsync(version);
                     }
                 }
-
-                timer.Change(5000, 0);
-            }
-            catch (Exception ex)
-            {
-                subscriptionTcs.SetException(ex);
-            }
-        }
-
-        public Task OnErrorAsync(IEventSubscription subscription, Exception exception)
-        {
-            subscriptionTcs.TrySetException(exception);
-
-            return TaskHelper.Done;
+            }, CancellationToken.None);
         }
 
         private Envelope<IEvent> ParseKnownEvent(StoredEvent storedEvent)

tools/Migrate_01/Migration02_AddPatterns.cs

@@ -0,0 +1,71 @@
+// ==========================================================================
+//  Migration02_AddPatterns.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.Threading.Tasks;
+using Squidex.Domain.Apps.Entities.Apps;
+using Squidex.Domain.Apps.Entities.Apps.Commands;
+using Squidex.Domain.Apps.Entities.Apps.Repositories;
+using Squidex.Infrastructure;
+using Squidex.Infrastructure.Migrations;
+using Squidex.Infrastructure.States;
+
+namespace Migrate_01
+{
+    public sealed class Migration02_AddPatterns : IMigration
+    {
+        private readonly InitialPatterns initialPatterns;
+        private readonly IStateFactory stateFactory;
+        private readonly IAppRepository appRepository;
+
+        public int FromVersion { get; } = 1;
+
+        public int ToVersion { get; } = 2;
+
+        public Migration02_AddPatterns(
+            InitialPatterns initialPatterns,
+            IStateFactory stateFactory,
+            IAppRepository appRepository)
+        {
+            this.initialPatterns = initialPatterns;
+            this.appRepository = appRepository;
+            this.stateFactory = stateFactory;
+        }
+
+        public async Task UpdateAsync()
+        {
+            var ids = await appRepository.QueryAppIdsAsync();
+
+            foreach (var id in ids)
+            {
+                var app = await stateFactory.CreateAsync<AppDomainObject>(id);
+
+                if (app.State.Patterns.Count == 0)
+                {
+                    foreach (var pattern in initialPatterns.Values)
+                    {
+                        var command =
+                            new AddPattern
+                            {
+                                Actor = app.State.CreatedBy,
+                                AppId = new NamedId<Guid>(app.State.Id, app.State.Name),
+                                Name = pattern.Name,
+                                PatternId = Guid.NewGuid(),
+                                Pattern = pattern.Pattern,
+                                Message = pattern.Message
+                            };
+
+                        app.AddPattern(command);
+                    }
+
+                    await app.WriteStateAsync(app.Version + initialPatterns.Count);
+                }
+            }
+        }
+    }
+}