Publish EntityUpdatedEvent when navigation changes.

framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/Events/AbpEntityChangeOptions.cs

@@ -0,0 +1,10 @@
+namespace Volo.Abp.Domain.Entities.Events;
+
+public class AbpEntityChangeOptions
+{
+    /// <summary>
+    /// Default: true.
+    /// Publish the EntityUpdatedEvent when any navigation property changes.
+    /// </summary>
+    public bool PublishEntityUpdatedEventWhenNavigationChanges { get; set; } = true;
+}

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/AbpDbContext.cs

@@ -12,6 +12,7 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.ChangeTracking;
 using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.Extensions.Options;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
 using Volo.Abp.Auditing;
@@ -20,6 +21,7 @@
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Entities.Events;
 using Volo.Abp.Domain.Repositories;
+using Volo.Abp.EntityFrameworkCore.ChangeTrackers;
 using Volo.Abp.EntityFrameworkCore.EntityHistory;
 using Volo.Abp.EntityFrameworkCore.Modeling;
 using Volo.Abp.EntityFrameworkCore.ValueConverters;
@@ -53,6 +55,8 @@
 
     public IEntityChangeEventHelper EntityChangeEventHelper => LazyServiceProvider.LazyGetService<IEntityChangeEventHelper>(NullEntityChangeEventHelper.Instance);
 
+    public IOptions<AbpEntityChangeOptions> EntityChangeOptions => LazyServiceProvider.LazyGetRequiredService<IOptions<AbpEntityChangeOptions>>();
+
     public IAuditPropertySetter AuditPropertySetter => LazyServiceProvider.LazyGetRequiredService<IAuditPropertySetter>();
 
     public IEntityHistoryHelper EntityHistoryHelper => LazyServiceProvider.LazyGetService<IEntityHistoryHelper>(NullEntityHistoryHelper.Instance);
@@ -69,6 +73,8 @@
 
     public ILogger<AbpDbContext<TDbContext>> Logger => LazyServiceProvider.LazyGetService<ILogger<AbpDbContext<TDbContext>>>(NullLogger<AbpDbContext<TDbContext>>.Instance);
 
+    public AbpEfCoreNavigationHelper AbpEfCoreNavigationHelper => LazyServiceProvider.LazyGetRequiredService<AbpEfCoreNavigationHelper>();
+
     private static readonly MethodInfo ConfigureBasePropertiesMethodInfo
         = typeof(AbpDbContext<TDbContext>)
             .GetMethod(
@@ -160,6 +166,7 @@
             List<EntityChangeInfo>? entityChangeList = null;
             if (auditLog != null)
             {
+                EntityHistoryHelper.InitializeNavigationHelper(AbpEfCoreNavigationHelper);
                 entityChangeList = EntityHistoryHelper.CreateChangeList(ChangeTracker.Entries().ToList());
             }
 
@@ -251,12 +258,14 @@
 
     protected virtual void ChangeTracker_Tracked(object? sender, EntityTrackedEventArgs e)
     {
+        AbpEfCoreNavigationHelper.ChangeTracker_Tracked(ChangeTracker, sender, e);
         FillExtraPropertiesForTrackedEntities(e);
         PublishEventsForTrackedEntity(e.Entry);
     }
 
     protected virtual void ChangeTracker_StateChanged(object? sender, EntityStateChangedEventArgs e)
     {
+        AbpEfCoreNavigationHelper.ChangeTracker_StateChanged(ChangeTracker, sender, e);
         PublishEventsForTrackedEntity(e.Entry);
     }
 
@@ -306,17 +315,18 @@
         }
     }
 
-    private void PublishEventsForTrackedEntity(EntityEntry entry)
+    protected virtual void PublishEventsForTrackedEntity(EntityEntry entry)
     {
         switch (entry.State)
         {
             case EntityState.Added:
                 ApplyAbpConceptsForAddedEntity(entry);
                 EntityChangeEventHelper.PublishEntityCreatedEvent(entry.Entity);
                 break;
+
             case EntityState.Modified:
                 ApplyAbpConceptsForModifiedEntity(entry);
-                if (entry.Properties.Any(x => x.IsModified && x.Metadata.ValueGenerated == ValueGenerated.Never))
+                if (entry.Properties.Any(x => x.IsModified && (x.Metadata.ValueGenerated == ValueGenerated.Never || x.Metadata.ValueGenerated == ValueGenerated.OnAdd)))
                 {
                     if (entry.Entity is ISoftDelete && entry.Entity.As<ISoftDelete>().IsDeleted)
                     {
@@ -327,13 +337,28 @@
                         EntityChangeEventHelper.PublishEntityUpdatedEvent(entry.Entity);
                     }
                 }
-
                 break;
+
             case EntityState.Deleted:
                 ApplyAbpConceptsForDeletedEntity(entry);
                 EntityChangeEventHelper.PublishEntityDeletedEvent(entry.Entity);
                 break;
         }
+
+        if (EntityChangeOptions.Value.PublishEntityUpdatedEventWhenNavigationChanges)
+        {
+            foreach (var entityEntry in ChangeTracker.Entries().Where(x => x.State == EntityState.Unchanged && AbpEfCoreNavigationHelper.IsEntityEntryNavigationChanged(x)))
+            {
+                if (entityEntry.Entity is ISoftDelete && entityEntry.Entity.As<ISoftDelete>().IsDeleted)
+                {
+                    EntityChangeEventHelper.PublishEntityDeletedEvent(entityEntry.Entity);
+                }
+                else
+                {
+                    EntityChangeEventHelper.PublishEntityUpdatedEvent(entityEntry.Entity);
+                }
+            }
+        }
     }
 
     protected virtual void HandlePropertiesBeforeSave()

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEfCoreNavigationHelper.cs

@@ -0,0 +1,163 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using Volo.Abp.DependencyInjection;
+using Volo.Abp.Domain.Entities;
+
+namespace Volo.Abp.EntityFrameworkCore.ChangeTrackers;
+
+/// <summary>
+/// Refactor this class after EF Core supports this case.
+/// https://github.com/dotnet/efcore/issues/24076#issuecomment-1996623874
+/// </summary>
+public class AbpEfCoreNavigationHelper : ITransientDependency
+{
+    private Dictionary<string, List<AbpEntityEntryNavigationProperty>> EntityEntryNavigationProperties { get; } = new ();
+
+    public virtual void ChangeTracker_Tracked(ChangeTracker changeTracker, object? sender, EntityTrackedEventArgs e)
+    {
+        foreach (var entry in changeTracker.Entries())
+        {
+            EntityEntryTrackedOrStateChanged(entry);
+        }
+    }
+
+    public virtual void ChangeTracker_StateChanged(ChangeTracker changeTracker, object? sender, EntityStateChangedEventArgs e)
+    {
+        foreach (var entry in changeTracker.Entries())
+        {
+            EntityEntryTrackedOrStateChanged(entry);
+        }
+    }
+
+    private void EntityEntryTrackedOrStateChanged(EntityEntry entityEntry)
+    {
+        if (entityEntry.State != EntityState.Unchanged)
+        {
+            return;
+        }
+
+        var entryId = GetEntityId(entityEntry);
+        if (entryId == null)
+        {
+            return;
+        }
+
+        var navigationProperties = EntityEntryNavigationProperties.GetOrAdd(entryId, () => new List<AbpEntityEntryNavigationProperty>());
+        var index = 0;
+        foreach (var navigationEntry in entityEntry.Navigations.Where(navigation => !navigation.IsModified))
+        {
+            if (!navigationEntry.IsLoaded)
+            {
+                index++;
+                continue;
+            }
+
+            var currentValue = navigationEntry.CurrentValue;
+            if (navigationEntry.CurrentValue is ICollection collection)
+            {
+                currentValue = collection.Cast<object?>().ToList();
+            }
+
+            var navigationProperty = navigationProperties.FirstOrDefault(x => x.Index == index);
+            if (navigationProperty != null)
+            {
+                if (!navigationProperty.IsChanged && (navigationProperty.Value == null || IsCollectionAndEmpty(navigationProperty.Value)))
+                {
+                    navigationProperty.Value = currentValue;
+                    navigationProperty.IsChanged = currentValue != null && !IsCollectionAndEmpty(currentValue);
+                }
+
+                if (!navigationProperty.IsChanged  && navigationProperty.Value != null && !IsCollectionAndEmpty(navigationProperty.Value))
+                {
+                    navigationProperty.Value = currentValue;
+                    navigationProperty.IsChanged = currentValue == null || IsCollectionAndEmpty(currentValue);
+                }
+            }
+            else
+            {
+                navigationProperties.Add(new AbpEntityEntryNavigationProperty(index, navigationEntry.Metadata.Name, currentValue, false));
+            }
+
+            index++;
+        }
+    }
+
+    public bool IsEntityEntryNavigationChanged(EntityEntry entityEntry)
+    {
+        if (entityEntry.State == EntityState.Modified)
+        {
+            return true;
+        }
+
+        var entryId = GetEntityId(entityEntry);
+        if (entryId == null)
+        {
+            return false;
+        }
+
+        var index = 0;
+        foreach (var navigationEntry in entityEntry.Navigations)
+        {
+            if (navigationEntry.IsModified || (navigationEntry is ReferenceEntry && navigationEntry.As<ReferenceEntry>().TargetEntry?.State == EntityState.Modified))
+            {
+                return true;
+            }
+
+            EntityEntryTrackedOrStateChanged(entityEntry);
+
+            if (EntityEntryNavigationProperties.TryGetValue(entryId, out var navigationProperties))
+            {
+                var navigationProperty = navigationProperties.FirstOrDefault(x => x.Index == index);
+                if (navigationProperty != null && navigationProperty.IsChanged)
+                {
+                    return true;
+                }
+            }
+
+            index++;
+        }
+
+        return false;
+    }
+
+    public bool IsEntityEntryNavigationChanged(NavigationEntry navigationEntry, int index)
+    {
+        if (navigationEntry.IsModified || (navigationEntry is ReferenceEntry && navigationEntry.As<ReferenceEntry>().TargetEntry?.State == EntityState.Modified))
+        {
+            return true;
+        }
+
+        var entryId = GetEntityId(navigationEntry.EntityEntry);
+        if (entryId == null)
+        {
+            return false;
+        }
+
+        if (EntityEntryNavigationProperties.TryGetValue(entryId, out var navigationProperties))
+        {
+            var navigationProperty = navigationProperties.FirstOrDefault(x => x.Index == index);
+            if (navigationProperty != null && navigationProperty.IsChanged)
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private string? GetEntityId(EntityEntry entityEntry)
+    {
+        return entityEntry.Entity is IEntity entryEntity && entryEntity.GetKeys().Length == 1
+            ? entryEntity.GetKeys().FirstOrDefault()?.ToString()
+            : null;
+    }
+
+    private bool IsCollectionAndEmpty(object? value)
+    {
+        return value is ICollection && value is ICollection collection && collection.Count == 0;
+    }
+}

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntryNavigationProperty.cs

@@ -0,0 +1,20 @@
+namespace Volo.Abp.EntityFrameworkCore.ChangeTrackers;
+
+public class AbpEntityEntryNavigationProperty
+{
+    public int Index { get; set; }
+
+    public string Name { get; set; }
+
+    public object? Value { get; set; }
+
+    public bool IsChanged { get; set; }
+
+    public AbpEntityEntryNavigationProperty(int index, string name, object? value, bool isChanged)
+    {
+        Index = index;
+        Name = name;
+        Value = value;
+        IsChanged = isChanged;
+    }
+}

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/EntityHistory/EntityHistoryHelper.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using JetBrains.Annotations;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.ChangeTracking;
 using Microsoft.Extensions.Logging;
@@ -13,6 +12,7 @@
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.Domain.Values;
+using Volo.Abp.EntityFrameworkCore.ChangeTrackers;
 using Volo.Abp.Json;
 using Volo.Abp.MultiTenancy;
 using Volo.Abp.Reflection;
@@ -30,6 +30,8 @@ public class EntityHistoryHelper : IEntityHistoryHelper, ITransientDependency
     protected IAuditingHelper AuditingHelper { get; }
     protected IClock Clock { get; }
 
+    protected AbpEfCoreNavigationHelper? AbpEfCoreNavigationHelper { get; set; }
+
     public EntityHistoryHelper(
         IAuditingStore auditingStore,
         IOptions<AbpAuditingOptions> options,
@@ -46,6 +48,11 @@ public class EntityHistoryHelper : IEntityHistoryHelper, ITransientDependency
         Logger = NullLogger<EntityHistoryHelper>.Instance;
     }
 
+    public void InitializeNavigationHelper(AbpEfCoreNavigationHelper abpEfCoreNavigationHelper)
+    {
+        AbpEfCoreNavigationHelper = abpEfCoreNavigationHelper;
+    }
+
     public virtual List<EntityChangeInfo> CreateChangeList(ICollection<EntityEntry> entityEntries)
     {
         var list = new List<EntityChangeInfo>();
@@ -186,18 +193,21 @@ protected virtual List<EntityPropertyChangeInfo> GetPropertyChanges(EntityEntry
             }
         }
 
-        if (Options.SaveEntityHistoryWhenNavigationChanges && entityEntry.State == EntityState.Unchanged)
+        if (entityEntry.State == EntityState.Unchanged && Options.SaveEntityHistoryWhenNavigationChanges && AbpEfCoreNavigationHelper != null)
         {
+            var index = 0;
             foreach (var navigation in entityEntry.Navigations)
             {
-                if (navigation.IsModified || (navigation is ReferenceEntry && navigation.As<ReferenceEntry>().TargetEntry?.State == EntityState.Modified))
+                if (navigation.IsModified || AbpEfCoreNavigationHelper.IsEntityEntryNavigationChanged(navigation, index))
                 {
                     propertyChanges.Add(new EntityPropertyChangeInfo
                     {
                         PropertyName = navigation.Metadata.Name,
                         PropertyTypeFullName = navigation.Metadata.ClrType.GetFirstGenericArgumentIfNullable().FullName!
                     });
                 }
+
+                index++;
             }
         }
 
@@ -245,9 +255,7 @@ protected virtual bool ShouldSaveEntityHistory(EntityEntry entityEntry, bool def
 
     protected virtual bool HasNavigationPropertiesChanged(EntityEntry entityEntry)
     {
-        return Options.SaveEntityHistoryWhenNavigationChanges && entityEntry.State == EntityState.Unchanged &&
-               (entityEntry.Navigations.Any(navigationEntry => navigationEntry.IsModified) ||
-                entityEntry.Navigations.Where(x => x is ReferenceEntry).Cast<ReferenceEntry>().Any(x => x.TargetEntry != null && x.TargetEntry.State == EntityState.Modified));
+        return entityEntry.State == EntityState.Unchanged && Options.SaveEntityHistoryWhenNavigationChanges && AbpEfCoreNavigationHelper != null && AbpEfCoreNavigationHelper.IsEntityEntryNavigationChanged(entityEntry);
     }
 
     protected virtual bool ShouldSavePropertyHistory(PropertyEntry propertyEntry, bool defaultValue)

framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/EntityHistory/IEntityHistoryHelper.cs

@@ -1,11 +1,14 @@
 using System.Collections.Generic;
 using Microsoft.EntityFrameworkCore.ChangeTracking;
 using Volo.Abp.Auditing;
+using Volo.Abp.EntityFrameworkCore.ChangeTrackers;
 
 namespace Volo.Abp.EntityFrameworkCore.EntityHistory;
 
 public interface IEntityHistoryHelper
 {
+    void InitializeNavigationHelper(AbpEfCoreNavigationHelper abpEfCoreNavigationHelper);
+
     List<EntityChangeInfo> CreateChangeList(ICollection<EntityEntry> entityEntries);
 
     void UpdateChangeList(List<EntityChangeInfo> entityChanges);