小编Sim*_*paa的帖子

我正在尝试对 Entity Framework Core 中的选择类实施审计跟踪（跟踪更改的内容、时间和更改者）。

我当前的实现依赖于覆盖 OnSaveChangesAsync：

public override Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default) 
{
    var currentUserFullName = _userService.CurrentUserFullName!;

    foreach (var entry in ChangeTracker.Entries<AuditableEntity>())  
    {
        switch (entry.State) 
        {
            case EntityState.Added:
                    entry.Entity.CreatedBy = currentUserFullName;
                    entry.Entity.Created = _dateTime.Now;
                    break;

            case EntityState.Modified:
                    var originalValues = new Dictionary<string, object?>();
                    var currentValues = new Dictionary<string, object?>();

                    foreach (var prop in entry.Properties.Where(p => p.IsModified)) 
                    {
                        var name = prop.Metadata.Name;
                        originalValues.Add(name, prop.OriginalValue);
                        currentValues.Add(name, prop.CurrentValue);
                    }
                    entry.Entity.LastModifiedBy = currentUserFullName;
                    entry.Entity.LastModified = _dateTime.Now;

                    entry.Entity.LogEntries.Add(
                        new EntityEvent(
                            _dateTime.Now, …