entity-framework – EF Core：内置Created和Edited时间戳

>定义了一个接口 – 我的模型可以继承的TimeStampedModel要求它们拥有我想要的时间戳：

public interface TimeStampedModel
{
    DateTime CreatedAt {get; set;}
    DateTime LastModified {get; set;}
}

>覆盖我的DbContext上的SaveChanges以查找新的或修改的模型,并适当地更新它们的时间戳：

public override int SaveChanges()
{
    var newEntities = this.ChangeTracker.Entries()
        .Where(
            x => x.State == EntityState.Added &&
            x.Entity != null &&
            x.Entity as TimeStampedModel != null
            )
        .Select(x => x.Entity as TimeStampedModel);

    var modifiedEntities = this.ChangeTracker.Entries() 
        .Where(
            x => x.State == EntityState.Modified &&
            x.Entity != null &&
            x.Entity as TimeStampedModel != null
            )
        .Select(x => x.Entity as TimeStampedModel);

    foreach (var newEntity in newEntities)
    {
        newEntity.CreatedAt = DateTime.UtcNow;
        newEntity.LastModified = DateTime.UtcNow;
    }

    foreach (var modifiedEntity in modifiedEntities)
    {
        modifiedEntity.LastModified = DateTime.UtcNow;
    }

    return base.SaveChanges();
}

谁有更好的解决方案？