问实体框架7 SaveChanges

EN

public override int SaveChanges()
{
    SetModifiedInformation();
    return base.SaveChanges();
}

public override async Task<int> SaveChangesAsync( CancellationToken cancellationToken = new CancellationToken() )
{
    SetModifiedInformation();
    return await base.SaveChangesAsync( cancellationToken );
}

private void SetModifiedInformation()
{
    foreach (var entityEntry in ChangeTracker.Entries())
    {
        var entity = entityEntry.Entity as ChangeTracking;
        if (entity != null)
        {
            entity.ModifiedBy = "Get User Here";
            entity.ModifiedTime = DateTime.Now;
        }
    }
}