/// <summary>
/// Save the entity record. If it has a valid Id it will be updated, otherwise new record created.
/// </summary>
/// <param name="bag"></param>
/// <param name="entity"></param>
public static void Save(this IBag bag, Entity entity)
{
if (entity.Id.Equals(Guid.Empty))
{
bag.Create(entity);
}
else
{
bag.Update(entity);
}
}