public QCEvent CreateQCEvent(CreateQCEventModel model, DateTime createdTime)
        {
            var entity = model.ToDest();

            entity.CreatedTime = createdTime;
            entity.SideImages  = model.SideImages == null ? null :
                                 JsonConvert.SerializeObject(model.SideImages);
            PrepareCreate(entity);
            return(context.QCEvent.Add(entity).Entity);
        }