public FieldDto Get(EntityDto <int> input)
        {
            var query  = _fieldRepository.GetAllIncluding(f => f.Device).Where(f => f.Id == input.Id);
            var entity = query.FirstOrDefault();

            if (entity.IsNullOrDeleted())
            {
                throw new ApplicationException("该field不存在或已被删除");
            }
            return(ObjectMapper.Map <FieldDto>(entity));
        }