public async Task <OrganizationDto> UpdateAsync(Guid id, CreateUpdateOrganizationDto dto)
        {
            var entity = await _repository.GetAsync(id);

            entity.UpdateTitle(dto.Title);
            await _repository.UpdateAsync(entity, true);

            return(ObjectMapper.Map <OrganizationUnit, OrganizationDto>(entity));
        }
        public async Task <OrganizationDto> CreateAsync(CreateUpdateOrganizationDto dto)
        {
            if (dto.ParentId.HasValue)
            {
                //添加下级节点
                var parent = await _repository.GetAsync(dto.ParentId.Value);

                parent.AddChildrenNode(dto.Title);
                await _repository.UpdateAsync(parent, true);

                return(ObjectMapper.Map <OrganizationUnit, OrganizationDto>(parent));
            }
            else
            {
                var rootCount = _repository.Count(b => b.ParentId == null);
                var id        = GuidGenerator.Create();
                //添加根节点
                var rootNode = new OrganizationUnit(id, null, dto.Title, rootCount);
                await _repository.InsertAsync(rootNode, true);

                return(ObjectMapper.Map <OrganizationUnit, OrganizationDto>(rootNode));
            }
        }