/// <summary>
        /// 编辑知识库标签
        /// </summary>
        public virtual async Task UpdateKonwledgeTagAsync(KonwledgeTagEditDto input)
        {
            //TODO:更新前的逻辑判断,是否允许更新

            var entity = await _KonwledgeTagRepository.GetAsync(input.Id.Value);

            input.MapTo(entity);

            await _KonwledgeTagRepository.UpdateAsync(entity);
        }
        /// <summary>
        /// 新增知识库标签
        /// </summary>
        public virtual async Task <KonwledgeTagEditDto> CreateKonwledgeTagAsync(KonwledgeTagEditDto input)
        {
            //TODO:新增前的逻辑判断,是否允许新增

            var entity = input.MapTo <KonwledgeTag>();

            entity = await _KonwledgeTagRepository.InsertAsync(entity);

            return(entity.MapTo <KonwledgeTagEditDto>());
        }
        /// <summary>
        /// 通过Id获取知识库标签信息进行编辑或修改
        /// </summary>
        public GetKonwledgeTagForEditOutput GetKonwledgeTagForEdit(NullableIdDto <long> input)
        {
            var output = new GetKonwledgeTagForEditOutput();

            KonwledgeTagEditDto KonwledgeTagEditDto;

            if (input.Id.HasValue)
            {
                var entity = _KonwledgeTagRepository.Get(input.Id.Value);
                KonwledgeTagEditDto = entity.MapTo <KonwledgeTagEditDto>();
            }
            else
            {
                KonwledgeTagEditDto = new KonwledgeTagEditDto();
            }

            output.KonwledgeTag = KonwledgeTagEditDto;
            return(output);
        }