/// <summary>
        /// Update an entity.
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public TestamentExtractionViewModel Update(TestamentExtractionViewModel model)
        {
            this.ThrowExceptionIfExist(model);

            var entity = model.ToEntity();

            entity = this._TestamentExtractionRepository.Update(entity);

            TestamentExtraction entityAr = entity.ChildTranslatedTestamentExtractions.Where(x => x.Language == Language.Arabic).FirstOrDefault();

            entityAr.Description = model.DescriptionAr;
            entityAr.Name        = model.NameAr;
            this._TestamentExtractionRepository.Update(entityAr);
            TestamentExtraction entityEn = entity.ChildTranslatedTestamentExtractions.Where(x => x.Language == Language.English).FirstOrDefault();

            entityEn.Description = model.DescriptionEn;
            entityEn.Name        = model.NameEn;
            this._TestamentExtractionRepository.Update(entityEn);

            #region Commit Changes
            this._unitOfWork.Commit();
            #endregion

            model = entity.ToModel();
            return(model);
        }
        public void ThrowExceptionIfExist(TestamentExtraction model)
        {
            ConditionFilter <TestamentExtraction, long> condition = new ConditionFilter <TestamentExtraction, long>
            {
                Query = (entity =>
                         entity.Name == model.Name &&
                         entity.Id != model.Id)
            };
            var existEntity = this._TestamentExtractionRepository.Get(condition).FirstOrDefault();

            if (existEntity != null)
            {
                throw new ItemAlreadyExistException();
            }
        }
        /// <summary>
        /// Add an entity.
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public TestamentExtractionViewModel Add(TestamentExtractionViewModel model)
        {
            try
            {
                var entity = model.ToEntity();
                entity = this._TestamentExtractionRepository.Add(entity);
                var entityAr = new TestamentExtraction
                {
                    //Id = entity.Id,
                    Description = model.DescriptionAr,
                    Name        = model.NameAr,
                    Language    = Language.Arabic
                };
                this.ThrowExceptionIfExist(entityAr);
                entity.ChildTranslatedTestamentExtractions.Add(entityAr);
                this._TestamentExtractionRepository.Add(entityAr);

                var entityEn = new TestamentExtraction
                {
                    //Id = entity.Id,
                    Description = model.DescriptionEn,
                    Name        = model.NameEn,
                    Language    = Language.English
                };
                this.ThrowExceptionIfExist(entityEn);
                entity.ChildTranslatedTestamentExtractions.Add(entityEn);
                this._TestamentExtractionRepository.Add(entityEn);


                #region Commit Changes
                this._unitOfWork.Commit();
                #endregion

                model = entity.ToModel();
                return(model);
            }
            catch (Exception ex)
            {
                throw;
            }
        }