public IActionResult edit(long testimonial_id)
 {
     try
     {
         var            testimonial = _testimonialRepo.getById(testimonial_id);
         TestimonialDto dto         = _mapper.Map <TestimonialDto>(testimonial);
         return(View(dto));
     }
     catch (Exception ex)
     {
         AlertHelper.setMessage(this, ex.Message, messageType.error);
         return(RedirectToAction("index"));
     }
 }
        public void delete(long testimonial_id)
        {
            try
            {
                _transactionManager.beginTransaction();
                var testimonial = _testimonialRepo.getById(testimonial_id);

                if (testimonial == null)
                {
                    throw new ItemNotFoundException($"Testimonial with id {testimonial_id} doesnot exist.");
                }

                string oldImage = testimonial.image_name;
                _testimonialRepo.delete(testimonial);

                deleteImage(oldImage);
                _transactionManager.commitTransaction();
            }
            catch (Exception)
            {
                _transactionManager.rollbackTransaction();
                throw;
            }
        }