public async Task <IActionResult> NewTrainee(NewTraineeViewModel model)
        {
            model.DateOfBirth = DateTime.ParseExact(model.StrDateOfBirth, "dd/MM/yyyy", CultureInfo.InvariantCulture);
            var trainer = await _userManager.GetUserAsync(User);

            var user = new ApplicationUser {
                UserName    = model.Email, Email = model.Email,
                Name        = model.Name, Surname = model.Surname,
                PhoneNumber = model.Phone, City = model.City,
                GymId       = trainer.GymId
            };

            if (model.Image != null && model.Image.Length > 0)
            {
                using (var memoryStream = new MemoryStream())
                {
                    await model.Image.CopyToAsync(memoryStream);

                    user.Image = memoryStream.ToArray();
                }
            }

            var result = await _userManager.CreateAsync(user, model.Password);

            if (result.Succeeded)
            {
                var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);

                var callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme);
                await _emailSender.SendEmailConfirmationAsync(model.Email, callbackUrl);

                Trainee trainee = new Trainee
                {
                    Birthday  = model.DateOfBirth,
                    EntryDate = DateTime.Today,
                    Gender    = model.Gender,
                    TrainerId = trainer.Id,
                    TraineeId = _traineeRepository.GetUserId(model.Email, model.Name, model.Surname)
                };
                _traineeRepository.CreateTrainee(trainee);
                TraineeMeasurements traineeMeasurements = new TraineeMeasurements
                {
                    Weight    = model.Weight,
                    Height    = model.Height,
                    FatRatio  = model.FatRatio,
                    Date      = DateTime.Today,
                    TraineeId = _traineeRepository.GetUserId(model.Email, model.Name, model.Surname)
                };
                _traineeMeasurementsRepository.CreateTraineeMeasurements(traineeMeasurements);
                return(RedirectToAction("Trainees", "Home"));
            }
            return(View(model));
        }