public async Task <ActionResult> UnenrollFrom([Bind(Include = "enrolId,studyId")] UnenrollModel unenroll)
        {
            IReadWriteRepository <ServiceData.Models.StudyEnrolment> _enrolRepository = new StudyEnrolmentRepository();
            await _enrolRepository.Delete(unenroll.enrolId);

            return(RedirectToAction("Details", new { id = unenroll.studyId }));
        }
        public async Task <ActionResult> Details([Bind(Include = "Email,Id")] AddParticipantStruct newPart)
        {
            IReadWriteRepository <ServiceData.Models.User> _userRepository = new UserRepository();

            ServiceData.Models.User res =
                await _userRepository.Search(u => u.Email == newPart.Email).FirstOrDefaultAsync();

            IReadWriteRepository <ServiceData.Models.Study> _studyRepository = new StudyRepository();

            ServiceData.Models.Study study = _studyRepository.GetById(newPart.Id);

            if (study == null)
            {
                return(RedirectToAction("Index"));
            }
            else if (res != null &&
                     study.Manager.Email == User.Identity.Name &&
                     !study.StudyEnrolments.Any(en => en.UserId == res.Id))
            {
                Models.StudyEnrolment enrol = new Models.StudyEnrolment
                {
                    CreatedAt = DateTime.UtcNow,
                    Study     = Models.Study.ToAppModel(study, false),
                    StudyId   = study.Id,
                    Enrolled  = true,
                    User      = Models.User.ToAppModel(res),
                    UserId    = res.Id
                };

                IReadWriteRepository <ServiceData.Models.StudyEnrolment> _enrolRepository = new StudyEnrolmentRepository();
                var serviceMod = Models.StudyEnrolment.ToServiceModel(enrol, true, true);
                var finalRes   = _enrolRepository.Insert(serviceMod);
                return(RedirectToAction("Details", new { id = study.Id }));
            }

            return(RedirectToAction("Details", new { id = study?.Id }));
        }