// Course topics list.
public async Task <ActionResult> CourseTopics(int?id)
{
try
{
// I.Checks.
// Check id.
if (!int.TryParse(id.ToString(), out int intId))
{
return(RedirectToAction("Index"));
}
// Get courseDTO object.
CourseDTO courseDTO = await CourseService.GetAsync(intId);
if (courseDTO == null)
{
return(RedirectToAction("Index"));
}
// II. AutoMapper Setup.
var config = new MapperConfiguration(cfg =>
{
cfg.CreateMap <TestResultDTO, TestResultViewModel>()
.ForMember("Id", opt => opt.MapFrom(tr => tr.TestResultId))
.ForMember("TestTitle", opt => opt.MapFrom(tr => tr.TestResultDetails.FirstOrDefault().Question.Topic.TopicTitle));
cfg.CreateMap <TestResultDetailDTO, TestResultDetailViewModel>()
.ForMember("Question", opt => opt.MapFrom(trd => trd.Question.QuestionText))
.ForMember("Topic", opt => opt.MapFrom(trd => trd.Question.Topic.TopicTitle));
cfg.CreateMap <TopicDTO, TopicViewModel>()
.ForMember("ID", opt => opt.MapFrom(obj => obj.TopicId))
.ForMember("Name", opt => opt.MapFrom(obj => obj.TopicTitle));
});
IMapper iMapper = config.CreateMapper();
// III. Set ViewBag properties.
// Get a role name for the current user.
string currentUserId = System.Web.HttpContext.Current.User.Identity.GetUserId();
if (currentUserId != null)
{
ViewBag.RoleName = UserService.FindUserRoleById(currentUserId);
}
else
{
ViewBag.RoleName = null;
}
// Check: is this user subscribed to this course?
SubscriptionDTO activeSubscription = SubscriptionService.Find(obj =>
obj.UserProfileId == currentUserId &&
obj.CourseId == intId &&
(DateTime.Now - obj.StartDate < TimeSpan.FromDays(obj.SubscriptionPeriod)))
.FirstOrDefault();
ViewBag.IsInApproving = false;
ViewBag.IsSubscribed = false;
if (activeSubscription != null)
{
if (activeSubscription.IsApproved)
{
ViewBag.IsSubscribed = true;
}
else
{
ViewBag.IsInApproving = true;
}
}
ViewBag.ParentId = intId;
ViewBag.CourseName = courseDTO.CourseTitle;
ViewBag.ParentParentId = courseDTO.SpecialityId;
IEnumerable <TestResultDTO> testResultDTOs = TestResultService.Find(tr => tr.UserProfileId == currentUserId &&
tr.IsTopicTest);
IEnumerable <TestResultViewModel> userTestResults = iMapper.Map <IEnumerable <TestResultDTO>, IEnumerable <TestResultViewModel> >(testResultDTOs);
ViewBag.UserTestResults = userTestResults;
ViewBag.AttemptsNumber = courseDTO.AttemptsNumber;
// IV. Get data for a view.
List <TopicDTO> source = TopicService.Find(dto => dto.CourseId == intId).OrderBy(o => o.TopicNumber).ToList();
IEnumerable <TopicViewModel> topicOrderedList = iMapper.Map <IEnumerable <TopicDTO>, IEnumerable <TopicViewModel> >(source);
// VI.
return(View(topicOrderedList));
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
