public async Task <IActionResult> Test(TestBigModel model)
{
int courseId = model.TestQuestions.FirstOrDefault().Question.CourseId;
int totalQuestions = model.TestQuestions.Count();
int totalTrueAnswers = 0;
foreach (var item in model.TestQuestions)
{
int trueAnswer = await _context.Answer.Where(x => x.QuestionId == item.Question.Id && x.Verity == true).Select(x => x.Id).FirstOrDefaultAsync();
if (item.Question.SelectedAnswer == trueAnswer)
{
totalTrueAnswers = totalTrueAnswers + 1;
}
}
double percent = ((double)totalTrueAnswers / totalQuestions) * 100;
TestResult testResultModel = new TestResult();
testResultModel.CourseId = courseId;
testResultModel.Percent = percent;
//zobrazeni vysledku testu
CourseUser courseToAddResult = await _context.CourseUser.Where(x => x.CourseId == courseId).FirstOrDefaultAsync();
courseToAddResult.ResultPercent = percent;
courseToAddResult.NumberOfTests = courseToAddResult.NumberOfTests + 1;
_context.Update(courseToAddResult);
await _context.SaveChangesAsync();
if (percent >= 80)
{
courseToAddResult.Finished = true;
_context.Update(courseToAddResult);
await _context.SaveChangesAsync();
return(View("TestSuccess", testResultModel));
}
return(View("TestFailure", testResultModel));
}
// GET: Tests/Edit/5
public async Task <IActionResult> Test(int?id)
{
Random random = new Random();
TestBigModel model = new TestBigModel();
List <Question> AllQuestions = await _context.Question.Include(x => x.Answers).Where(x => x.Course.Id == id).ToListAsync(); //Všechny otázky, které náleží danému kurzu includujeme také answers
List <TestQuestion> testQuestions = new List <TestQuestion>(); //Vytvoříme si zatím prázdný list Test Questions a později ho otázku po otázce inicializujeme
for (int i = 0; i < AllQuestions.Count; i++) //Pro každou z otázek, které se nachází v Listu AllQuestions
{
TestQuestion testQuestion = new TestQuestion(); //Dočasý objekt TestQuestion existující pouze ve scope tohoto foreach loopu (při každém scope se vytváří znovu a znovu, dá se říct že se resetuje)
testQuestion.Question = AllQuestions[i];
testQuestion.Answers = AllQuestions[i].Answers.ToList();
testQuestion.Answers.Shuffle();
testQuestions.Add(testQuestion); //Nakonec po inicializaci všech vlastností vložíme dočasný objekt do listu testQuestions
}
model.TestQuestions = testQuestions;
model.TestQuestions.Shuffle();
return(View(model)); //Nakonec list odesíláme do View jako model
}