public IActionResult Start(string quizId)
{
var quiz = store.Quizzes.FirstOrDefault(f => f.Id.Equals(quizId, StringComparison.OrdinalIgnoreCase) || f.Title.Replace(" ", "-").Equals(quizId, StringComparison.OrdinalIgnoreCase));
if (quiz == null)
{
logger.LogWarning("Can't find exam with id " + quizId);
return(View("Error", new ErrorViewModel {
RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier
}));
}
var model = new PresentExamModel
{
Id = Guid.NewGuid(),
Name = User.FindFirst("name")?.Value,
Email = User.FindFirst("email")?.Value,
MemberId = User.FindFirst("memberId")?.Value,
Started = DateTimeOffset.UtcNow,
Quiz = quiz
};
return(View(model));
}
public async Task <IActionResult> Finish(string quizId, PresentExamModel formModel, [FromServices] IConfiguration configuration, [FromServices] IMessagingApi messaging, [FromServices] IDatabaseApi database)
{
var quiz = store.Quizzes.FirstOrDefault(f => f.Id.Equals(quizId, StringComparison.OrdinalIgnoreCase) || f.Title.Replace(" ", "-").Equals(quizId, StringComparison.OrdinalIgnoreCase));
if (quiz == null)
{
logger.LogWarning("Can't find exam with id " + quizId);
return(View("Error", new ErrorViewModel {
RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier
}));
}
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var numWrong = 0;
var incorrect = new List <string>();
foreach (var question in quiz.Questions)
{
if (Request.Form.TryGetValue(question.Id + "[]", out StringValues postedAnswer))
{
// user answered the question
var expected = question.Answers.Where(f => f.Correct).Select(f => f.Id.ToLowerInvariant()).ToArray();
var actual = postedAnswer.Select(f => f.ToLowerInvariant()).ToArray();
if (expected.Length != actual.Length)
{
incorrect.Add(question.Text);
numWrong++;
continue;
}
for (int i = 0; i < expected.Length; i++)
{
if (expected[i] != actual[i])
{
incorrect.Add(question.Text);
numWrong++;
continue;
}
}
}
else
{
incorrect.Add(question.Text);
// user did not answer the question
numWrong++;
}
}
var model = new TestResultsModel
{
Id = new Guid(Request.Form["Id"].Single()),
Name = User.FindFirst("name")?.Value ?? Request.Form["Name"],
Email = User.FindFirst("email")?.Value ?? Request.Form["Email"],
MemberId = User.FindFirst("memberId")?.Value,
Title = quiz.Title,
QuizId = quiz.Id,
Score = quiz.Questions.Count - numWrong,
Possible = quiz.Questions.Count,
Completed = DateTimeOffset.Now,
Incorrect = incorrect
};
var passing = configuration.GetValue <float?>("passing_score") ?? 80;
model.Percentage = model.Score / (float)model.Possible * 100.0f;
model.Passed = model.Percentage >= passing;
model.Duration = model.Completed - DateTimeOffset.Parse(Request.Form["Started"].Single());
if (model.Passed)
{
var cert = await certificateStore.AddCertificate(new CertificateEntity
{
RowKey = model.Id.ToString().ToLowerInvariant(),
Completed = model.Completed,
Name = model.Name,
Title = model.Title
});
// Send email to user
string message = $"Full Name: {model.Name}<br/>Email: {model.Email}<br/><br/>Course: {model.Title}<br/>Results: {model.Score} out of {model.Possible}.<br/><br/>A certificate of completion is attached.<br/><br/><br/>--<br/>KCSARA Training Committee<br/>[email protected]";
await messaging.SendEmail(model.Email, "KCSARA Online Exam Results", message, new List <MessageAttachment>
{
new MessageAttachment {
Base64 = Convert.ToBase64String(cert.Data), FileName = cert.FileName, MimeType = cert.MimeType
}
});
if (Guid.TryParse(quiz.RecordsId, out Guid courseId) && Guid.TryParse(model.MemberId, out Guid memberId))
{
var record = await database.CreateTrainingRecord(new TrainingRecord
{
Completed = model.Completed,
Course = new NameIdPair {
Id = courseId
},
Member = new NameIdPair {
Id = memberId
},
Comments = $"{configuration["siteRoot"]?.TrimEnd('/') ?? "https://exams.kcsara.org"}/certificate/{model.Id}"
});
}
}
return(View(model));
}