// GET: Teacher
public ActionResult Index()
{
TeacherIndexViewModel vm = new TeacherIndexViewModel();
LogiraniKorisnikVM k = Autentifikacija.GetLogiraniKorisnik(HttpContext);
vm.username = k.username;
vm.Name = k.Ime + ' ' + k.Prezime;
vm.QuizSessions = db.QuizSessions.Include(x => x.Quiz).Where(x => x.UserId == k.Id).Select(y => new TeacherIndexViewModel.QuizSessionInfo
{
Id = y.Id,
QuizName = y.Quiz.Name,
QuizvId = y.Quiz.vId,
StartDate = y.StartedAt.Value,
ResultPercentage = ((int)(((float)y.CorrectAnswers) / (y.CorrectAnswers + y.WrongAnswers) * 100)).ToString() + "%",
QuizDuration = DbFunctions.DiffMinutes(y.StartedAt, y.FinishedAt).ToString()
}).OrderByDescending(x => x.StartDate).ToList();
vm.AvailableQuizes = db.Quizes.Select(x => new TeacherIndexViewModel.QuizInfo
{
vId = x.vId,
CreatedAt = x.CreatedAt,
CreatedBy = x.Teacher.Name,
Name = x.Name,
QuestionCount = x.Questions.Count
}).ToList();
return(View(vm));
}
public void OnAuthorization(AuthorizationContext filterContext)
{
LogiraniKorisnikVM k = Autentifikacija.GetLogiraniKorisnik(filterContext.HttpContext);
if (k == null)
{
filterContext.HttpContext.Response.Redirect("/");
}
}
public static void PokreniNovuSesiju(LogiraniKorisnikVM korisnik, HttpContextBase context, bool zapamtiPassword)
{
context.Session.Add(LogiraniKorisnik, korisnik);
if (zapamtiPassword)
{
HttpCookie cookie = new HttpCookie("_mvc_session", korisnik != null ? korisnik.Id.ToString() : "");
cookie.Expires = DateTime.Now.AddDays(30);
context.Response.Cookies.Add(cookie);
}
}
public static bool Login(string username, string password, HttpContextBase httpContext)
{
using (Context ctx = new Context())
{
var user = ctx.Users.FirstOrDefault(x => x.username == username);
if (user != null)
{
if (Crypto.VerifyHashedPassword(user.passwordHash, password + user.passwordSalt))
{
LogiraniKorisnikVM k = new LogiraniKorisnikVM();
k.Id = user.Id;
k.username = user.username;
PokreniNovuSesiju(k, httpContext, true);
return(true);
}
}
}
return(false);
}
public static LogiraniKorisnikVM GetLogiraniKorisnik(HttpContextBase context)
{
LogiraniKorisnikVM korisnik = (LogiraniKorisnikVM)context.Session[LogiraniKorisnik];
return(korisnik);
}
