public ActionResult StartTest(int id)
{
using (var db = new UsersContext())
{
var test = db.Tests.FirstOrDefault(t => t.TestId == id);
if (test == null) {return RedirectToAction("RolePermissions", "Home");}
var userId = WebSecurity.GetUserId(User.Identity.Name);
var actionInProgress = db.Actions.FirstOrDefault(a => a.User.UserId == userId && a.Status == 1);
if (actionInProgress != null || test.Questions.Count == 0)
{
return RedirectToAction("Tests", "Test");
}
var action=new Action
{
User = db.UserProfiles.FirstOrDefault(u => u.UserId == userId),
Test = test,
Status = 1,
TestsInProgres = new List<TestInProgres>()
};
var listQuestion = test.Questions.OrderBy(q => q.Number).ToList();
foreach (var question in listQuestion)
{
action.TestsInProgres.Add(new TestInProgres
{
Action = action,
Question = question,
Submitted = false
});
}
action.DateStart = DateTime.Now;
db.Actions.Add(action);
db.SaveChanges();
}
return RedirectToAction("TestInAction", "Test", new {number = 1});
}
private void RemoveFromProgres(Action action, UsersContext db)
{
db.Actions.Attach(action);
var testsList= action.TestsInProgres.ToList();
foreach (var testInProgres in testsList)
{
action.TestsInProgres.Remove(testInProgres);
db.TestsInProgres.Remove(testInProgres);
}
db.SaveChanges();
}
private void CopyToHistory(Action action, UsersContext db)
{
foreach (var test in action.TestsInProgres)
{
var testToHistory = new TestHistory
{
Action = action,
Number = test.Question.Number,
Question = test.Question,
UserAnswer = test.UserAnswer
};
db.TestHistory.Add(testToHistory);
db.SaveChanges();
}
}
private void CalculateResult(int userId, Action action, UsersContext db)
{
var testResult = new TestResults
{
User = db.UserProfiles.FirstOrDefault(u => u.UserId == userId),
Action = action,
Test = action.Test,
DatePassing = action.DatePassing
};
double pointSum = 0;
foreach (var test in action.TestsInProgres)
{
if (test.UserAnswer != null)
{
switch (test.Question.TestType)
{
case DataConst.CheckedType:
{
pointSum += (CalculateChecked(test));
break;
}
case DataConst.RadioType:
{
pointSum += (CalculateRadio(test));
break;
}
}
}
}
testResult.PercentTaken = Convert.ToInt32((pointSum/action.TestsInProgres.Count)*100);
testResult.Passed = testResult.PercentTaken >= DataConst.PercentLimit;
db.TestsResults.Add(testResult);
db.SaveChanges();
}
private void SubbmitTest(int userId, TestInProgres currentQuestion, Action action, UsersContext db)
{
currentQuestion.Submitted = true;
action.DatePassing = DateTime.Now;
action.Status = 2;
db.SaveChanges();
CalculateResult(userId, action, db);
CopyToHistory(action, db);
RemoveFromProgres(action, db);
}
private ActionResult ExecuteCommand(ResponseAction response, int userId,
Action action, TestInProgres currentQuestion, UsersContext db
)
{
switch (response.Command)
{
case DataConst.Subbmit:
{
SubbmitTest(userId, currentQuestion, action, db);
return RedirectToAction("Results", "Result");
}
case DataConst.Next:
{
if (response.CurrentNumber.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.CurrentNumber + 1});
}
break;
}
case DataConst.Prev:
{
if (response.CurrentNumber.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.CurrentNumber - 1 });
}
break;
}
case DataConst.GoTo:
{
if (response.GoTo.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.GoTo });
}
break;
}
}
ViewBag.WarningMessage = DataConst.WarningErrorMessage;
return RedirectToAction("TestInAction", "Test", new { number = 1 });
}
private ActionResult CheckCurrentQuestion(QuestionInProgresWrapper result, ResponseAction response, int userId,
Action action, TestInProgres currentQuestion, UsersContext db)
{
try
{
if (currentQuestion.Question.TestType == DataConst.CheckedType)
{
SaveResultOfCheckedQuestion(result, currentQuestion, db);
}
if (currentQuestion.Question.TestType == DataConst.RadioType)
{
SaveResultOfRadioQuestion(result, currentQuestion, db);
}
return ExecuteCommand(response, userId, action, currentQuestion, db);
}
catch (Exception)
{
ViewBag.WarningMessage = DataConst.WarningErrorMessage;
return RedirectToAction("TestInAction", "Test", new { number = 1 });
}
}
