public void CreateQuestionAnswersTest()
{
using (var _Transaction = _DbContext.Database.BeginTransaction())
{
// Создаем вопрос.
DAO.Question _Question = new DAO.Question()
{
Text = "CreateQuestionAnswersTest?"
};
_QuestionManagement.CreateQuestion(_Question);
_DbContext.SaveChanges();
// Получаем сущность из БД - если не получить, то EF подумает, что надо создать новую.
_Question = _DbContext.Questions.Include("Answers").Single(x => x.Text == _Question.Text);
// Выбираем ответы для заполнения.
DAO.Answer[] _Answers = new DAO.Answer[] {
_DbContext.Answers.Single(x => x.Text == "Венера"),
_DbContext.Answers.Single(x => x.Text == "Меркурий"),
_DbContext.Answers.Single(x => x.Text == "Земля")
};
_QuestionManagement.AddAnswer(_Question, _Answers);
_DbContext.SaveChanges();
Assert.True(_Question.Answers.Count() == 3);
_Transaction.Rollback();
}
}
public void SetCorrectAnswerTest()
{
using (var _Transaction = _DbContext.Database.BeginTransaction())
{
// Создаем вопрос.
DAO.Question _Question = new DAO.Question()
{
Text = "SetCorrectAnswerTest?"
};
_QuestionManagement.CreateQuestion(_Question);
_DbContext.SaveChanges();
// Получаем сущность из БД - если не получить, то EF подумает, что надо создать новую.
_Question = _DbContext.Questions.Include("Answers").Single(x => x.Text == _Question.Text);
// Выбираем ответы для заполнения.
DAO.Answer[] _Answers = new DAO.Answer[] {
_DbContext.Answers.Single(x => x.Text == "Венера"),
_DbContext.Answers.Single(x => x.Text == "Меркурий"),
_DbContext.Answers.Single(x => x.Text == "Земля")
};
_QuestionManagement.AddAnswer(_Question, _Answers);
_DbContext.SaveChanges();
Assert.DoesNotThrow(() => _QuestionManagement.SetCorrectAnswer(_Question, _DbContext.Answers.Single(x => x.Text == "Венера")));
var _UnCorrectAnswer = _DbContext.Answers.Single(x => x.Text == "101010");
Assert.Throws <Exception>(() => _QuestionManagement.SetCorrectAnswer(_Question, _UnCorrectAnswer));
_Transaction.Rollback();
}
}
public string AnswerTheQuestion(DTO.InterviweeTest DtoInterviweeTest)
{
DTO.InterviweeTest _DtoInterviweeTest = DtoInterviweeTest;
// Прохождение теста.
DAO.InterviweeTests _DaoInterviweeTest = GetInterviweeTestByDtoId(ref _DtoInterviweeTest);
// Текущий вопрос.
DAO.Question _CurrentQuestion = m_QuestionManagement.GetQuestion(_DtoInterviweeTest.CurrentQuestion.Id);
// Ответ на вопрос.
DAO.Answer _Answer = m_AnswerManagement.GetAnswer(_DtoInterviweeTest.CurrentQuestion.SelectedAnswerId);
m_Testing.AnswerToQuestion(_DaoInterviweeTest, _CurrentQuestion, _Answer);
// Определим завершенность теста.
m_Testing.DetermineStatusComplete(_DaoInterviweeTest);
// Прохождение теста - обновление после ответа.
_DaoInterviweeTest = GetInterviweeTestByDtoId(ref _DtoInterviweeTest);
// Вопрос.
_DtoInterviweeTest = GetNextQuestion(_DtoInterviweeTest, _DaoInterviweeTest, _CurrentQuestion);
string _Json = Utils.JsonSerialize(_DtoInterviweeTest);
return(_Json);
}
public string AddAnswerToQuestion(DTO.QuestionAnswers QuestionAnswer)
{
DAO.Question _Question = m_QuestionManagement.GetQuestion(QuestionAnswer.QuestionId);
DAO.Answer _Answer = m_AnswerManagement.GetAnswer(QuestionAnswer.AnswerId);
m_QuestionManagement.AddAnswer(_Question, _Answer);
return(string.Empty);
}
public string SetCorrectAnswer(DTO.QuestionAnswers CorrectAnswer)
{
DAO.Question _Question = m_QuestionManagement.GetQuestion(CorrectAnswer.QuestionId);
DAO.Answer _Answer = m_AnswerManagement.GetAnswer(CorrectAnswer.AnswerId);
m_QuestionManagement.SetCorrectAnswer(_Question, _Answer);
return(string.Empty);
}
/// <summary>
/// Поиск ответа в БД.
/// </summary>
/// <param name="Answer"></param>
/// <returns></returns>
///
private bool IsExist(DAO.Answer Answer)
{
DAO.Answer _FinKey = GetAnswer(Answer.Id);
DAO.Answer _FindText = GetAnswer(Answer.Text);
bool _IsExist = _FinKey != null || _FindText != null;
return(_IsExist);
}
public void GetAnswerTest()
{
using (var _Transaction = _DbContext.Database.BeginTransaction())
{
DAO.Answer _Answer = _AnswerManagement.GetAnswer(5);
Assert.True(_Answer.Id == 5);
_Transaction.Rollback();
}
}
/// <summary>
/// Создать вопрос.
/// </summary>
/// <param name="Text">Текст вопроса.</param>
public void CreateAnswer(DAO.Answer Answer)
{
if (Answer.Text.Replace(" ", "").Length <= 0)
{
return;
}
if (IsExist(Answer))
{
return;
}
_DbContext.Answers.Add(Answer);
_DbContext.SaveChanges();
}
/// <summary>
/// Установить правильный ответ на вопрос.
/// </summary>
public void SetCorrectAnswer(DAO.Question Question, DAO.Answer Answer)
{
DAO.QuestionAnswers _QuestionAnswer = _DbContext.QuestionAnswers.Find(Question.Id, Answer.Id);
if (_QuestionAnswer == null)
{
throw new Exception("Правильный ответ должен содержаться в вопросе.");
}
DAO.QuestionAnswers _CurrentCorrectAnswer = _DbContext.QuestionAnswers.SingleOrDefault(x => x.QuestionId == Question.Id & x.IsCorrect);
if (_CurrentCorrectAnswer != null)
{
_CurrentCorrectAnswer.IsCorrect = false;
}
_QuestionAnswer.IsCorrect = true;
_DbContext.SaveChanges();
}
public string CreateAnswerToQuestion(DTO.NewAnswerToQuestion NewAnswerToQuestion)
{
DAO.Answer _Answer = new DAO.Answer()
{
Text = NewAnswerToQuestion.AnswerText
};
DAO.Question _Question = m_QuestionManagement.GetQuestion(NewAnswerToQuestion.QuestionId);
m_AnswerManagement.CreateAnswer(_Answer);
_Answer = m_AnswerManagement.GetAnswer(NewAnswerToQuestion.AnswerText);
if (_Answer != null)
{
m_QuestionManagement.AddAnswer(_Question, _Answer);
}
return(string.Empty);
}
public void CreateAnswerTest()
{
using (var _Transaction = _DbContext.Database.BeginTransaction())
{
DAO.Answer _Answer = new DAO.Answer()
{
Text = "wtf?"
};
Assert.DoesNotThrow(() => _AnswerManagement.CreateAnswer(_Answer));
Assert.DoesNotThrow(() => _AnswerManagement.CreateAnswer(_Answer));
_DbContext.SaveChanges();
// Исключаем повторное добавление.
var _Count = _DbContext.Answers.Where(x => x.Text == _Answer.Text).Count();
Assert.True(_Count == 1);
_Transaction.Rollback();
}
}
/// <summary>
/// Добавить вариант ответа в вопрос.
/// </summary>
/// <param name="Question"></param>
/// <param name="Answer"></param>
public void AddAnswer(DAO.Question Question, DAO.Answer Answer)
{
if (Question.Answers.Where(x => x.AnswerId == Answer.Id).Count() == 1)
{
return;
}
if ((Question.Answers.Count() >= 3))
{
throw new Exception("Вопрос может содержать не более 3 вариантов ответа.");
}
DAO.QuestionAnswers _QuestionAnswers = new DAO.QuestionAnswers()
{
AnswerId = Answer.Id,
QuestionId = Question.Id,
IsCorrect = false
};
_DbContext.QuestionAnswers.Add(_QuestionAnswers);
_DbContext.SaveChanges();
}
/// <summary>
/// Ответить на вопрос.
/// </summary>
/// <param name="InterviweeTestId">Прохождение теста.</param>
/// <param name="QuestionId">Вопрос.</param>
/// <param name="AnswerId">Ответ.</param>
public void AnswerToQuestion(DAO.InterviweeTests InterviweeTest, DAO.Question Question, DAO.Answer Answer)
{
// Если ответ на такой вопрос уже был - выходим.
var ExistAnswer = _DbContext.TestingResults.Where(x =>
x.InterviweeTestsId == InterviweeTest.Id
& x.QuestionId == Question.Id).Count();
if (ExistAnswer > 0)
{
return;
}
// Определить ответ.
DAO.TestingResult _TestingResult = new DAO.TestingResult()
{
InterviweeTestsId = InterviweeTest.Id,
QuestionId = Question.Id,
AnswerId = Answer.Id,
IsCorrect = _DbContext.QuestionAnswers.Where(x => x.QuestionId == Question.Id & x.IsCorrect).FirstOrDefault()?.AnswerId == Answer.Id
};
// Добавить в результаты теста.
_DbContext.TestingResults.Add(_TestingResult);
_DbContext.SaveChanges();
}
