Дипломная работа: Автоматизация процесса контроля знаний учащихся ГОУ СОШ №31

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test.QuestionsPerformedCount = test.QuestionsPerformedCount == null ? 0 :

test.QuestionsPerformedCount;

if (availableQuestions.Count() == 0 || (userQuestions.Count() != 0 &&

userQuestions.Count() == test.QuestionsPerformedCount))

return null;

int idQuestion = availableQuestions.OrderBy(item =>

item.Id).FirstOrDefault().Id;

int numberQuestion = userQuestions.Count() + 1;

UserQuestion userQuestion = new UserQuestion

{

IdUserTest = idUserTest,

IdQuestion = idQuestion,

Number = numberQuestion,

};

using (var transaction = storage.BeginTransaction())

{

try

{

await storage.GetRepository<UserQuestion>().Create(userQuestion);

transaction.Commit();

}

catch (Exception ex)

{

transaction.Rollback();

throw new Exception(ex.Message);

}

return await GetQuestionAnswerByIdUserQuestion(userQuestion.Id);

}

public async Task<bool> SetAnswerRunTestQuestion(QuestionAnswerDTO

questionAnswerDTO)

{

if(questionAnswerDTO.SelectedAnswer.Count() == 0)

throw new

ArgumentNullException(nameof(questionAnswerDTO.SelectedAnswer));

IEnumerable<Answer> answers = await

storage.GetRepository<Answer>().Get(item =>

item.IdQuestion == questionAnswerDTO.IdQuestion);

IEnumerable<int> rightAnswerIds = answers.Where(item => item.IsRight ==

true).Select(item => item.Id);

int CorrectAnswersCount = 0;

foreach (int item in rightAnswerIds)

{

if (questionAnswerDTO.SelectedAnswer.Contains(item))

CorrectAnswersCount++;

}

decimal userQuestionResult = (decimal)CorrectAnswersCount /

rightAnswerIds.Count();

using (var transaction = storage.BeginTransaction())

{

try

{

UserQuestion userQuestion = await

storage.GetRepository<UserQuestion>().FindById(questionAnswerDTO.IdUserQues

tion);

userQuestion.Result = userQuestionResult;

await storage.GetRepository<UserQuestion>().Update(userQuestion);

foreach (int item in questionAnswerDTO.SelectedAnswer)

{

UserAnswer userAnswer = new UserAnswer

{

IdUserQuestion = questionAnswerDTO.IdUserQuestion,

IdAnswer = item

};

await storage.GetRepository<UserAnswer>().Create(userAnswer);

}

transaction.Commit();

}

catch (Exception ex)

{

transaction.Rollback();

throw new Exception(ex.Message);

}

return true;

}

100

public async Task<UserTestAdvancedDTO> EndExecuteTest(int idUserTest)

{

IEnumerable<UserQuestion> userQuestions = await

storage.GetRepository<UserQuestion>().Get(item =>

item.IdUserTest == idUserTest);

UserTest userTest = await

storage.GetRepository<UserTest>().FindById(idUserTest);

userTest.EndDate = DateTime.Now;

userTest.PointsСount = (decimal)userQuestions.Sum(item => item.Result) /

userQuestions.Count() * 100;

using (var transaction = storage.BeginTransaction())

{

try

{

await storage.GetRepository<UserTest>().Update(userTest);

transaction.Commit();

}

catch (Exception ex)

{

transaction.Rollback();

throw new Exception(ex.Message);

}

Test test = await storage.GetRepository<Test>().FindById(userTest.IdTest);

IEnumerable<UserInfo> usersInfo = await

storage.GetRepository<UserInfo>().Get(item => item.IdUser == userTest.IdUser);

UserInfo userInfo = usersInfo.FirstOrDefault();

UserTestAdvancedDTO userTestAdvancedDTO = new

UserTestAdvancedDTO

{

Id = userTest.Id,

IdTest = userTest.IdTest,

IdUser = userTest.IdUser,

StartDate = userTest.StartDate,

EndDate = userTest.EndDate,

AttemptNumber = userTest.AttemptNumber,

PointsСount = userTest.PointsСount,

TestName = test.Name,

UserFIO = $"{userInfo.Surname} {userInfo.Name}

{userInfo.Patronymic}"

101

};

return userTestAdvancedDTO;

}

private async Task<QuestionAnswerDTO>

GetQuestionAnswerByIdUserQuestion(int idUserQuestion)

{

UserQuestion userQuestion = await

storage.GetRepository<UserQuestion>().FindById(idUserQuestion);

Question question = await

storage.GetRepository<Question>().FindById(userQuestion.IdQuestion);

IEnumerable<Answer> answers = await

storage.GetRepository<Answer>().Get(item =>

item.IdQuestion == userQuestion.IdQuestion &&

item.IsDeleted == false);

return new QuestionAnswerDTO

{

IdUserQuestion = userQuestion.Id,

IdUserTest = userQuestion.IdUserTest,

IdQuestion = userQuestion.IdQuestion,

Number = userQuestion.Number,

QuestionText = question.Text,

CorrectAnswersCount = answers.Where(item => item.IsRight ==

true).Count(),

Answers = mapper.Map<IEnumerable<AnswerDTO>>(answers)

};

}

@using KCS.UI.Web.Models.Test

@model List<TestViewModel>

ViewData["Title"] = "Тесты";

Layout = "~/Views/Shared/_Layout.cshtml";

int rowNumber = 0;

}

<h2 style="margin-bottom: 0; padding: 5px 10px;">Тесты</h2>

102

<nav class="navbar navbar-light bg-light justify-content-between" style="padding:

5px 10px 5px 0;">

<a id="tool-strip-create-button" class="nav-link tool-strip-button"

style="padding-right: 0;" asp-controller="Test" asp-action="Create">

<span class="d-sm-inline-block d-none">Создать</span>

</a>

<a id="tool-strip-edit-button" class="nav-link tool-strip-button disabled"

style="padding-right: 0;">

<span class="d-sm-inline-block d-none">Редактировать</span>

</a>

<a id="tool-strip-details-button" class="nav-link tool-strip-button disabled"

style="padding-right: 0;">

<span class="d-sm-inline-block d-none">Подробнее</span>

</a>

<a id="tool-strip-delete-button" class="nav-link tool-strip-button disabled"

style="padding-right: 0;">

<span class="d-sm-inline-block d-none">Удалить</span>

</a>

<a id="tool-strip-additional-button" class="nav-link tool-strip-button disabled"

style="padding-right: 0;">

<span class="d-sm-inline-block d-none">Вопросы теста</span>

</a>

</nav>

<div>

<button class="btn"><span class="fas fa-filter"></span>Фильтр</button>

</div>

</nav>

<tr>

<th scope="col" class="align-middle" style="width: 65%;">Название</th>

<th scope="col" class="align-middle">Доступен для выполнения</th>

</tr>

</thead>

<tbody>

Источник: https://baza.diplomsite.ru/previewfile/2098

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