/// <summary>
/// 根据规则获取相应题目
/// </summary>
/// <returns></returns>
public ExaminationOutPut GetQuestions()
{
ExaminationOutPut questionsResult = new ExaminationOutPut();
var single = _questionType.FirstOrDefault(q => q.Name == "单选"); //单选题数量
var multiple = _questionType.FirstOrDefault(q => q.Name == "多选"); //多选题数量
var judge = _questionType.FirstOrDefault(q => q.Name == "判断"); //判断题数量
List <Question> questionList = _question.GetAll().Where(q => q.QuestionTypeId == single.Id).OrderBy(q => Guid.NewGuid()).Take(single.Number).ToList();
questionList.AddRange(_question.GetAll().Where(q => q.QuestionTypeId == multiple.Id).OrderBy(q => Guid.NewGuid()).Take(multiple.Number).ToList());
questionList.AddRange(_question.GetAll().Where(q => q.QuestionTypeId == judge.Id).OrderBy(q => Guid.NewGuid()).Take(judge.Number).ToList());
questionsResult.QuestionItems = questionList.Select(item =>
{
return(new QuestionStringId()
{
StrId = item.Id.ToString(),
Content = item.Content,
Options = item.Options,
AnswerNote = item.AnswerNote,
QuestionType = item.QuestionTypeId == single.Id ? "单选" : item.QuestionTypeId == multiple.Id ? "多选" : "判断"
});
}).ToList();
return(questionsResult);
}
/// <summary>
/// 考试接口
/// </summary>
/// <param name="dayOrWeek"></param>
/// <returns></returns>
public Result <ExaminationOutPut> TestStart(string dayOrWeek)
{
string examinationId = string.Empty;//考试编号
if (dayOrWeek == "day")
{
if (_examination.Any(e => e.StartTime >= DateTime.Now.Date && e.EndTime > DateTime.Now && e.DayOrWeek == "day"))
{
examinationId = _examination.FirstOrDefault(e => e.StartTime >= DateTime.Now.Date && e.EndTime > DateTime.Now && e.DayOrWeek == "day").Id.ToString();
}
else
{//如果没有考试添加一条考试记录
examinationId = _examination.InsertAndGetId(new Examination()
{
StartTime = DateTime.Now, EndTime = DateTime.Now.AddDays(1).Date, Note = string.Empty, DayOrWeek = "day"
}).ToString();
_unitOfWork.SaveChanges();
}
}
if (dayOrWeek == "week")
{
var a = DateTimeHelper.GetWeekFirstDayMon(DateTime.Now.Date);
if (_examination.Any(e => e.StartTime >= a && e.EndTime > DateTime.Now && e.DayOrWeek == "week"))
{
examinationId = _examination.FirstOrDefault(e => e.StartTime >= a && e.EndTime > DateTime.Now && e.DayOrWeek == "week").Id.ToString();
}
else
{//如果没有考试添加一条考试记录
examinationId = _examination.InsertAndGetId(new Examination()
{
StartTime = DateTime.Now, EndTime = DateTimeHelper.GetWeekLastDaySun(DateTime.Now.Date), Note = string.Empty, DayOrWeek = "week"
}).ToString();
_unitOfWork.SaveChanges();
}
}
if (string.IsNullOrEmpty(dayOrWeek))
{
#region
if (_examination.Any(e => e.EndTime > DateTime.Now))//当前时间小于考试结束时间代表有考试
{
examinationId = _examination.FirstOrDefault(e => e.EndTime > DateTime.Now).Id.ToString();
}
else
{//如果没有考试添加一条考试记录
examinationId = _examination.InsertAndGetId(new Examination()
{
StartTime = DateTime.Now, EndTime = DateTime.Now.AddDays(1).Date, Note = string.Empty
}).ToString();
_unitOfWork.SaveChanges();
}
#endregion
}
ExaminationOutPut examinationOutPut = GetQuestions();
examinationOutPut.ExaminationId = examinationId;
return(Result <ExaminationOutPut> .Success(examinationOutPut));
}
/// <summary>
/// 交卷
/// </summary>
/// <param name="userId"></param>
/// <param name="examinationIntput"></param>
/// <returns></returns>
public Result <TestEndOutput> TestEnd(long userId, ExaminationIntput examinationIntput)
{
Score score = new Score();
if (string.IsNullOrEmpty(examinationIntput.ExaminationId))
{
return(Result <TestEndOutput> .Fail("该考试不存在"));
}
var has = false;
var thisExamination = _examination.Get(long.Parse(examinationIntput.ExaminationId));
DateTime timeNow = DateTime.Now.Date;
if (_score.Any(s => s.UserId == userId && s.ExaminationId == thisExamination.Id))
{
has = true;
score = _score.GetAll().FirstOrDefault(s => s.UserId == userId && s.ExaminationId == thisExamination.Id);
}
score.UserId = userId;
score.ExaminationId = thisExamination.Id;
score.DayOrWeek = thisExamination.DayOrWeek;
string scoreContent = "[";
double totalScore = 0;
var types = _questionType.GetAll().ToList();
var error = 0;
List <QuestionStringId> ErrorQuestion = new List <QuestionStringId>();
ExaminationOutPut questionsResult = new ExaminationOutPut();
var single = _questionType.FirstOrDefault(q => q.Name == "单选"); //单选题数量
var multiple = _questionType.FirstOrDefault(q => q.Name == "多选"); //多选题数量
var judge = _questionType.FirstOrDefault(q => q.Name == "判断"); //判断题数量
foreach (QuestionAndInputAnswer item in examinationIntput.questionAndInputAnswers)
{
//item.QuestionItemId.TrimEnd() + "###" + item.InputAnswer.TrimEnd() + "&&&"
scoreContent += "{\"" + item.QuestionItemId + "\":\"" + item.InputAnswer + "\"},";
var thisQuestion = _question.Get(long.Parse(item.QuestionItemId));
if (item.InputAnswer.TrimEnd() == thisQuestion.Answer)
{
totalScore += types.FirstOrDefault(m => m.Id == thisQuestion.QuestionTypeId).Score;
}
else
{
ErrorQuestion.Add(new QuestionStringId()
{
StrId = thisQuestion.Id.ToString(),
Content = thisQuestion.Content,
Options = thisQuestion.Options,
AnswerNote = thisQuestion.AnswerNote,
QuestionType = thisQuestion.QuestionTypeId == single.Id ? "单选" : thisQuestion.QuestionTypeId == multiple.Id ? "多选" : "判断",
Answer = thisQuestion.Answer,
MyAnswer = item.InputAnswer
});
error++;
}
}
scoreContent = scoreContent.Substring(0, scoreContent.Length - 1);
scoreContent += "]";
score.Content = scoreContent;
score.TotalScore = totalScore;
try
{
if (has)
{
_score.Update(score);
}
else
{
_score.Insert(score);
}
_unitOfWork.SaveChanges();
return(Result <TestEndOutput> .Success(new TestEndOutput()
{
Toal = examinationIntput.questionAndInputAnswers.Count(),
Error = error,
Score = totalScore,
ErrorQuestion = ErrorQuestion
}));;
}
catch
{
return(Result <TestEndOutput> .Fail(""));
}
}
