public object PostAddQuestion([FromBody] Question_View questionInfo)
{
Question question = new Question();
question.id = questionInfo.id;
question.question = questionInfo.question;
question.a = questionInfo.a;
question.b = questionInfo.b;
question.c = questionInfo.c;
question.d = questionInfo.d;
question.a = questionInfo.a;
question.answer = questionInfo.answer;
question.analysis = questionInfo.analysis;
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String Id = cookie1["CourseId"];
int courseId = int.Parse(Id);
question.courseId = courseId;
question.unitId = questionInfo.unitId;
question.knowledgeId = questionInfo.knowledgeId;
question.difficulty = questionInfo.difficulty;
question.rightNum = questionInfo.rightNum;
question.totalNum = questionInfo.totalNum;
var future = Bmob.CreateTaskAsync(question);
String id = future.Result.objectId;
return(id);
}
public object GetSelectedQuestion(int unitId, String knowledgeId, int difficulty)
{
var query = new BmobQuery();
query.Limit(300);
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String Id = cookie1["CourseId"];
int courseId = int.Parse(Id);
query.WhereEqualTo("courseId", courseId);
var query1 = new BmobQuery();
query1.WhereEqualTo("unitId", unitId);
var query2 = new BmobQuery();
query2.WhereEqualTo("knowledgeId", knowledgeId);
var query3 = new BmobQuery();
query3.WhereEqualTo("difficulty", difficulty);
query2 = query2.And(query3);
query1 = query1.And(query2);
query = query.And(query1);
var future = Bmob.FindTaskAsync <Question>("Question", query);
try
{
questionList = future.Result.results;
foreach (var q in questionList) //由于BmobModel中有BmobInt类型不能直接显示到页面中，所以需要对字段的类型进行处理，变为相对应的ViewModel格式。
{
Question_View question_view = new Question_View();
question_view.id = q.id.Get();
question_view.difficulty = q.difficulty.Get();
question_view.totalNum = q.totalNum.Get();
question_view.rightNum = q.rightNum.Get();
question_view.question = q.question;
question_view.a = q.a;
question_view.b = q.b;
question_view.c = q.c;
question_view.d = q.d;
question_view.answer = q.answer;
question_view.analysis = q.analysis;
question_view.courseId = q.courseId.Get();
question_view.unitId = q.unitId.Get();
question_view.knowledgeId = q.knowledgeId;
qList.Add(question_view);
}
return(ResultToJson.toJson(qList));
}
catch
{
return("获取失败");
}
}
public object GetQuestionStatistic(int unitId)
{
var query = new BmobQuery();
query.Limit(300);
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String id = cookie1["CourseId"];
int courseId = int.Parse(id);
query.WhereEqualTo("courseId", courseId);
var query1 = new BmobQuery();
query1.WhereEqualTo("unitId", unitId);
query = query.And(query1);
//query.OrderByDescending("rightNum");
var future = Bmob.FindTaskAsync <Question>("Question", query);
try
{
questionList = future.Result.results;
foreach (var q in questionList) //由于BmobModel中有BmobInt类型不能直接显示到页面中，所以需要对字段的类型进行处理，变为相对应的ViewModel格式。
{
Question_View question_view = new Question_View();
question_view.id = q.id.Get();
question_view.question = q.question;
question_view.totalNum = q.totalNum.Get();
question_view.rightNum = q.rightNum.Get();
if (question_view.totalNum != 0)
{
question_view.accuracy = 100 * question_view.rightNum / question_view.totalNum;
}
qList.Add(question_view);
}
questionSortList = qList.OrderByDescending(s => s.accuracy).ToList();
return(ResultToJson.toJson(questionSortList));
}
catch
{
return("获取失败");
}
}
public object GetShowDetails(String examQuestionList)
{
string[] results = examQuestionList.Split(new[] { ';' });
int[] examQuestion = Array.ConvertAll <string, int>(results, s => int.Parse(s));
for (int i = 0; i < examQuestion.Length; i++)
{
var query = new BmobQuery();
query.WhereEqualTo("id", examQuestion[i]);
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String Id = cookie1["CourseId"];
int courseId = int.Parse(Id);
var query2 = new BmobQuery();
query2.WhereEqualTo("courseId", courseId);
query = query.And(query2);
query.OrderBy("id");
var future = Bmob.FindTaskAsync <Question>("Question", query);
try
{
questionList = future.Result.results;
foreach (var q in questionList) //由于BmobModel中有BmobInt类型不能直接显示到页面中，所以需要对字段的类型进行处理，变为相对应的ViewModel格式。
{
Question_View question_view = new Question_View();
question_view.id = q.id.Get();
question_view.difficulty = q.difficulty.Get();
question_view.question = q.question;
question_view.courseId = q.courseId.Get();
question_view.unitId = q.unitId.Get();
question_view.knowledgeId = q.knowledgeId;
qList.Add(question_view);
}
}
catch
{
return("获取失败");
}
}
return(ResultToJson.toJson(qList));
}
public void QuestionInfo() //查询全部题目的函数
{
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String id = cookie1["CourseId"];
int courseId = int.Parse(id);
var query = new BmobQuery();
query.Limit(300);
query.WhereEqualTo("courseId", courseId);
query.OrderBy("id");
var future = Bmob.FindTaskAsync <Question>("Question", query);
try
{
questionList = future.Result.results;
foreach (var q in questionList) //由于BmobModel中有BmobInt类型不能直接显示到页面中，所以需要对字段的类型进行处理，变为相对应的ViewModel格式。
{
Question_View question_view = new Question_View();
question_view.objectId = q.objectId;
question_view.id = q.id.Get();
question_view.difficulty = q.difficulty.Get();
question_view.totalNum = q.totalNum.Get();
question_view.rightNum = q.rightNum.Get();
question_view.question = q.question;
question_view.a = q.a;
question_view.b = q.b;
question_view.c = q.c;
question_view.d = q.d;
question_view.answer = q.answer;
question_view.analysis = q.analysis;
question_view.courseId = q.courseId.Get();
question_view.unitId = q.unitId.Get();
question_view.knowledgeId = q.knowledgeId;
qList.Add(question_view);
}
}
catch { }
//如果需要对其中一行数据进行处理，可以记录每以条记录的object值，方便对Bmob数据库进行操作。
}
public List <Question_View> selectQuestion(Requirement require, Double diff, int num)
{
HttpCookie cookie1 = HttpContext.Current.Request.Cookies["CurrentCourse"];
String Id = cookie1["CourseId"];
int courseId = int.Parse(Id);
List <Question> questionList = new List <Question>();
List <Question_View> qList = new List <Question_View>();
//List<Question_View> resultList = new List<Question_View>();
var query = new BmobQuery();
query.WhereEqualTo("courseId", courseId);
var q1 = new BmobQuery();
q1.WhereEqualTo("difficulty", diff);
query.And(q1);
query.Limit(500);
var future = Bmob.FindTaskAsync <Question>("Question", query);
try
{
questionList = future.Result.results;
Random ra = new Random();
int[] qNum = new int[num];
int i = 0;
while (true)
{
if (i == num - 1)
{
break;
}
int random = ra.Next(0, questionList.Count);
int n = 0;
for (int k = 0; k < i; k++)
{
if (qNum[k] != random)
{
n++;
}
}
if (n == i)
{
qNum[i] = random;
}
else
{
continue;
}
i++;
}
for (int a = 0; a < num; a++)
{
int id = qNum[a];
Question q = new Question();
q = questionList[id];
Question_View question_view = new Question_View();
question_view.id = q.id.Get();
//question_view.question = q.question;
//question_view.a = q.a;
//question_view.b = q.b;
//question_view.c = q.c;
//question_view.d = q.d;
//question_view.answer = q.answer;
//question_view.analysis = q.analysis;
//question_view.difficulty = q.difficulty.Get();
//question_view.unitId = q.unitId.Get();
//question_view.knowledgeId = q.knowledgeId;
qList.Add(question_view);
}
}
catch
{
//result = "抽取失败";
}
return(qList);
}
