//
// GET: /QuestionMgr/Create
public ActionResult Create()
{
QuestionProxyModel m = new QuestionProxyModel()
{
Name = "Example",
Points = 1,
Answer = "AB",
Option = "abcd$abcd"
};
AddViewData();
return View(m);
}
public ActionResult Create(QuestionProxyModel question)
{
AddViewData();
bool success = false;
int id = 0;
if (ModelState.IsValid)
{
success = QuestionHelper.AddQuestion(db, User.Identity.Name, question, ModelState, out id);
if (success)
{
if (id != 0)
{
LogHelper.Log(db, User.Identity.Name, AGPDefine.LogLevelType.Info, AGPDefine.LogEventType.Insert, AGPDefine.LogObjectType.Question, null);
return RedirectToAction("Index");
}
}
}
return View(question);
}
public static bool AddQuestion(AGPDataContext db, string user, QuestionProxyModel model, ModelStateDictionary ModelState, out int id)
{
bool success = true;
id = 0;
try
{
var c = db.Catalogs.Find(model.CatalogId);
if (c == null)
{
ModelState.AddModelError("CatalogId", "类别不正确");
return false;
}
int TypeId = model.TypeId;
if (TypeId == 0)
{
ModelState.AddModelError("TypeId", "题型不正确");
return false;
}
var QType = (AGPDefine.QuestionType)Enum.ToObject(typeof(AGPDefine.QuestionType), TypeId);
var u = db.Users.Single(a => a.UserName == user);
Question q = new Question();
switch ( QType )
{
case AGPDefine.QuestionType.SingleSelect:
{
var o = model.Option.Split( '$' ).ToList();
var ans = model.Answer.ToList().ConvertAll<int>(a => a - 'A' + 1).Distinct().OrderBy(a => a).ToList();
if (o.Count != 1)
throw new QuestionModelException();
if (!(ans.First() > 0 && ans.First() <= o.Count))
throw new QuestionModelException();
q = new AGPQuestionModel_SingleSelect()
{
Caption = model.Name, Option = o, Answer = ans.First(),
User = u, Catalog = c, Points = model.Points, Label = model.Label,
Description = model.Description, Difficulty = model.Difficulty
}.ConvertToQuestion();
}
break;
case AGPDefine.QuestionType.MultiSelect:
{
var o = model.Option.Split( '$' ).ToList();
var ans = model.Answer.ToList().ConvertAll<int>(a => a - 'A' + 1).Distinct().OrderBy(a => a).ToList();
if (o.Count <= 1 || o.Count > 26)
throw new QuestionModelException();
if (!(ans.All(a => a > 0 && a <= o.Count)))
throw new QuestionModelException();
q = new AGPQuestionModel_MultiSelect()
{
Caption = model.Name, Option = o, Answer = ans,
User = u, Catalog = c, Points = model.Points, Label = model.Label,
Description = model.Description, Difficulty = model.Difficulty
}.ConvertToQuestion();
}
break;
case AGPDefine.QuestionType.Check:
{
q = new AGPQuestionModel_Check()
{
Caption = model.Name, Answer = string.Compare(model.Answer, "true", true) == 0,
User = u, Catalog = c, Points = model.Points, Label = model.Label,
Description = model.Description, Difficulty = model.Difficulty
}.ConvertToQuestion();
}
break;
case AGPDefine.QuestionType.Blank:
{
q = new AGPQuestionModel_Blank()
{
Caption = model.Name, Answer = model.Answer,
User = u, Catalog = c, Points = model.Points, Label = model.Label,
Description = model.Description, Difficulty = model.Difficulty
}.ConvertToQuestion();
}
break;
case AGPDefine.QuestionType.ShortAnswer:
{
q = new AGPQuestionModel_ShortAnswer()
{
Caption = model.Name, Answer = model.Answer,
User = u, Catalog = c, Points = model.Points, Label = model.Label,
Description = model.Description, Difficulty = model.Difficulty
}.ConvertToQuestion();
}
break;
default:
break;
}
q.State = (int)AGPDefine.CommitType.Insert;
db.Questions.Add(q);
db.SaveChanges();
id = q.QuestionId;
}
catch (Exception ex)
{
success = false;
ModelState.AddModelError("", ex.Message);
}
return success;
}
