public ActionResult Create(Question model)
{
if(!ModelState.IsValid)
{
return View(model);
}
model.OwnerUserId = User.Identity.UserId();
model.CreateAt = DateTime.UtcNow;
DB.Questions.Add(model);
DB.SaveChanges();
return RedirectToAction("Index");
}
public ActionResult Edit(int id, Question model)
{
var question = this.DB.Questions.Find(id);
if (!ModelState.IsValid)
{
return View(model);
}
UpdateModel(question,
prefix: null,
includeProperties: null,
excludeProperties: new[] { "QuestionId", "OwnerUserId", "CreateAt" });
DB.SaveChanges();
return RedirectToAction("Index");
}
public ActionResult Create(Question model)
{
if (IsValidDataURL(model) == false) throw new ApplicationException("Invalid Data URL.");
if(ModelState.IsValid == false)
{
return View(model);
}
model.OwnerUserId = User.Identity.UserId();
model.CreateAt = DateTime.UtcNow;
this.DB.Questions.Add(model);
this.DB.SaveChanges();
return RedirectToAction("Index");
}
public ActionResult Edit(int id, Question model)
{
var question = this.DB.Questions.Find(id);
if (question.OwnerUserId != User.Identity.UserId())
throw new Exception("Access Violation.");
if (ModelState.IsValid == false)
{
return View(model);
}
UpdateModel(question,
prefix: null,
includeProperties: null,
excludeProperties: new[] { "QuestionId", "OwnerUserId", "CreateAt" });
if (IsValidDataURL(question) == false) throw new ApplicationException("Invalid Data URL.");
this.DB.SaveChanges();
return RedirectToAction("Index");
}
private bool IsValidDataURL(Question model)
{
return model.GetOptions(trim: false)
.Select(opt => opt.OptionImage ?? "")
.All(url => Regex.IsMatch(url, @"(^data:image/\w+;\w+,[0-9a-zA-Z/+=]+$)|(^$)"));
}
