public ActionResult Create(Question question)
{
if (ModelState.IsValid)
{
questionRepository.InsertOrUpdate(question);
questionRepository.Save();
return RedirectToAction("SurveyQuestions", new { surveyId = question.SurveyId });
}
PopulateViewBag(question.SurveyId);
return View(question);
}
public ActionResult Create(int surveyId)
{
var q = new Question()
{
Options = new List<QuestionOption>()
{
new QuestionOption(), new QuestionOption(), new QuestionOption()
},
SurveyId = surveyId
};
PopulateViewBag(surveyId);
return View(q);
}
public void InsertOrUpdate(Question question)
{
PurgeEmptyOptions(question);
if (question.Id == default(int))
{
// New entity
context.Questions.Add(question);
}
else
{
// Existing entity
DeleteDestroyedOptions(question);
SetQuestionId(question.Options, question.Id);
context.SetEntityStateForChildren(question.Options);
context.Entry(question).State = EntityState.Modified;
}
}
private void DeleteDestroyedOptions(Question question)
{
context.ProcessDestroyableChildren(question.Options);
var destroyed = question.Options.Where(x => x.Destroy && x.Id > 0).ToList();
foreach (var questionOption in destroyed)
{
question.Options.Remove(questionOption);
}
}
private static void PurgeEmptyOptions(Question question)
{
if(question.Options!=null)
{
var emptyOptions = question.Options.Where(option => string.IsNullOrWhiteSpace(option.OptionText)).ToList();
foreach (var emptyOption in emptyOptions)
{
question.Options.Remove(emptyOption);
}
}
}