private void MapQuestions(EditQuizModel source, Quiz destination)
{
var existingQuestions = new List <Question>(destination.Questions);
destination.Questions.Clear();
foreach (var question in source.Questions)
{
var existingQuestion = existingQuestions.FirstOrDefault(q => q.Id == question.Id);
if (existingQuestion == null)
{
destination.Questions.Add(this.Mapper.Map <Question>(question));
}
else
{
destination.Questions.Add(existingQuestion);
this.Mapper.Map(question, existingQuestion);
var existingAnswers = new List <Answer>(existingQuestion.Answers);
existingQuestion.Answers.Clear();
foreach (var answer in question.Answers)
{
var existingAnswer = existingAnswers.FirstOrDefault(a => a.Id == answer.Id);
if (existingAnswer == null)
{
existingQuestion.Answers.Add(this.Mapper.Map <Answer>(answer));
}
else
{
this.Mapper.Map(answer, existingAnswer);
existingQuestion.Answers.Add(existingAnswer);
}
}
this.Mapper.Map(question, existingQuestion);
}
}
}
public IHttpActionResult Update(int id, EditQuizModel model)
{
if (!this.ModelState.IsValid)
{
return(this.BadRequest(this.ModelState));
}
var dataQuiz = this.quizzes.GetById(id);
bool userIsAdmin = this.User.IsInRole(GlobalConstants.AdministratorRoleName);
if (dataQuiz == null || (this.UserId != dataQuiz.CreatedById && !userIsAdmin))
{
return(this.NotFound());
}
var category = this.categories.GetById(model.Category.Id);
if (category == null)
{
return(this.BadRequest(this.ModelState));
}
this.Mapper.Map(model, dataQuiz);
this.MapQuestions(model, dataQuiz);
dataQuiz.Category = category;
try
{
this.quizzes.Save();
return(this.Ok(new { message = "Quiz updated successfully" }));
}
catch (QuizCreationException ex)
{
return(this.BadRequest(ex.Message));
}
}
public IHttpActionResult Update(int id, EditQuizModel model)
{
if (!this.ModelState.IsValid)
{
return this.BadRequest(this.ModelState);
}
var dataQuiz = this.quizzes.GetById(id);
bool userIsAdmin = this.User.IsInRole(GlobalConstants.AdministratorRoleName);
if (dataQuiz == null || (this.UserId != dataQuiz.CreatedById && !userIsAdmin))
{
return this.NotFound();
}
var category = this.categories.GetById(model.Category.Id);
if (category == null)
{
return this.BadRequest(this.ModelState);
}
this.Mapper.Map(model, dataQuiz);
this.MapQuestions(model, dataQuiz);
dataQuiz.Category = category;
try
{
this.quizzes.Save();
return this.Ok(new { message = "Quiz updated successfully" });
}
catch (QuizCreationException ex)
{
return this.BadRequest(ex.Message);
}
}
private void MapQuestions(EditQuizModel source, Quiz destination)
{
var existingQuestions = new List<Question>(destination.Questions);
destination.Questions.Clear();
foreach (var question in source.Questions)
{
var existingQuestion = existingQuestions.FirstOrDefault(q => q.Id == question.Id);
if (existingQuestion == null)
{
destination.Questions.Add(this.Mapper.Map<Question>(question));
}
else
{
destination.Questions.Add(existingQuestion);
this.Mapper.Map(question, existingQuestion);
var existingAnswers = new List<Answer>(existingQuestion.Answers);
existingQuestion.Answers.Clear();
foreach (var answer in question.Answers)
{
var existingAnswer = existingAnswers.FirstOrDefault(a => a.Id == answer.Id);
if (existingAnswer == null)
{
existingQuestion.Answers.Add(this.Mapper.Map<Answer>(answer));
}
else
{
this.Mapper.Map(answer, existingAnswer);
existingQuestion.Answers.Add(existingAnswer);
}
}
this.Mapper.Map(question, existingQuestion);
}
}
}
