public async Task <Unit> Handle(UpdateChoiceCommand request, CancellationToken cancellationToken)
{
var quiz = await _dbContext.FindQuizAsync(request.QuizId, cancellationToken);
quiz.UpdateChoiceInQuestion(request.QuestionId, request.ChoiceId, request.Text, request.IsCorrect);
await _dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(UpdateQuestionCommand request, CancellationToken cancellationToken)
{
var quiz = await dbContext.FindQuizAsync(request.QuizId, cancellationToken);
Ensure(quiz, request.QuizId);
quiz.UpdateQuestion(request.QuestionId, request.NewText);
await dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(DeleteChoiceCommand request, CancellationToken cancellationToken)
{
var quiz = await _dbContext.FindQuizAsync(request.QuizId, cancellationToken);
quiz.RemoveChoiceFromQuestion(request.QuestionId, request.ChoiceId);
await _dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(UpdateQuizCommand request, CancellationToken cancellationToken)
{
var quiz = await _dbContext.FindQuizAsync(request.Id, cancellationToken);
Ensure(quiz, request.Id);
quiz.Name = request.Name;
quiz.Description = request.Description;
await _dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(DeleteQuizCommand request, CancellationToken cancellationToken)
{
Domain.Entities.Quiz quiz = await dbContext.FindQuizAsync(request.QuizId, cancellationToken);
if (quiz == null)
{
throw new EntityNotFoundException($"Quiz {request.QuizId} was not found.");
}
dbContext.Quizes.Remove(quiz);
await dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(DeleteQuestionCommand request, CancellationToken cancellationToken)
{
Domain.Entities.Quiz quiz = await _dbContext.FindQuizAsync(request.QuizId, cancellationToken);
if (quiz == null)
{
throw new EntityNotFoundException("No Quiz with Question", request.QuestionId);
}
quiz.RemoveQuestion(request.QuestionId);
await _dbContext.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <AddChoiceCommandResponse> Handle(AddChoiceCommand request, CancellationToken cancellationToken)
{
var quiz = await _dbContext.FindQuizAsync(request.QuizId, cancellationToken);
Ensure.Entity(quiz, "Quiz", request.QuizId);
var addedChoiceRef = quiz.AddChoiceToQuestion(request.QuestionId, request.Text, request.IsCorrect);
await _dbContext.SaveChangesAsync(cancellationToken);
return(new AddChoiceCommandResponse()
{
NewChoiceId = addedChoiceRef.Id,
Text = request.Text,
IsCorrect = request.IsCorrect
});
}
public async Task <AddQuestionCommandResponse> Handle(AddQuestionCommand request, CancellationToken cancellationToken)
{
var quiz = await dbContext.FindQuizAsync(request.QuizId, cancellationToken);
Ensure(quiz, request.QuizId);
var question = quiz.AddQuestion(request.Text, GetChoiceList(request.Answers));
await dbContext.SaveChangesAsync(cancellationToken);
var response = new AddQuestionCommandResponse()
{
Id = question.Id,
Answers = request.Answers
};
return(response);
}