private QuestionsList(IQuestionSerializer <IQuestion> serializer)
{
list = new List <T>();
foreach (IQuestion q in serializer.readQuestions())
{
list.Add((T)q);
}
}
public static QuestionsList <T> GetInstance(IQuestionSerializer <IQuestion> serializer)
{
if (instance == null)
{
instance = new QuestionsList <T>(serializer);
}
return(instance);
}
public bool AddQuestion(T question, IQuestionSerializer <IQuestion> serializer)
{
if (question == null)
{
throw new ArgumentNullException(nameof(question));
}
if (HasQuestion(question.Quest))
{
return(false);
}
else
{
list.Add(question);
serializer.writeQuestion(question);
return(true);
}
}
public HomeController(IQuestionSerializer <IQuestion> questionSerializer)
{
_questionSerializer = questionSerializer;
}
