public HttpResponseMessage PostQuestion([FromBody] QuestionDataModel model)
        {
            var rez = _questionDal.AddQueston(model.Text, model.DifficultyID, model.SubjectId, model.TypeId);

            foreach (var answer in model.Answers)
            {
                if (String.IsNullOrEmpty(answer.Text))
                {
                    continue;
                }
                _answerDal.AddAnswer(answer.Text, answer.Value, rez.Id);
            }

            return(Request.CreateResponse(HttpStatusCode.Created, new { Message = "Question has been created" }));
        }