public IHttpActionResult SaveInquiryPosition([FromBody] object inquiryPosData)
        {
            WebResponseContentModel <InquiryPositionModel> model = null;

            try
            {
                model = JsonConvert.DeserializeObject <WebResponseContentModel <InquiryPositionModel> >(inquiryPosData.ToString());

                if (model.Content != null)
                {
                    if (model.Content.PovprasevanjePozicijaID > 0)//We update existing record in DB
                    {
                        inquiryRepo.SaveInquiryPositionModel(model.Content);
                    }
                    else // We add and save new recod to DB
                    {
                        model.Content.PovprasevanjePozicijaID = inquiryRepo.SaveInquiryPositionModel(model.Content, false);
                    }

                    model.Content.PovprasevanjePozicijaArtikel = inquiryRepo.GetInquiryPositionArtikelByInquiryPositionID(model.Content.PovprasevanjePozicijaID);
                    //model = inquiryRepo.GetInquiryPositionByID(model.Content.PovprasevanjeID);
                    model.IsRequestSuccesful = true;
                }
                else
                {
                    model.IsRequestSuccesful = false;
                    model.ValidationError    = ValidationExceptionError.res_09;
                }
            }
            catch (Exception ex)
            {
                model.IsRequestSuccesful = false;
                model.ValidationError    = ExceptionValidationHelper.GetExceptionSource(ex);
                return(Json(model));
            }

            return(Json(model));
        }