public void UpdateStockHistoryDataFromAPI()
        {
            IList <StockHistoryModel> newStockHistoryInfo = stockHistoryAPIDao.GetLastCloseStockHistory();

            foreach (StockHistoryModel stockHistory in newStockHistoryInfo)
            {
                bool isDuplicate = stockDao.CheckForDuplicateHistoryEntry(stockHistory.TradingDay, stockHistory.StockSymbol);

                if (!isDuplicate)
                {
                    stockDao.AddHistoryEntry(stockHistory);
                }
            }
        }