public void UpdateExchangeRate(int currentCurrencyId, int currencyId, decimal buy, decimal sell)
{
var exchangeRate = new CurrencyExchangeRateEF(currentCurrencyId, currencyId, buy, sell);
_db.Entry(exchangeRate).State = EntityState.Modified;
_db.SaveChanges();
}
public void CreateExchangeRate(int currentCurrencyId, int currencyId, decimal buy, decimal sell)
{
var exchangeRate = new CurrencyExchangeRateEF(currentCurrencyId, currencyId, buy, sell);
_db.CurrencyExchanges.Add(exchangeRate);
_db.SaveChanges();
}