public void UpdateAmount(double cost)
{
try
{
using (var db = new VendMachineDbContext())
{
Account Account = db.Accounts.Where(x => x.CardNO == cardNo).FirstOrDefault();
Account.Amount -= cost;
db.Entry(Account).State = EntityState.Modified;
db.SaveChanges();
log.Info("Payment success");
}
}
catch (Exception)
{
log.Error("Db connection failed");
}
}
public bool IsValidCard()
{
try
{
using (var db = new VendMachineDbContext())
{
Account Account = db.Accounts.Where(x => x.CardNO == cardNo).FirstOrDefault();
if (Account != null && Account.Pin == pin)
{
return(true);
}
return(false);
}
}
catch (Exception)
{
log.Error("Db connection failed");
return(false);
}
}
public bool IsEnough(double cost)
{
try
{
using (var db = new VendMachineDbContext())
{
Account Account = db.Accounts.Where(x => x.CardNO == cardNo).FirstOrDefault();
if (Account.Amount >= cost)
{
return(true);
}
return(false);
}
}
catch (Exception)
{
log.Error("Db connection failed");
return(false);
}
}
