public IActionResult New(NewPaymentViewModel newPaymentViewModel)
{
if (ModelState.IsValid)
{
Payment payment = Payment.RetrieveExistingPaymentOrReturnNew(_context, newPaymentViewModel);
IList <Article> articles = Payment.ReadFile(newPaymentViewModel.File);
if (payment.CalculationComplete)
{
newPaymentViewModel.Error = "Calculation has already been completed for this month.";
return(View(newPaymentViewModel));
}
payment.AddArticlesToDatabase(articles, _context);
_context.SaveChanges();
return(Redirect("/Payment/" + payment.MonthYear + "/Articles"));
}
return(View(newPaymentViewModel));
}
