public bool MakeLease(BookLeaseDTO bookLeaseDTO)
{
Book book = Database.Books.Get(bookLeaseDTO.BookId);
// валидация
if (book == null)
{
throw new ValidationException("The book was not found", "");
}
// check if there is enough books for the order
if (book.Amount >= bookLeaseDTO.Amount)
{
BookLease bookLease = new BookLease
{
Amount = bookLeaseDTO.Amount,
StudentId = bookLeaseDTO.StudentId,
BookId = bookLeaseDTO.BookId,
GetTime = bookLeaseDTO.GetTime,
ReturnTime = bookLeaseDTO.ReturnTime
};
book.Amount -= bookLeaseDTO.Amount;
Database.Books.Update(book);
Database.Save();
Database.BookLeases.Create(bookLease);
Database.Save();
return(true);
}
else
{
return(false);
}
}
public ActionResult MakeLease(BookLeaseVM lease)
{
try
{
var bookLeaseDTO = new BookLeaseDTO {
BookId = lease.BookId, Amount = lease.Amount, StudentId = lease.StudentId,
GetTime = lease.GetTime, ReturnTime = lease.ReturnTime
};
leaseService.MakeLease(bookLeaseDTO);
return(Content("<h2>Done!</h2>"));
}
catch (ValidationException ex)
{
ModelState.AddModelError(ex.Property, ex.Message);
}
return(View(lease));
}
public ActionResult Lease(BookLeaseVM bookLeaseVM)
{
try
{
BookLeaseDTO bookLeaseDTO = new BookLeaseDTO
{
BookId = bookLeaseVM.BookId,
StudentId = bookLeaseVM.StudentId,
GetTime = DateTime.Now,
Amount = bookLeaseVM.Amount
};
if (leasesService.MakeLease(bookLeaseDTO))
{
return(RedirectToAction("Index"));
}
return(View("Error"));
}
catch
{
return(View());
}
}
