public bool RentBook(Data.Entities.Models.Book book, Person person)
{
if (_context.Rents.Any(rnt => rnt.Book == book && rnt.Person == person && rnt.ReturnDate == null))
{
return(false);
}
_context.Rents.Add(new Rent(_context.Persons.Find(person.PersonId), _context.Books.Find(book.BookId), DateTime.Now));
_context.Books.Find(book.BookId).State = BookState.Rented;
_context.SaveChanges();
return(true);
}
public bool BookReturned(Data.Entities.Models.Book book, Person person)
{
var rentedBook = _context.Rents.FirstOrDefault(rnt => rnt.BookId == book.BookId && rnt.PersonId == person.PersonId && rnt.ReturnDate.Value == null);
if (rentedBook == null)
{
return(false);
}
_context.Books.Find(book.BookId).State = BookState.Available;
rentedBook.ReturnDate = DateTime.Now;
_context.SaveChanges();
return(true);
}
