public void DeleteBook()
{
var tmp = SelectedBook;
SelectedBook = null;
Lending.Books.Remove(tmp);
}
private void RefreshCheckboxes()
{
LentBook selection = SelectedLentBook;
BindableCollection <LentBook> tmp = LentBooks;
LentBooks = null;
LentBooks = tmp;
SelectedLentBook = selection;
}
public async Task <IActionResult> LentBook(LentBook command, Guid divisionId, Guid subscriberId)
{
command.UserId = UserId;
command.Title = $"ksiazka";
divisionId = Guid.NewGuid();
await _divisionRelationalService.AddDivision(divisionId, command.Title, command.BookId, command.UserId);
await _divisionRelationalService.AddRelationalDivision(subscriberId, divisionId);
return(Created("/division", null));
}
public async Task <IActionResult> Add()
{
IEnumerable <Book> books = await _db.Books
.NotLentNow(_db.LentBooks)
.ToListAsync();
IEnumerable <Reader> readers = await _db.Readers.ToListAsync();
LentBook lentBook = new LentBook();
LentBookPageViewModel viewModel = new LentBookPageViewModel(lentBook, books, readers);
return(View(viewModel));
}
public async Task <IActionResult> Add(LentBook lentBook)
{
if (ModelState.IsValid && await ValidateLentBook(lentBook))
{
_db.LentBooks.Add(lentBook);
await _db.SaveChangesAsync();
return(RedirectToRoute("LentBooksList"));
}
IEnumerable <Book> books = await _db.Books
.NotLentNow(_db.LentBooks)
.ToListAsync();
IEnumerable <Reader> readers = await _db.Readers.ToListAsync();
LentBookPageViewModel viewModel = new LentBookPageViewModel(lentBook, books, readers);
return(View(viewModel));
}
/// <summary>
/// Validates book and user of lent book model.
/// </summary>
/// <param name="lentBook">Lent book model.</param>
/// <returns>Is lent model valid.</returns>
private async Task <bool> ValidateLentBook(LentBook lentBook)
{
bool isValid = true;
Book book = await _db.Books.FindAsync(lentBook.BookId);
if (book is null)
{
ModelState.AddModelError("BookId", "Book with that id doesn't exists!");
isValid = false;
}
Reader reader = await _db.Readers.FindAsync(lentBook.ReaderId);
if (reader is null)
{
ModelState.AddModelError("ReaderId", "Reader with that id doesn't exists!");
isValid = false;
}
return(isValid);
}
/// <summary>
/// Creates view model.
/// </summary>
/// <param name="lentBook">Lent book model.</param>
/// <param name="books">Available for lent books.</param>
/// <param name="readers">List of readers.</param>
public LentBookPageViewModel(LentBook lentBook, IEnumerable<Book> books, IEnumerable<Reader> readers)
{
LentBook = lentBook;
Books = books;
Readers = readers;
}