private void ThrowIfRemainCountIsNegative(IncomingBook incomingBook, Book book, int reservedCount)
{
if (book.Count - reservedCount - incomingBook.Count < 0)
{
throw new InvoiceCountException(book.Name);
}
}
private async Task <Book> RecalculateCount(IncomingBook incomingBook)
{
var reservedCount = await GetReservedCountOfBook(incomingBook);
var book = await _unitOfWork.BookRepository.Get(incomingBook.Book.Id);
ThrowIfRemainCountIsNegative(incomingBook, book, reservedCount);
return(book);
}
private async Task <int> GetReservedCountOfBook(IncomingBook incomingBook)
{
var filters = new List <Expression <Func <Rent, bool> > >()
{
x => x.Book.Id == incomingBook.Book.Id
};
var rents = await _unitOfWork.RentRepository.GetAllAsync(filters, null, $"{nameof(Rent.Book)}");
var reservedCount = rents.Sum(x => x.Count);
return(reservedCount);
}
public void RefreshDocuments()
{
DoRefresh(() => IncomingBook.GetIncomingBook(Criteria as IncomingBookCriteriaGet));
if (_isViewAttached)
{
var haveDataContext = GetView() as IHaveDataContext;
if (haveDataContext != null)
{
haveDataContext.DataContext = this;
}
}
TriggerEmptyRegisterShow();
}
