public string RequestForThisBook(Book book, BookReader reader)
{
BookGateway aBookGateway = new BookGateway();
if (aBookGateway.CheckIfthisBookExist(book))
{
if (aBookGateway.CheckBookQuantity(book) > 0)
{
if (aRequestGateway.RequestForThisBook(book, reader))
{
return("Request Successfull");
}
else
{
return("Error found");
}
}
else
{
return("Not Available now");
}
}
else
{
return("This book is not exist in the library");
}
}