public bool IsAtleastOneBookAndOneBorrowerExist(DisplayBookBorrowerViewModel bbVM)
{
var books = bbVM.Books;
var borrowers = bbVM.Borrowers;
return(IsAtleastOneBookExist(books) && IsAtleastOneBorrowerExist(borrowers));
}
public bool IsAtleastOneBookAndOneBorrowerExist(DisplayBookBorrowerViewModel bbVM)
{
var books = bbVM.Books.Select(b => new SelectListItem()
{
Value = b.Value,
Text = b.Text
}).ToList();
var borrowers = bbVM.Borrowers;
return(IsAtleastOneBookExist(books) && IsAtleastOneBorrowerExist(borrowers));
}
// This function returns the list of all available Books and Borrowers.
public DisplayBookBorrowerViewModel GetAllBooksBorrowers()
{
var bookBorrowerViewModel = new DisplayBookBorrowerViewModel();
bookBorrowerViewModel.Books = libraryContext.Books.
Where(b => b.IsBorrowed == false).
Select(c => new SelectListItem
{
Value = c.BookId.ToString(),
Text = c.Title
});
bookBorrowerViewModel.Borrowers = libraryContext.Borrowers.
Select(c => new SelectListItem
{
Value = c.BorrowerId.ToString(),
Text = c.FirstName + " " + c.LastName
});
return(bookBorrowerViewModel);
}
