public void CreateLoan(LoanViewModel model)
{
int nextId = 0;
if (Storage.Loans.Count > 0)
{
nextId = Storage.Loans.Last().Id + 1;
}
var loan = new Loan();
var book = _bookRepository.GetItemDetails(int.Parse(model.SelectedBook));
var user = _userService.FindLoggedUser();
loan.Id = nextId;
loan.Book = book;
loan.User = user;
loan.Status = LoanStatusEnum.Active;
loan.LoanDate = DateTime.Now;
_loanRepository.CreateNew(loan);
}