private bool UserHasExceededLendingLength(LibraryItem item, User user, DateTime date)
{
bool result = false;
var lending = user.Lendings.Where(l => l.Item.ID == item.ID).Single();
var elapsedDays = (date - lending.LendingDate).Days;
if (elapsedDays > item.DaysToLend())
{
result = true;
}
return(result);
}