// Customer
 public static Library.Customer Map(DataAccess.Customer customer) => new Library.Customer
 {
     Id              = customer.CustomerId,
     FirstName       = customer.FirstName,
     LastName        = customer.LastName,
     DefaultLocation = customer.DefaultLocation
 };
 public static Customer Map(DataAccess.Customer cust) => new Customer
 {
     CustId      = cust.Id,
     FName       = cust.FirstName,
     LName       = cust.LastName,
     DateOfBirth = (DateTime)cust.DateOfBirth,
     Loc         = (int)cust.PrefLoc
 };
 /// <summary>
 /// Adds a new customer to the database
 /// </summary>
 /// <param name="customer">The newly created customer</param>
 public void addCustomer(lib.Customer customer)
 {
     try
     {
         var dataCustomer = new DataAccess.Customer();
         dataCustomer.Balance   = customer.Balance;
         dataCustomer.FirstName = customer.FirstName;
         dataCustomer.LastName  = customer.LastName;
         _context.Add(dataCustomer);
         _context.SaveChanges();
     }
     catch (Exception)
     {
         Console.WriteLine("Error saving customer.");
     }
 }