private static void TestDBToolCustomer(DBTool <Customer> custDB)
{
// Initialised
PrintDBInfo(custDB, "init");
// Read records from DB
custDB.ReadFromDB();
PrintDBInfo(custDB, "readFromDB");
// Insert two records
custDB.InsertRecord(new Customer("Erik", "11223344", NextKey(custDB.GetAllKeys().ToList())));
custDB.InsertRecord(new Customer("Fiona", "44332211", NextKey(custDB.GetAllKeys().ToList())));
PrintDBInfo(custDB, "insert");
// Update an object
Customer oldObj = custDB.GetRecord(3);
Customer newObj = new Customer(oldObj.Name, "13371337", oldObj.Key);
custDB.UpdateRecord(oldObj, newObj);
PrintDBInfo(custDB, "update");
// Try to remove three object (only two exist)
custDB.RemoveRecord(2);
custDB.RemoveRecord(8);
custDB.RemoveRecord(4);
PrintDBInfo(custDB, "delete");
}
private static void PrintDBInfo <T>(DBTool <T> dbTool, string dbOperation) where T : class, IHasKey
{
Console.WriteLine($"(DBTool) Number of records after DB {dbOperation}: {dbTool.NoOfRecords()}");
foreach (var key in dbTool.GetAllKeys())
{
Console.WriteLine($"Record key: {key}");
Console.WriteLine($"Record : {dbTool.GetRecord(key)}");
}
Console.WriteLine();
}
