/// <summary> Adds a new PlayerInfo entry for a player who has never been online, by name. </summary>
/// <returns> A newly-created PlayerInfo entry. </returns>
public PlayerInfo AddUnrecognizedPlayer(string name, Rank startingRank, RankChangeType rankChangeType)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (startingRank == null)
{
throw new ArgumentNullException("startingRank");
}
using (PlayerDB.GetWriteLock()) {
using (MySqlTransaction transaction = connection.BeginTransaction()) {
preInsertCommand.Transaction = transaction;
preInsertCommand.ExecuteNonQuery();
int id = (int)preInsertCommand.InsertId;
PlayerInfo info = new PlayerInfo(id, name, startingRank, rankChangeType, false);
MySqlCommand updateCmd = GetUpdateCommand(info);
updateCmd.Transaction = transaction;
updateCmd.ExecuteNonQuery();
transaction.Commit();
preInsertCommand.Transaction = null;
updateCmd.Transaction = null;
return(info);
}
}
}
/// <summary> Inserts all data from given playerInfo directly into the database. </summary>
/// <param name="playerInfo"> Player record to import. </param>
public void Import(PlayerInfo playerInfo)
{
if (playerInfo == null)
{
throw new ArgumentNullException("playerInfo");
}
using (PlayerDB.GetWriteLock()) {
GetImportCommand(playerInfo).ExecuteNonQuery();
}
}
/// <summary> Removes a PlayerInfo entry from the database. </summary>
/// <returns> True if the entry is successfully found and removed; otherwise false. </returns>
public bool Remove(PlayerInfo playerInfo)
{
if (playerInfo == null)
{
throw new ArgumentNullException("playerInfo");
}
using (PlayerDB.GetWriteLock()) {
MySqlCommand cmd = GetDeleteCommand(playerInfo.ID);
int rowsAffected = cmd.ExecuteNonQuery();
return(rowsAffected > 0);
}
}
/// <summary> Inserts all data from given PlayerInfo list directly into the database. </summary>
/// <param name="playerInfos"> List of player record to import. </param>
public void Import(IEnumerable <PlayerInfo> playerInfos)
{
if (playerInfos == null)
{
throw new ArgumentNullException("playerInfos");
}
using (PlayerDB.GetWriteLock()) {
using (MySqlTransaction transaction = connection.BeginTransaction()) {
importCommand.Transaction = transaction;
foreach (PlayerInfo info in playerInfos)
{
GetImportCommand(info).ExecuteNonQuery();
}
transaction.Commit();
importCommand.Transaction = null;
}
}
}
/// <summary> Saves the whole database. </summary>
public void Save()
{
using (PlayerDB.GetWriteLock()) {
var playersToUpdate = PlayerDB.List.Where(p => p.Changed);
using (MySqlTransaction transaction = connection.BeginTransaction()) {
MySqlCommand cmd = null;
foreach (PlayerInfo info in playersToUpdate)
{
lock (info.SyncRoot) {
info.Changed = false;
cmd = GetUpdateCommand(info);
}
cmd.Transaction = transaction;
cmd.ExecuteNonQuery();
}
if (cmd != null)
{
transaction.Commit();
cmd.Transaction = null;
}
}
}
}
