Player data to Database (#5475)

* Player data to Database

Add player data into databases (SQLite3 & PG only)

PostgreSQL & SQLite: better POO Design for databases

Add --migrate-players argument to server + deprecation warning

* Remove players directory if empty

1 files changed, 364 insertions, 35 deletions

diff --git a/src/database-sqlite3.cpp b/src/database-sqlite3.cpp
index 095d485c0..714f56c39 100644
--- a/src/database-sqlite3.cpp
+++ b/src/database-sqlite3.cpp
@@ -33,6 +33,8 @@ SQLite format specification:
 #include "settings.h"
 #include "porting.h"
 #include "util/string.h"
+#include "content_sao.h"
+#include "remoteplayer.h"
 
 #include <cassert>
 
@@ -111,27 +113,26 @@ int Database_SQLite3::busyHandler(void *data, int count)
 }
 
 
-Database_SQLite3::Database_SQLite3(const std::string &savedir) :
+Database_SQLite3::Database_SQLite3(const std::string &savedir, const std::string &dbname) :
+	m_database(NULL),
 	m_initialized(false),
 	m_savedir(savedir),
-	m_database(NULL),
-	m_stmt_read(NULL),
-	m_stmt_write(NULL),
-	m_stmt_list(NULL),
-	m_stmt_delete(NULL),
+	m_dbname(dbname),
 	m_stmt_begin(NULL),
 	m_stmt_end(NULL)
 {
 }
 
-void Database_SQLite3::beginSave() {
+void Database_SQLite3::beginSave()
+{
 	verifyDatabase();
 	SQLRES(sqlite3_step(m_stmt_begin), SQLITE_DONE,
 		"Failed to start SQLite3 transaction");
 	sqlite3_reset(m_stmt_begin);
 }
 
-void Database_SQLite3::endSave() {
+void Database_SQLite3::endSave()
+{
 	verifyDatabase();
 	SQLRES(sqlite3_step(m_stmt_end), SQLITE_DONE,
 		"Failed to commit SQLite3 transaction");
@@ -142,7 +143,7 @@ void Database_SQLite3::openDatabase()
 {
 	if (m_database) return;
 
-	std::string dbp = m_savedir + DIR_DELIM + "map.sqlite";
+	std::string dbp = m_savedir + DIR_DELIM + m_dbname + ".sqlite";
 
 	// Open the database connection
 
@@ -170,6 +171,8 @@ void Database_SQLite3::openDatabase()
 			 + itos(g_settings->getU16("sqlite_synchronous"));
 	SQLOK(sqlite3_exec(m_database, query_str.c_str(), NULL, NULL, NULL),
 		"Failed to modify sqlite3 synchronous mode");
+	SQLOK(sqlite3_exec(m_database, "PRAGMA foreign_keys = ON", NULL, NULL, NULL),
+		"Failed to enable sqlite3 foreign key support");
 }
 
 void Database_SQLite3::verifyDatabase()
@@ -178,8 +181,61 @@ void Database_SQLite3::verifyDatabase()
 
 	openDatabase();
 
-	PREPARE_STATEMENT(begin, "BEGIN");
-	PREPARE_STATEMENT(end, "COMMIT");
+	PREPARE_STATEMENT(begin, "BEGIN;");
+	PREPARE_STATEMENT(end, "COMMIT;");
+
+	initStatements();
+
+	m_initialized = true;
+}
+
+Database_SQLite3::~Database_SQLite3()
+{
+	FINALIZE_STATEMENT(m_stmt_begin)
+	FINALIZE_STATEMENT(m_stmt_end)
+
+	SQLOK_ERRSTREAM(sqlite3_close(m_database), "Failed to close database");
+}
+
+/*
+ * Map database
+ */
+
+MapDatabaseSQLite3::MapDatabaseSQLite3(const std::string &savedir):
+	Database_SQLite3(savedir, "map"),
+	MapDatabase(),
+	m_stmt_read(NULL),
+	m_stmt_write(NULL),
+	m_stmt_list(NULL),
+	m_stmt_delete(NULL)
+{
+
+}
+
+MapDatabaseSQLite3::~MapDatabaseSQLite3()
+{
+	FINALIZE_STATEMENT(m_stmt_read)
+	FINALIZE_STATEMENT(m_stmt_write)
+	FINALIZE_STATEMENT(m_stmt_list)
+	FINALIZE_STATEMENT(m_stmt_delete)
+}
+
+
+void MapDatabaseSQLite3::createDatabase()
+{
+	assert(m_database); // Pre-condition
+
+	SQLOK(sqlite3_exec(m_database,
+		"CREATE TABLE IF NOT EXISTS `blocks` (\n"
+			"	`pos` INT PRIMARY KEY,\n"
+			"	`data` BLOB\n"
+			");\n",
+		NULL, NULL, NULL),
+		"Failed to create database table");
+}
+
+void MapDatabaseSQLite3::initStatements()
+{
 	PREPARE_STATEMENT(read, "SELECT `data` FROM `blocks` WHERE `pos` = ? LIMIT 1");
 #ifdef __ANDROID__
 	PREPARE_STATEMENT(write,  "INSERT INTO `blocks` (`pos`, `data`) VALUES (?, ?)");
@@ -189,18 +245,16 @@ void Database_SQLite3::verifyDatabase()
 	PREPARE_STATEMENT(delete, "DELETE FROM `blocks` WHERE `pos` = ?");
 	PREPARE_STATEMENT(list, "SELECT `pos` FROM `blocks`");
 
-	m_initialized = true;
-
 	verbosestream << "ServerMap: SQLite3 database opened." << std::endl;
 }
 
-inline void Database_SQLite3::bindPos(sqlite3_stmt *stmt, const v3s16 &pos, int index)
+inline void MapDatabaseSQLite3::bindPos(sqlite3_stmt *stmt, const v3s16 &pos, int index)
 {
 	SQLOK(sqlite3_bind_int64(stmt, index, getBlockAsInteger(pos)),
 		"Internal error: failed to bind query at " __FILE__ ":" TOSTRING(__LINE__));
 }
 
-bool Database_SQLite3::deleteBlock(const v3s16 &pos)
+bool MapDatabaseSQLite3::deleteBlock(const v3s16 &pos)
 {
 	verifyDatabase();
 
@@ -216,7 +270,7 @@ bool Database_SQLite3::deleteBlock(const v3s16 &pos)
 	return good;
 }
 
-bool Database_SQLite3::saveBlock(const v3s16 &pos, const std::string &data)
+bool MapDatabaseSQLite3::saveBlock(const v3s16 &pos, const std::string &data)
 {
 	verifyDatabase();
 
@@ -243,7 +297,7 @@ bool Database_SQLite3::saveBlock(const v3s16 &pos, const std::string &data)
 	return true;
 }
 
-void Database_SQLite3::loadBlock(const v3s16 &pos, std::string *block)
+void MapDatabaseSQLite3::loadBlock(const v3s16 &pos, std::string *block)
 {
 	verifyDatabase();
 
@@ -264,37 +318,312 @@ void Database_SQLite3::loadBlock(const v3s16 &pos, std::string *block)
 	sqlite3_reset(m_stmt_read);
 }
 
-void Database_SQLite3::createDatabase()
+void MapDatabaseSQLite3::listAllLoadableBlocks(std::vector<v3s16> &dst)
+{
+	verifyDatabase();
+
+	while (sqlite3_step(m_stmt_list) == SQLITE_ROW)
+		dst.push_back(getIntegerAsBlock(sqlite3_column_int64(m_stmt_list, 0)));
+
+	sqlite3_reset(m_stmt_list);
+}
+
+/*
+ * Player Database
+ */
+
+PlayerDatabaseSQLite3::PlayerDatabaseSQLite3(const std::string &savedir):
+	Database_SQLite3(savedir, "players"),
+	PlayerDatabase(),
+	m_stmt_player_load(NULL),
+	m_stmt_player_add(NULL),
+	m_stmt_player_update(NULL),
+	m_stmt_player_remove(NULL),
+	m_stmt_player_list(NULL),
+	m_stmt_player_load_inventory(NULL),
+	m_stmt_player_load_inventory_items(NULL),
+	m_stmt_player_add_inventory(NULL),
+	m_stmt_player_add_inventory_items(NULL),
+	m_stmt_player_remove_inventory(NULL),
+	m_stmt_player_remove_inventory_items(NULL),
+	m_stmt_player_metadata_load(NULL),
+	m_stmt_player_metadata_remove(NULL),
+	m_stmt_player_metadata_add(NULL)
+{
+
+}
+PlayerDatabaseSQLite3::~PlayerDatabaseSQLite3()
+{
+	FINALIZE_STATEMENT(m_stmt_player_load)
+	FINALIZE_STATEMENT(m_stmt_player_add)
+	FINALIZE_STATEMENT(m_stmt_player_update)
+	FINALIZE_STATEMENT(m_stmt_player_remove)
+	FINALIZE_STATEMENT(m_stmt_player_list)
+	FINALIZE_STATEMENT(m_stmt_player_add_inventory)
+	FINALIZE_STATEMENT(m_stmt_player_add_inventory_items)
+	FINALIZE_STATEMENT(m_stmt_player_remove_inventory)
+	FINALIZE_STATEMENT(m_stmt_player_remove_inventory_items)
+	FINALIZE_STATEMENT(m_stmt_player_load_inventory)
+	FINALIZE_STATEMENT(m_stmt_player_load_inventory_items)
+	FINALIZE_STATEMENT(m_stmt_player_metadata_load)
+	FINALIZE_STATEMENT(m_stmt_player_metadata_add)
+	FINALIZE_STATEMENT(m_stmt_player_metadata_remove)
+};
+
+
+void PlayerDatabaseSQLite3::createDatabase()
 {
 	assert(m_database); // Pre-condition
+
 	SQLOK(sqlite3_exec(m_database,
-		"CREATE TABLE IF NOT EXISTS `blocks` (\n"
-		"	`pos` INT PRIMARY KEY,\n"
-		"	`data` BLOB\n"
-		");\n",
+		"CREATE TABLE IF NOT EXISTS `player` ("
+			"`name` VARCHAR(50) NOT NULL,"
+			"`pitch` NUMERIC(11, 4) NOT NULL,"
+			"`yaw` NUMERIC(11, 4) NOT NULL,"
+			"`posX` NUMERIC(11, 4) NOT NULL,"
+			"`posY` NUMERIC(11, 4) NOT NULL,"
+			"`posZ` NUMERIC(11, 4) NOT NULL,"
+			"`hp` INT NOT NULL,"
+			"`breath` INT NOT NULL,"
+			"`creation_date` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,"
+			"`modification_date` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,"
+			"PRIMARY KEY (`name`));",
 		NULL, NULL, NULL),
-		"Failed to create database table");
+		"Failed to create player table");
+
+	SQLOK(sqlite3_exec(m_database,
+		"CREATE TABLE IF NOT EXISTS `player_metadata` ("
+			"    `player` VARCHAR(50) NOT NULL,"
+			"    `metadata` VARCHAR(256) NOT NULL,"
+			"    `value` TEXT,"
+			"    PRIMARY KEY(`player`, `metadata`),"
+			"    FOREIGN KEY (`player`) REFERENCES player (`name`) ON DELETE CASCADE );",
+		NULL, NULL, NULL),
+		"Failed to create player metadata table");
+
+	SQLOK(sqlite3_exec(m_database,
+		"CREATE TABLE IF NOT EXISTS `player_inventories` ("
+			"   `player` VARCHAR(50) NOT NULL,"
+			"	`inv_id` INT NOT NULL,"
+			"	`inv_width` INT NOT NULL,"
+			"	`inv_name` TEXT NOT NULL DEFAULT '',"
+			"	`inv_size` INT NOT NULL,"
+			"	PRIMARY KEY(player, inv_id),"
+			"   FOREIGN KEY (`player`) REFERENCES player (`name`) ON DELETE CASCADE );",
+		NULL, NULL, NULL),
+		"Failed to create player inventory table");
+
+	SQLOK(sqlite3_exec(m_database,
+		"CREATE TABLE `player_inventory_items` ("
+			"   `player` VARCHAR(50) NOT NULL,"
+			"	`inv_id` INT NOT NULL,"
+			"	`slot_id` INT NOT NULL,"
+			"	`item` TEXT NOT NULL DEFAULT '',"
+			"	PRIMARY KEY(player, inv_id, slot_id),"
+			"   FOREIGN KEY (`player`) REFERENCES player (`name`) ON DELETE CASCADE );",
+		NULL, NULL, NULL),
+		"Failed to create player inventory items table");
 }
 
-void Database_SQLite3::listAllLoadableBlocks(std::vector<v3s16> &dst)
+void PlayerDatabaseSQLite3::initStatements()
+{
+	PREPARE_STATEMENT(player_load, "SELECT `pitch`, `yaw`, `posX`, `posY`, `posZ`, `hp`, "
+		"`breath`"
+		"FROM `player` WHERE `name` = ?")
+	PREPARE_STATEMENT(player_add, "INSERT INTO `player` (`name`, `pitch`, `yaw`, `posX`, "
+		"`posY`, `posZ`, `hp`, `breath`) VALUES (?, ?, ?, ?, ?, ?, ?, ?)")
+	PREPARE_STATEMENT(player_update, "UPDATE `player` SET `pitch` = ?, `yaw` = ?, "
+			"`posX` = ?, `posY` = ?, `posZ` = ?, `hp` = ?, `breath` = ?, "
+			"`modification_date` = CURRENT_TIMESTAMP WHERE `name` = ?")
+	PREPARE_STATEMENT(player_remove, "DELETE FROM `player` WHERE `name` = ?")
+	PREPARE_STATEMENT(player_list, "SELECT `name` FROM `player`")
+
+	PREPARE_STATEMENT(player_add_inventory, "INSERT INTO `player_inventories` "
+		"(`player`, `inv_id`, `inv_width`, `inv_name`, `inv_size`) VALUES (?, ?, ?, ?, ?)")
+	PREPARE_STATEMENT(player_add_inventory_items, "INSERT INTO `player_inventory_items` "
+		"(`player`, `inv_id`, `slot_id`, `item`) VALUES (?, ?, ?, ?)")
+	PREPARE_STATEMENT(player_remove_inventory, "DELETE FROM `player_inventories` "
+		"WHERE `player` = ?")
+	PREPARE_STATEMENT(player_remove_inventory_items, "DELETE FROM `player_inventory_items` "
+		"WHERE `player` = ?")
+	PREPARE_STATEMENT(player_load_inventory, "SELECT `inv_id`, `inv_width`, `inv_name`, "
+		"`inv_size` FROM `player_inventories` WHERE `player` = ? ORDER BY inv_id")
+	PREPARE_STATEMENT(player_load_inventory_items, "SELECT `slot_id`, `item` "
+		"FROM `player_inventory_items` WHERE `player` = ? AND `inv_id` = ?")
+
+	PREPARE_STATEMENT(player_metadata_load, "SELECT `metadata`, `value` FROM "
+		"`player_metadata` WHERE `player` = ?")
+	PREPARE_STATEMENT(player_metadata_add, "INSERT INTO `player_metadata` "
+		"(`player`, `metadata`, `value`) VALUES (?, ?, ?)")
+	PREPARE_STATEMENT(player_metadata_remove, "DELETE FROM `player_metadata` "
+		"WHERE `player` = ?")
+	verbosestream << "ServerEnvironment: SQLite3 database opened (players)." << std::endl;
+}
+
+bool PlayerDatabaseSQLite3::playerDataExists(const std::string &name)
 {
 	verifyDatabase();
+	str_to_sqlite(m_stmt_player_load, 1, name);
+	bool res = (sqlite3_step(m_stmt_player_load) == SQLITE_ROW);
+	sqlite3_reset(m_stmt_player_load);
+	return res;
+}
 
-	while (sqlite3_step(m_stmt_list) == SQLITE_ROW) {
-		dst.push_back(getIntegerAsBlock(sqlite3_column_int64(m_stmt_list, 0)));
+void PlayerDatabaseSQLite3::savePlayer(RemotePlayer *player)
+{
+	PlayerSAO* sao = player->getPlayerSAO();
+	sanity_check(sao);
+
+	const v3f &pos = sao->getBasePosition();
+	// Begin save in brace is mandatory
+	if (!playerDataExists(player->getName())) {
+		beginSave();
+		str_to_sqlite(m_stmt_player_add, 1, player->getName());
+		double_to_sqlite(m_stmt_player_add, 2, sao->getPitch());
+		double_to_sqlite(m_stmt_player_add, 3, sao->getYaw());
+		double_to_sqlite(m_stmt_player_add, 4, pos.X);
+		double_to_sqlite(m_stmt_player_add, 5, pos.Y);
+		double_to_sqlite(m_stmt_player_add, 6, pos.Z);
+		int64_to_sqlite(m_stmt_player_add, 7, sao->getHP());
+		int64_to_sqlite(m_stmt_player_add, 8, sao->getBreath());
+
+		sqlite3_vrfy(sqlite3_step(m_stmt_player_add), SQLITE_DONE);
+		sqlite3_reset(m_stmt_player_add);
+	} else {
+		beginSave();
+		double_to_sqlite(m_stmt_player_update, 1, sao->getPitch());
+		double_to_sqlite(m_stmt_player_update, 2, sao->getYaw());
+		double_to_sqlite(m_stmt_player_update, 3, pos.X);
+		double_to_sqlite(m_stmt_player_update, 4, pos.Y);
+		double_to_sqlite(m_stmt_player_update, 5, pos.Z);
+		int64_to_sqlite(m_stmt_player_update, 6, sao->getHP());
+		int64_to_sqlite(m_stmt_player_update, 7, sao->getBreath());
+		str_to_sqlite(m_stmt_player_update, 8, player->getName());
+
+		sqlite3_vrfy(sqlite3_step(m_stmt_player_update), SQLITE_DONE);
+		sqlite3_reset(m_stmt_player_update);
 	}
-	sqlite3_reset(m_stmt_list);
+
+	// Write player inventories
+	str_to_sqlite(m_stmt_player_remove_inventory, 1, player->getName());
+	sqlite3_vrfy(sqlite3_step(m_stmt_player_remove_inventory), SQLITE_DONE);
+	sqlite3_reset(m_stmt_player_remove_inventory);
+
+	str_to_sqlite(m_stmt_player_remove_inventory_items, 1, player->getName());
+	sqlite3_vrfy(sqlite3_step(m_stmt_player_remove_inventory_items), SQLITE_DONE);
+	sqlite3_reset(m_stmt_player_remove_inventory_items);
+
+	std::vector<const InventoryList*> inventory_lists = sao->getInventory()->getLists();
+	for (u16 i = 0; i < inventory_lists.size(); i++) {
+		const InventoryList* list = inventory_lists[i];
+
+		str_to_sqlite(m_stmt_player_add_inventory, 1, player->getName());
+		int_to_sqlite(m_stmt_player_add_inventory, 2, i);
+		int_to_sqlite(m_stmt_player_add_inventory, 3, list->getWidth());
+		str_to_sqlite(m_stmt_player_add_inventory, 4, list->getName());
+		int_to_sqlite(m_stmt_player_add_inventory, 5, list->getSize());
+		sqlite3_vrfy(sqlite3_step(m_stmt_player_add_inventory), SQLITE_DONE);
+		sqlite3_reset(m_stmt_player_add_inventory);
+
+		for (u32 j = 0; j < list->getSize(); j++) {
+			std::ostringstream os;
+			list->getItem(j).serialize(os);
+			std::string itemStr = os.str();
+
+			str_to_sqlite(m_stmt_player_add_inventory_items, 1, player->getName());
+			int_to_sqlite(m_stmt_player_add_inventory_items, 2, i);
+			int_to_sqlite(m_stmt_player_add_inventory_items, 3, j);
+			str_to_sqlite(m_stmt_player_add_inventory_items, 4, itemStr);
+			sqlite3_vrfy(sqlite3_step(m_stmt_player_add_inventory_items), SQLITE_DONE);
+			sqlite3_reset(m_stmt_player_add_inventory_items);
+		}
+	}
+
+	str_to_sqlite(m_stmt_player_metadata_remove, 1, player->getName());
+	sqlite3_vrfy(sqlite3_step(m_stmt_player_metadata_remove), SQLITE_DONE);
+	sqlite3_reset(m_stmt_player_metadata_remove);
+
+	const PlayerAttributes &attrs = sao->getExtendedAttributes();
+	for (PlayerAttributes::const_iterator it = attrs.begin(); it != attrs.end(); ++it) {
+		str_to_sqlite(m_stmt_player_metadata_add, 1, player->getName());
+		str_to_sqlite(m_stmt_player_metadata_add, 2, it->first);
+		str_to_sqlite(m_stmt_player_metadata_add, 3, it->second);
+		sqlite3_vrfy(sqlite3_step(m_stmt_player_metadata_add), SQLITE_DONE);
+		sqlite3_reset(m_stmt_player_metadata_add);
+	}
+
+	endSave();
 }
 
-Database_SQLite3::~Database_SQLite3()
+bool PlayerDatabaseSQLite3::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
 {
-	FINALIZE_STATEMENT(m_stmt_read)
-	FINALIZE_STATEMENT(m_stmt_write)
-	FINALIZE_STATEMENT(m_stmt_list)
-	FINALIZE_STATEMENT(m_stmt_begin)
-	FINALIZE_STATEMENT(m_stmt_end)
-	FINALIZE_STATEMENT(m_stmt_delete)
+	verifyDatabase();
 
-	SQLOK_ERRSTREAM(sqlite3_close(m_database), "Failed to close database");
+	str_to_sqlite(m_stmt_player_load, 1, player->getName());
+	if (sqlite3_step(m_stmt_player_load) != SQLITE_ROW) {
+		sqlite3_reset(m_stmt_player_load);
+		return false;
+	}
+	sao->setPitch(sqlite_to_float(m_stmt_player_load, 0));
+	sao->setYaw(sqlite_to_float(m_stmt_player_load, 1));
+	sao->setBasePosition(sqlite_to_v3f(m_stmt_player_load, 2));
+	sao->setHPRaw((s16) MYMIN(sqlite_to_int(m_stmt_player_load, 5), S16_MAX));
+	sao->setBreath((u16) MYMIN(sqlite_to_int(m_stmt_player_load, 6), U16_MAX), false);
+	sqlite3_reset(m_stmt_player_load);
+
+	// Load inventory
+	str_to_sqlite(m_stmt_player_load_inventory, 1, player->getName());
+	while (sqlite3_step(m_stmt_player_load_inventory) == SQLITE_ROW) {
+		InventoryList *invList = player->inventory.addList(
+			sqlite_to_string(m_stmt_player_load_inventory, 2),
+			sqlite_to_uint(m_stmt_player_load_inventory, 3));
+		invList->setWidth(sqlite_to_uint(m_stmt_player_load_inventory, 1));
+
+		u32 invId = sqlite_to_uint(m_stmt_player_load_inventory, 0);
+
+		str_to_sqlite(m_stmt_player_load_inventory_items, 1, player->getName());
+		int_to_sqlite(m_stmt_player_load_inventory_items, 2, invId);
+		while (sqlite3_step(m_stmt_player_load_inventory_items) == SQLITE_ROW) {
+			const std::string itemStr = sqlite_to_string(m_stmt_player_load_inventory_items, 1);
+			if (itemStr.length() > 0) {
+				ItemStack stack;
+				stack.deSerialize(itemStr);
+				invList->addItem(sqlite_to_uint(m_stmt_player_load_inventory_items, 0), stack);
+			}
+		}
+		sqlite3_reset(m_stmt_player_load_inventory_items);
+	}
+
+	sqlite3_reset(m_stmt_player_load_inventory);
+
+	str_to_sqlite(m_stmt_player_metadata_load, 1, sao->getPlayer()->getName());
+	while (sqlite3_step(m_stmt_player_metadata_load) == SQLITE_ROW) {
+		std::string attr = sqlite_to_string(m_stmt_player_metadata_load, 0);
+		std::string value = sqlite_to_string(m_stmt_player_metadata_load, 1);
+
+		sao->setExtendedAttribute(attr, value);
+	}
+	sqlite3_reset(m_stmt_player_metadata_load);
+	return true;
+}
+
+bool PlayerDatabaseSQLite3::removePlayer(const std::string &name)
+{
+	if (!playerDataExists(name))
+		return false;
+
+	str_to_sqlite(m_stmt_player_remove, 1, name);
+	sqlite3_vrfy(sqlite3_step(m_stmt_player_remove), SQLITE_DONE);
+	sqlite3_reset(m_stmt_player_remove);
+	return true;
 }
 
+void PlayerDatabaseSQLite3::listPlayers(std::vector<std::string> &res)
+{
+	verifyDatabase();
+
+	while (sqlite3_step(m_stmt_player_list) == SQLITE_ROW)
+		res.push_back(sqlite_to_string(m_stmt_player_list, 0));
+
+	sqlite3_reset(m_stmt_player_list);
+}