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executable file
·248 lines (199 loc) · 5.84 KB
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<?php
/*
This file is part of BotQueue.
BotQueue is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
BotQueue is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with BotQueue. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @param $key string
* @return DatabaseSocket
*/
function db($key = null)
{
return Database::getSocket($key);
}
class Database
{
private static $sockets = array();
private function __construct()
{
}
/**
* @param $key string
* @return DatabaseSocket
*/
public static function getSocket($key = null)
{
if ($key === null)
$key = 'main';
//RR_DB_USER, RR_DB_PASS, RR_DB_HOST and RR_DB_PORT are global variables in extensions/config.php
if (self::$sockets[$key] === null)
self::$sockets[$key] = new DatabaseSocket(RR_DB_USER, RR_DB_PASS, RR_DB_HOST, RR_DB_PORT);
return self::$sockets[$key];
}
}
class DatabaseSocket
{
/** @var PDO $db */
private $db;
private $user;
private $pass;
private $host;
private $port;
private static $executes = array();
private static $queries = array();
private static $inserts = array();
public function __construct($user, $pass = null, $host = 'localhost', $port = 3306)
{
$this->user = $user;
$this->pass = $pass;
$this->host = $host;
$this->port = $port;
$this->database = RR_DB_NAME;
//Call the function to connect to the MySQL server
$this->reconnect();
}
//This method actually calls the mysql_connect function to connect to the server and select the database
//The link property of this object is set to the identifier returned by mysql_connect
public function reconnect()
{
try {
ob_start();
$connect = "mysql:host=$this->host;dbname=".$this->database.";charset=utf8";
$this->db = new PDO($connect, $this->user, $this->pass);
$this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$this->db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
ob_end_clean();
} catch (PDOException $e) {
throw new Exception("Failed to connect to database!");
}
}
public function selectDb($database_name) {
if($this->database !== $database_name) {
$this->database = $database_name;
$this->reconnect();
}
}
public function beginTransaction() {
return $this->db->beginTransaction();
}
public function commit() {
return $this->db->commit();
}
public function rollBack() {
return $this->db->rollBack();
}
public function prepare($sql) {
return $this->db->prepare($sql);
}
public function insert($sql, $data = array())
{
if (TRACK_SQL_QUERIES)
self::$inserts[] = array($sql, $data);
// prepared statements rock
$stmt = $this->prepare($sql);
$stmt->execute($data);
return $this->db->lastInsertId();
}
public function execute($sql, $data = array())
{
if (TRACK_SQL_QUERIES)
self::$executes[] = array($sql, $data);
// prepared statements rock
$stmt = $this->prepare($sql);
$stmt->execute($data);
return $stmt->rowCount();
}
public function ping()
{
// $pingSql = "SELECT 1";
//
// try {
// $this->query($pingSql);
// } catch (PDOException $e) {
// $this->reconnect();
// }
}
public function query($sql, $data = array())
{
if (TRACK_SQL_QUERIES)
self::$queries[] = $sql;
try {
$stmt = $this->db->prepare($sql);
$stmt->execute($data);
return $stmt;
} catch(PDOException $e) {
trigger_error("MySQL Error (". $e->getCode() ."): ". $e->errorInfo . " for SQL Code: ". $sql);
}
// We should never get here because of trigger_error
return null;
}
public function getArray($sql, $params = array())
{
//okay, load it from db.
//$rs now contains a resource that can be used to extract the results of the query
$stmt = $this->query($sql, $params);
//snag it - populate the $data array with the results of the mysql output
//$data is a numerically indexed array where each row corresponds to one row of MySQL output
//Each value (row) in data contains an associative array for a given row of MySQL output, for example: array('id' => '1', 'user_id' => '5', ...)
//So now $data looks like this:
// $data[0] = array('id' => '1', 'user_id' => '5', ...)
// $data[1] = array('id' => '2', 'user_id' => '6', ...)
// ...
$data = array();
while ($row = $stmt->fetch(PDO::FETCH_ASSOC))
$data[] = $row;
//return the $data array, which contains the results of the mysql query
return $data;
}
public function getRow($sql, $params = array())
{
$this->ping();
//okay, load it from db.
$stmt = $this->query($sql, $params);
/** @var $data array */
$data = $stmt->fetch(PDO::FETCH_ASSOC);
//error?
//if (mysql_error())
// trigger_error(mysql_error() . ": $sql");
return $data;
}
public function getValue($sql, $params = array())
{
$row = $this->getRow($sql, $params);
if (is_array($row) && count($row))
return array_shift($row);
return null;
}
public static function drawDbStats()
{
echo "\nDB Activity.\n";
if (!empty(self::$queries)) {
echo "Queries:\n";
foreach (self::$queries AS $query)
echo str_replace("\t", "", trim($query)) . "\n\n";
} else
echo "No queries.\n";
if (!empty(self::$inserts)) {
echo "Inserts:\n";
foreach (self::$inserts AS $query)
echo str_replace("\t", "", trim($query)) . "\n\n";
} else
echo "No inserts.\n";
if (!empty(self::$executes)) {
echo "Updates/Deletes:\n";
foreach (self::$executes AS $query)
echo str_replace("\t", "", trim($query)) . "\n\n";
} else
echo "No updates/deletes.\n";
echo "\n";
}
}