mirror of https://tt-rss.org/git/tt-rss.git
126 lines
2.6 KiB
PHP
Executable File
126 lines
2.6 KiB
PHP
Executable File
<?php
|
|
class Db
|
|
{
|
|
|
|
/* @var Db $instance */
|
|
private static $instance;
|
|
|
|
/* @var IDb $adapter */
|
|
private $adapter;
|
|
|
|
private $link;
|
|
|
|
/* @var PDO $pdo */
|
|
private $pdo;
|
|
|
|
private function __clone() {
|
|
//
|
|
}
|
|
|
|
private function legacy_connect() {
|
|
|
|
user_error("Legacy connect requested to " . DB_TYPE, E_USER_NOTICE);
|
|
|
|
$er = error_reporting(E_ALL);
|
|
|
|
switch (DB_TYPE) {
|
|
case "mysql":
|
|
$this->adapter = new Db_Mysqli();
|
|
break;
|
|
case "pgsql":
|
|
$this->adapter = new Db_Pgsql();
|
|
break;
|
|
default:
|
|
die("Unknown DB_TYPE: " . DB_TYPE);
|
|
}
|
|
|
|
if (!$this->adapter) {
|
|
print("Error initializing database adapter for " . DB_TYPE);
|
|
exit(100);
|
|
}
|
|
|
|
$this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, defined('DB_PORT') ? DB_PORT : "");
|
|
|
|
if (!$this->link) {
|
|
print("Error connecting through adapter: " . $this->adapter->last_error());
|
|
exit(101);
|
|
}
|
|
|
|
error_reporting($er);
|
|
}
|
|
|
|
// this really shouldn't be used unless a separate PDO connection is needed
|
|
// normal usage is Db::pdo()->prepare(...) etc
|
|
public function pdo_connect() {
|
|
|
|
$db_port = defined('DB_PORT') && DB_PORT ? ';port=' . DB_PORT : '';
|
|
$db_host = defined('DB_HOST') && DB_HOST ? ';host=' . DB_HOST : '';
|
|
|
|
try {
|
|
$pdo = new PDO(DB_TYPE . ':dbname=' . DB_NAME . $db_host . $db_port,
|
|
DB_USER,
|
|
DB_PASS);
|
|
} catch (Exception $e) {
|
|
print "<pre>Exception while creating PDO object:" . $e->getMessage() . "</pre>";
|
|
exit(101);
|
|
}
|
|
|
|
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
|
|
|
|
if (DB_TYPE == "pgsql") {
|
|
|
|
$pdo->query("set client_encoding = 'UTF-8'");
|
|
$pdo->query("set datestyle = 'ISO, european'");
|
|
$pdo->query("set TIME ZONE 0");
|
|
$pdo->query("set cpu_tuple_cost = 0.5");
|
|
|
|
} else if (DB_TYPE == "mysql") {
|
|
$pdo->query("SET time_zone = '+0:0'");
|
|
|
|
if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
|
|
$pdo->query("SET NAMES " . MYSQL_CHARSET);
|
|
}
|
|
}
|
|
|
|
return $pdo;
|
|
}
|
|
|
|
public static function instance() {
|
|
if (self::$instance == null)
|
|
self::$instance = new self();
|
|
|
|
return self::$instance;
|
|
}
|
|
|
|
public static function get() {
|
|
if (self::$instance == null)
|
|
self::$instance = new self();
|
|
|
|
if (!self::$instance->adapter) {
|
|
self::$instance->legacy_connect();
|
|
}
|
|
|
|
return self::$instance->adapter;
|
|
}
|
|
|
|
public static function pdo() {
|
|
if (self::$instance == null)
|
|
self::$instance = new self();
|
|
|
|
if (!self::$instance->pdo) {
|
|
self::$instance->pdo = self::$instance->pdo_connect();
|
|
}
|
|
|
|
return self::$instance->pdo;
|
|
}
|
|
|
|
public static function sql_random_function() {
|
|
if (DB_TYPE == "mysql") {
|
|
return "RAND()";
|
|
} else {
|
|
return "RANDOM()";
|
|
}
|
|
}
|
|
|
|
}
|