79 lines
1.8 KiB
PHP
Executable File
79 lines
1.8 KiB
PHP
Executable File
<?php
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class Db
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{
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/* @var Db $instance */
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private static $instance;
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private $link;
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/* @var PDO $pdo */
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private $pdo;
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private function __clone() {
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//
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}
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// this really shouldn't be used unless a separate PDO connection is needed
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// normal usage is Db::pdo()->prepare(...) etc
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public function pdo_connect() {
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$db_port = Config::get(Config::DB_PORT) ? ';port=' . Config::get(Config::DB_PORT) : '';
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$db_host = Config::get(Config::DB_HOST) ? ';host=' . Config::get(Config::DB_HOST) : '';
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try {
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$pdo = new PDO(Config::get(Config::DB_TYPE) . ':dbname=' . Config::get(Config::DB_NAME) . $db_host . $db_port,
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Config::get(Config::DB_USER),
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Config::get(Config::DB_PASS));
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} catch (Exception $e) {
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print "<pre>Exception while creating PDO object:" . $e->getMessage() . "</pre>";
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exit(101);
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}
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$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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if (Config::get(Config::DB_TYPE) == "pgsql") {
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$pdo->query("set client_encoding = 'UTF-8'");
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$pdo->query("set datestyle = 'ISO, european'");
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$pdo->query("set TIME ZONE 0");
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$pdo->query("set cpu_tuple_cost = 0.5");
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} else if (Config::get(Config::DB_TYPE) == "mysql") {
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$pdo->query("SET time_zone = '+0:0'");
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if (Config::get(Config::MYSQL_CHARSET)) {
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$pdo->query("SET NAMES " . Config::get(Config::MYSQL_CHARSET));
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}
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}
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return $pdo;
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}
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public static function instance() {
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if (self::$instance == null)
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self::$instance = new self();
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return self::$instance;
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}
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public static function pdo() : PDO {
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if (self::$instance == null)
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self::$instance = new self();
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if (!self::$instance->pdo) {
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self::$instance->pdo = self::$instance->pdo_connect();
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}
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return self::$instance->pdo;
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}
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public static function sql_random_function() {
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if (Config::get(Config::DB_TYPE) == "mysql") {
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return "RAND()";
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} else {
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return "RANDOM()";
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}
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}
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}
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