<?php
-class Db implements IDb {
+class Db
+{
+
+ /* @var Db $instance */
private static $instance;
+
+ /* @var IDb $adapter */
private $adapter;
+
private $link;
- private function __construct() {
- switch (DB_TYPE) {
- case "mysql":
- $this->adapter = new Db_Mysql();
- break;
- case "pgsql":
- $this->adapter = new Db_Pgsql();
- break;
- default:
- die("Unknown DB_TYPE: " . DB_TYPE);
- }
-
- $this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT);
- }
+ /* @var PDO $pdo */
+ private $pdo;
private function __clone() {
//
}
- public static function get() {
- if (self::$instance == null)
- self::$instance = new self();
+ private function legacy_connect() {
- return self::$instance;
- }
+ user_error("Legacy connect requested to " . DB_TYPE, E_USER_NOTICE);
- static function quote($str){
- return("'$str'");
- }
+ $er = error_reporting(E_ALL);
- function connect($host, $user, $pass, $db, $port) {
- //return $this->adapter->connect($host, $user, $pass, $db, $port);
- return ;
- }
+ switch (DB_TYPE) {
+ case "mysql":
+ $this->adapter = new Db_Mysqli();
+ break;
+ case "pgsql":
+ $this->adapter = new Db_Pgsql();
+ break;
+ default:
+ die("Unknown DB_TYPE: " . DB_TYPE);
+ }
- function escape_string($s, $strip_tags = true) {
- return $this->adapter->escape_string($s, $strip_tags);
- }
+ if (!$this->adapter) {
+ print("Error initializing database adapter for " . DB_TYPE);
+ exit(100);
+ }
- function query($query, $die_on_error = true) {
- return $this->adapter->query($query, $die_on_error);
- }
+ $this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, defined('DB_PORT') ? DB_PORT : "");
- function fetch_assoc($result) {
- return $this->adapter->fetch_assoc($result);
- }
+ if (!$this->link) {
+ print("Error connecting through adapter: " . $this->adapter->last_error());
+ exit(101);
+ }
- function num_rows($result) {
- return $this->adapter->num_rows($result);
+ error_reporting($er);
}
- function fetch_result($result, $row, $param) {
- return $this->adapter->fetch_result($result, $row, $param);
- }
+ private function pdo_connect() {
- function close() {
- return $this->adapter->close();
- }
+ $db_port = defined('DB_PORT') && DB_PORT ? ';port=' . DB_PORT : '';
+ $db_host = defined('DB_HOST') && DB_HOST ? ';host=' . DB_HOST : '';
+
+ try {
+ $this->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);
+ }
+
+ $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
+
+ if (DB_TYPE == "pgsql") {
- function affected_rows($result) {
- return $this->adapter->affected_rows($result);
+ $this->pdo->query("set client_encoding = 'UTF-8'");
+ $this->pdo->query("set datestyle = 'ISO, european'");
+ $this->pdo->query("set TIME ZONE 0");
+ $this->pdo->query("set cpu_tuple_cost = 0.5");
+
+ } else if (DB_TYPE == "mysql") {
+ $this->pdo->query("SET time_zone = '+0:0'");
+
+ if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
+ $this->pdo->query("SET NAMES " . MYSQL_CHARSET);
+ }
+ }
}
- function last_error() {
- return $this->adapter->last_error();
+ public static function get() {
+ if (self::$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_connect();
+ }
+
+ return self::$instance->pdo;
+ }
+}
\ No newline at end of file