Automated build for v0.01

classes/db.php

@@ -0,0 +1,116 @@
+<?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;
+	}
+}