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trunk/proactiveenglish/lib/symfony/database/sfPDODatabase.class.php

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+<?php
+
+/*
+ * This file is part of the symfony package.
+ * (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
+ * (c) 2004-2006 Sean Kerr <sean@code-box.org>
+ * 
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * sfPDODatabase provides connectivity for the PDO database abstraction layer.
+ *
+ * @package    symfony
+ * @subpackage database
+ * @author     Daniel Swarbrick (daniel@pressure.net.nz)
+ * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
+ * @author     Sean Kerr <sean@code-box.org>
+ * @version    SVN: $Id: sfPDODatabase.class.php 7791 2008-03-09 21:57:09Z fabien $
+ */
+class sfPDODatabase extends sfDatabase
+{
+  /**
+   * Connects to the database.
+   *
+   * @throws <b>sfDatabaseException</b> If a connection could not be created
+   */
+  public function connect()
+  {
+    // determine how to get our parameters
+    $method = $this->getParameter('method', 'dsn');
+
+    // get parameters
+    switch ($method)
+    {
+      case 'dsn':
+        $dsn = $this->getParameter('dsn');
+
+        if ($dsn == null)
+        {
+          // missing required dsn parameter
+          $error = 'Database configuration specifies method "dsn", but is missing dsn parameter';
+
+          throw new sfDatabaseException($error);
+        }
+
+        break;
+    }
+
+    try
+    {
+      $pdo_username = $this->getParameter('username');
+      $pdo_password = $this->getParameter('password');
+
+      $this->connection = new PDO($dsn, $pdo_username, $pdo_password);
+    }
+    catch (PDOException $e)
+    {
+      throw new sfDatabaseException($e->getMessage());
+    }
+
+    // lets generate exceptions instead of silent failures
+    if (defined('PDO::ATTR_ERRMODE'))
+    {
+      $this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+    }
+    else
+    {
+      $this->connection->setAttribute(PDO_ATTR_ERRMODE, PDO_ERRMODE_EXCEPTION);
+    }
+  }
+
+  /**
+   * Executes the shutdown procedure.
+   *
+   * @return void
+   *
+   * @throws <b>sfDatabaseException</b> If an error occurs while shutting down this database
+   */
+  public function shutdown()
+  {
+    if ($this->connection !== null)
+    {
+      $this->connection = null;
+    }
+  }
+}