/**
  * Loads database configuration.
  */
 public function loadConfiguration()
 {
     // http://qubit-toolkit.org/wiki/index.php?title=Config
     $config = (include sfConfig::get('sf_config_dir') . '/config.php');
     $config = sfYamlConfigHandler::flattenConfigurationWithEnvironment($config);
     foreach ($config as $name => $database) {
         $this->setDatabase($name, new $database['class']($database['param']));
     }
 }