protected function getDatabaseConfig()
    {
        $config = Zend_Controller_Front::getInstance()->getParam('bootstrap');
        $resources = $config->getOption('resources');
        $dbConfig = [
            'driver'   => $resources['db']['adapter'],
            'hostname' => $resources['db']['params']['host'],
            'database' => $resources['db']['params']['dbname'],
            'username' => $resources['db']['params']['username'],
            'password' => $resources['db']['params']['password'],
            'charset'  => $resources['db']['params']['charset'],
            'dsn'      => sprintf('mysql:host=%s;dbname=%s', $resources['db']['params']['host'], $resources['db']['params']['dbname']),
        ];

        return $dbConfig;
    }