/**
* Create a new database connection instance.
*
* @param array $config
*/
public function __construct(array $config)
{
$this->config = $config;
// Build the connection string
$dsn = $this->getDsn($config);
// You can pass options directly to the MongoClient constructor
$options = array_get($config, 'options', []);
// Create the connection
$this->connection = $this->createConnection($dsn, $config, $options);
// Select database
$this->db = $this->connection->selectDatabase($config['database']);
$this->useDefaultPostProcessor();
}