/**
* Get the Mongo database connection object. Uses your
* settings from `conf/config.php` for the connection
* info (`host`, `name`, `user`, `pass`, and `set_name`).
* The host and database name are required, but authentication
* (`user` and `pass`) settings and replica set name
* (`set_name`) are optional.
*/
public static function get_connection()
{
$conf = conf('Mongo');
if (!self::$conn) {
if (isset($conf['user'])) {
$connstr = 'mongodb://' . $conf['user'] . ':' . $conf['pass'] . '@' . $conf['host'];
} else {
$connstr = $conf['host'];
}
try {
if (isset($conf['set_name'])) {
self::$conn = new Mongo($connstr, array('replicaSet' => $conf['set_name']));
} else {
self::$conn = new Mongo($connstr);
}
} catch (Exception $e) {
self::$error = $e->getMessage();
}
}
return self::$conn;
}
