geoNear MongoDB + Monga

gistfile1.php

public function getByLatLng($lat, $lng, $range = 5000 /* KM */, $earthRadius = 6378 /* Unit Earth Radius */) {
    \Config::load('db');
	$mongoConf = \Config::get('mongo');

	$monga = \Monga::connection('mongodb://' . $mongoConf['default']['hostname'] . ':27017');
	$database = $monga->database($mongoConf['default']['database']);

	$nameCache = 'company_get_by_' . $lat . '_' . $lng;

	try {
	    return \Fuel\Core\Cache::get($nameCache);
	} catch (\CacheNotFoundException $e) {
	    $get = $database->command(array(
		'geoNear' => $this->collection,
		'near' => array((float) $lat, (float) $lng),
		'nearSphere' => true,
		'maxDistance' => $range / $earthRadius
		)
	    );
	    \Fuel\Core\Cache::set($nameCache, $get);

	    return \Fuel\Core\Cache::get($nameCache);
	}
    }