Phalcon MongoDB - php

Question

php7.0, Phalcon 3.2, MongoDB 3.2.14
I want to connect to MongoDB, but in Phalcon documentation only about connection via MongoClient() and working with it. I have php7.0 and MongoClient() is deprecated in it. How I can correctly use \MongoDB\Driver\Manager() with Phalcon?
In services.php I wrote this:
/**
* MongoDB connection
*/
$di->set( "mongo", function () {
$config = $this->getConfig();
$db_string = sprintf( 'mongodb://%s:%s/%s', $config->mongodb->host, $config->mongodb->port, $config->mongodb->database );
if( isset( $config->mongodb->user ) AND isset( $config->mongodb->password ) ) {
$db_string = sprintf( 'mongodb://%s:%s#%s:%s/%s',
$config->mongodb->user,
(string)$config->mongodb->password,
$config->mongodb->host,
(string)$config->mongodb->port,
$config->mongodb->database );
}
try {
return new \MongoDB\Driver\Manager( $db_string );
} catch (MongoConnectionException $e) {
die( 'Failed to connect to MongoDB '.$e->getMessage() );
}
},
true
);
It works. But in models there are errors. In app/models/User.php I wrote:
use Phalcon\Mvc\Collection;
class User extends Collection
{
public function initialize()
{
$this->setSource('users');
}
}
And in controller:
class IndexController extends ControllerBase
{
public function indexAction()
{
echo User::count();
}
}
In browser I have this:
Call to undefined method ::selectcollection()
#0 [internal function]: Phalcon\Mvc\Collection::_getGroupResultset(Array, Object(User), Object(MongoDB\Driver\Manager))
#1 /var/www/testing/app/controllers/IndexController.php(8): Phalcon\Mvc\Collection::count()
#2 [internal function]: IndexController->indexAction()
#3 [internal function]: Phalcon\Dispatcher->callActionMethod(Object(IndexController), 'indexAction', Array)
#4 [internal function]: Phalcon\Dispatcher->_dispatch()
#5 [internal function]: Phalcon\Dispatcher->dispatch()
#6 /var/www/testing/public/index.php(42): Phalcon\Mvc\Application->handle()
#7 {main}
How I can do it correclty? :) sorry for my English, I from Russia :)
My original question is here.

Answer 1

Use Incubator package: https://github.com/phalcon/incubator
See example of using here -
https://github.com/phalcon/incubator/tree/master/Library/Phalcon/Db/Adapter#mongodbclient