How to build an Aggregation query in symfony with doctrine/mongodb? - php

Question

I'm starting out with Symfony and doctrine/mongodb. I'm trying to do an aggregation query, but I get
Attempted to call an undefined method named "createAggregationBuilder" of class "Doctrine\ODM\MongoDB\DocumentManager"
with something like this:
<?php
namespace AppBundle\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
class TestController extends Controller
{
/**
* #Route("/test", name="test")
*/
public function testAction(Request $request) {
$builder = $this->get('doctrine_mongodb')
->getManager()
->createAggregationQuery('AppBundle:Test');
var_dump($builder);
}
}
I'm quite frustrated now, since every documentation or stackoverflow questions and answers start with
$dm->createAggregationQuery();
and I can't find out what $dm stands for in this case.
I'd really appreciate some help here.
UPDATE
I was looking around in the doctrine/mongodb-odm source code and I found that my version is missing the createAggregationBuilder function from both the DocumentRepository.php and the DocumentManager.php file (both located in /vendor/doctrine/mongodb-odm/lib/Doctrine/MongoDB folder.
How can this be?
I mean composer says that I have version 1.1.6, which is the latest release and on the git repo I can cleary see these methods (DocumentRepository.php, DocumentManager.php)

Answer 1

Silly me. The problem was that I was using the 1.1.6 version of doctrine/mongodb-odm and the Aggregation Builder will only be available in version 1.2. Until than (for anyone being as blind as me), just use the "dev-master" version.
In your composer.json modify the doctrine/mongodb-odm line to this:
"require": {
"doctrine/mongodb-odm": "dev-master"
}
And then run composer update doctrine/mongodb-odm.