symfony - Can't manage to work doctrine-translatable-bundle with symfony2 -

i read documentation , examples @ github, can't figure how make doctrine-translatable-bundle + a2lix translation form work project.

this autoload.php

<?php  use doctrine\common\annotations\annotationregistry; use composer\autoload\classloader;  /**  * @var classloader $loader  */ $loader = require __dir__.'/../vendor/autoload.php'; $loader->add('prezent\\doctrine\\translatable', __dir__ . '/../lib');  annotationregistry::registerloader(array($loader, 'loadclass')); annotationregistry::registerautoloadnamespace('prezent\\doctrine\\translatable\\annotation', __dir__ . '/../lib');  return $loader; 

my article.php entity

<?php  namespace appbundle\entity;  use doctrine\common\collections\arraycollection; use doctrine\orm\mapping orm; use prezent\doctrine\translatable\annotation prezent; use prezent\doctrine\translatable\entity\abstracttranslatable;  /**  * @orm\entity  * @orm\table(name="articles")  */ class article extends abstracttranslatable {     /**      * @orm\id      * @orm\generatedvalue(strategy="auto")      * @orm\column(type="integer")      */     protected $id;      /**      * @prezent\translations(targetentity="appbundle\entity\articletranslation")      */     protected $translations;      /**      * @prezent\currentlocale      */     private $currentlocale;       public function __construct()     {         $this->translations = new arraycollection();     }      function getid() {         return $this->id;     }      function gettranslations() {         return $this->translations;     }      function getcurrentlocale() {         return $this->currentlocale;     }      function setid($id) {         $this->id = $id;     }      function settranslations($translations) {         $this->translations = $translations;     }      function setcurrentlocale($currentlocale) {         $this->currentlocale = $currentlocale;     }   } 

my articletranslation.php entity

<?php  namespace appbundle\entity;  use doctrine\orm\mapping orm; use prezent\doctrine\translatable\annotation prezent; use prezent\doctrine\translatable\entity\abstracttranslation;  /**  * @orm\entity  * @orm\table(name="articles_translation")  */ class articletranslation extends abstracttranslation {      /**      * @prezent\translatable(targetentity="appbundle\entity\article")      */     protected $translatable;      /**      * @orm\column(type="string")      */     private $title = "";      /**      * @orm\column(type="text")      */     private $content = "";      private $currenttranslation;      public function translate($locale = null) {         if (null === $locale) {             $locale = $this->currentlocale;         }          if (!$locale) {             throw new \runtimeexception('no locale has been set , currentlocale empty');         }          if ($this->currenttranslation && $this->currenttranslation->getlocale() === $locale) {             return $this->currenttranslation;         }          if (!$translation = $this->translations->get($locale)) {             $translation = new articletranslation();             $translation->setlocale($locale);             $this->addtranslation($translation);         }          $this->currenttranslation = $translation;         return $translation;     }      public function gettitle() {         return $this->translate()->gettitle();     }      public function settitle($title) {         $this->translate()->settitle($title);         return $this;     }      public function getcontent() {         return $this->translate()->getcontent();     }      public function setcontent($content) {         $this->translate()->setcontent($content);         return $this;     }  } 

and articlescontroller.php

<?php  namespace appbundle\controller;  use sensio\bundle\frameworkextrabundle\configuration\route; use symfony\bundle\frameworkbundle\controller\controller; use symfony\component\httpfoundation\request; use appbundle\entity\article; use metadata\metadatafactory; use prezent\doctrine\translatable\mapping\driver\doctrineadapter; use prezent\doctrine\translatable\eventlistener\translatablelistener;  class articlescontroller extends controller {      /**      * @route("/admin/articles/new", name="articles_new")      */     public function newaction(request $request) {         if (!$this->get('security.authorization_checker')->isgranted('is_authenticated_fully')) {             throw $this->createaccessdeniedexception();         }         $em = $this->getdoctrine()->getmanager();         $driver = doctrineadapter::frommanager($em);         $metadatafactory  = new metadatafactory($driver);         $translatablelistener = new translatablelistener($metadatafactory);         $em->geteventmanager()->addeventsubscriber($translatablelistener);         $translatablelistener->setcurrentlocale('en');         $article = new article();         $form = $this->createformbuilder($article)                 ->add('translations', 'a2lix_translations')                 ->add('save', "symfony\component\form\extension\core\type\submittype", array(                     'label' => 'newarticle.save')                 )                 ->getform();         $form->handlerequest($request);          if ($form->issubmitted() && $form->isvalid()) {             $em->persist($article);             $em->flush();             $request->getsession()->getflashbag()->add('notice', 'newarticle.saved');             return $this->redirecttoroute('articles_new');         }         return $this->render('appbundle:adminarticles:new.html.twig', array(                     'form' => $form->createview(),                         )         );     }  } 

part of config.yml

prezent_doctrine_translatable:     fallback_locale: en  a2lix_translation_form:     locale_provider: default     locales: [en, bg, ru]     default_locale: en     required_locales: [en]     manager_registry: doctrine     templating: "a2lixtranslationformbundle::default.html.twig" 

sure, both registered , loaded in appkernel.php

when submit article, got error:

 notice: undefined property: appbundle\entity\articletranslation::$currentlocale 500 internal server error - contexterrorexception  

stack trace

    in src\appbundle\entity\articletranslation.php @ line 34  -             public function translate($locale = null) {                 if (null === $locale) {                     $locale = $this->currentlocale; // here error                 }                 if (!$locale) {  

what i'm missing?

p.s. can't use knplabs/doctrinebehaviors because of php 5.3.29 on server. :-(