title: translation-form with default entity translations not found
body: <p>i try setup translations form </p>
  
  <p><a href="http://a2lix.fr/bundles/translation-form/" rel="nofollow noreferrer">http://a2lix.fr/bundles/translation-form/</a> and <a href="https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#translatable-entity-example" rel="nofollow noreferrer">https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#translatable-entity-example</a> </p>
  
  <p>composer.json </p>
  
  <pre><code>    "a2lix/translation-form-bundle": "2.*@dev",
      "stof/doctrine-extensions-bundle": "1.2.*@dev",
  </code></pre>
  
  <p>config.yml</p>
  
  <p>stof_doctrine_extensions:
      default_locale: en
      orm:
          default:
              translatable: true
              sluggable: true
              sluggable: true
              timestampable: true</p>
  
  <pre><code>a2lix_translation_form:
      locale_provider: default       # [1]
      locales: [pl, en, de]          # [1-a]
      default_locale: en
      manager_registry: doctrine      # [2]
      templating: "A2lixTranslationFormBundle::default.html.twig"
  </code></pre>
  
  <p>entity </p>
  
  <pre><code>use Doctrine\Common\Collections\ArrayCollection;
  use Doctrine\ORM\Mapping as ORM;
  use APY\DataGridBundle\Grid\Mapping as GRID;
  use Gedmo\Mapping\Annotation as Gedmo;
  use Gedmo\Translatable\Translatable;
  use Symfony\Component\Validator\Constraints as Assert;
  
  /**
   * @ORM\Entity
   * @ORM\Table(name="c_Base"
      ,indexes={
   *      @ORM\Index(name="search_name", columns={"name"}),
   *      @ORM\Index(name="orderCity", columns={"city"})
   * })
   */
  class Base  implements Translatable{
  
      /**
       * @ORM\Column(type="bigint")
       * @ORM\Id
       */
      private $id;
  
      /**
       * Hexaid
       * @var string
       */
      private $hid;
  
      /**
       * @ORM\Column(type="string")
       * @GRID\Column(title="name")
       * @Gedmo\Translatable
       * @var string
       */
      private $name;
  
      /**
       * @Gedmo\Locale
       * Used locale to override Translation listener`s locale
       * this is not a mapped field of entity metadata, just a simple property
       */
      private $locale;
  </code></pre>
  
  <p>build form </p>
  
  <p>public function buildForm(FormBuilderInterface $builder, array $options)
      {</p>
  
  <pre><code>    $builder
  
          -&gt;add('translations', 'a2lix_translations', array(
                  'fields'=&gt;array(
                      'name'=&gt;array(),
                      'description'=&gt;array(
                          'field_type' =&gt; 'ckeditor'
                      )
                  )
              )
          );
  </code></pre>
  
  <p>error </p>
  
  <pre><code>Neither the property "translations" nor one of the methods "getTranslations()", "translations()", "isTranslations()", "hasTranslations()", "__get()" exist and have public access in class "Mea\CharterBundle\Entity\Base".
  </code></pre>
  
  <p>i dont't have private $translations; var in base - because is public translation - in example for personal translations exist $translations 
  <a href="https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#personal-translations" rel="nofollow noreferrer">https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#personal-translations</a> </p>
  
  <p>but for <a href="https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#translatable-entity-example" rel="nofollow noreferrer">https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/translatable.md#translatable-entity-example</a> not. </p>
  
  <p>Can i use it in <a href="http://a2lix.fr/bundles/translation-form/" rel="nofollow noreferrer">http://a2lix.fr/bundles/translation-form/</a> ? </p>
  
  <p>here is other way example 
  <a href="https://stackoverflow.com/questions/30263799/doctrineextensions-notice-undefined-index-foreignkey-in-em-getrepositoryge/30264649#30264649">DoctrineExtensions Notice: Undefined index: foreignKey in $em-&gt;getRepository(&#39;Gedmo\\Translatable\\Entity\\Translation&#39;);</a></p>