Tree object must have tree metadata at this point

[juriansluiman]

I have a similar issue as issue #117, where I get an exception "Tree object class Class\Name must have tree metadata at this point". As far as I know, I register the namespace correctly:

use Doctrine\Common\Annotation\AnnotationRegistry;

AnnotationRegistry::registerAutloadNamespaces(array('Gedmo' => '/path/to/Gedmo/lib'));

I set up the listener:

use Doctrine\Common\EventManager,
    Gedmo\Tree\TreeListener;

$evm  = new EventManager;
$tree = new TreeListener;
$evm->addEventSubscriber($tree);

The eventmanager is passed to the connection, the connection to the entity manager.

My entity:

namespace My\Foo\Model;

use Gedmo\Mapping\Annotation as Gedmo,
    Doctrine\ORM\Mapping as ORM;

/**
 * @Gedmo\Tree(type="nested")
 * @ORM\Table(name="pages")
 * @ORM\Entity(repositoryClass="Gedmo\Tree\Entity\Repository\NestedTreeRepository")
 */
class Page
{
    /**
     * @ORM\Id 
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue
     */
    protected $id;

    /**
     * @Gedmo\TreeLeft
     * @ORM\Column(name="lft", type="integer")
     */
    protected $lft;

    /**
     * @Gedmo\TreeLevel
     * @ORM\Column(name="lvl", type="integer")
     */
    protected $lvl;

    /**
     * @Gedmo\TreeRight
     * @ORM\Column(name="rgt", type="integer")
     */
    protected $rgt;

    /**
     * @Gedmo\TreeRoot
     * @ORM\Column(name="root", type="integer", nullable=true)
     */
    protected $root;

    /**
     * @Gedmo\TreeParent
     * @ORM\ManyToOne(targetEntity="My\Foo\Model\Page", inversedBy="children")
     * @ORM\JoinColumn(name="parent_id", referencedColumnName="id", onDelete="SET NULL")
     */
    protected $parent;

    /**
     * @ORM\OneToMany(targetEntity="My\Foo\Model\Page", mappedBy="parent")
     * @ORM\OrderBy({"lft" = "ASC"})
     */
    protected $children;
}

What I do to trigger the exception:

// $em instanceof EntityManager
$pages = $em->getRepository('My\Foo\Model\Page')->getRootNodes();

What's wrong and how can I fix this?

[l3pp4rd]

hey, do you use the current version of master branch for extensions? there was an issue some time ago. also annotation namespace should be more specific Doctrine\Common\Annotations\AnnotationRegistry::registerAutoloadNamespace('Gedmo\\Mapping\\Annotation', 'path/to/gedmo/lib'); note me, if you still have problems

[l3pp4rd]

for instance my silex service config looks like:

<?php
    // load proxy configuration settings
    $config = new Doctrine\ORM\Configuration;
    $config->setProxyDir(__DIR__.'/../tmp');
    $config->setProxyNamespace('Proxy');
    $config->setAutoGenerateProxyClasses(false);
    // load metadata drivers
    $annotationReader = new Doctrine\Common\Annotations\AnnotationReader;
    $refl = new \ReflectionClass('Gedmo\Version');
    $libDir = dirname($refl->getFileName()).'/../../lib';
    Doctrine\Common\Annotations\AnnotationRegistry::registerAutoloadNamespace(
        'Gedmo\\Mapping\\Annotation',
        $libDir
    );
    $driverChain = new Doctrine\ORM\Mapping\Driver\DriverChain();
    $annotationDriver = new Doctrine\ORM\Mapping\Driver\AnnotationDriver($annotationReader, array(
        __DIR__.'/../lib/Gedi/Entity',
        $libDir.'/Gedmo/Translatable/Entity',
        $libDir.'/Gedmo/Loggable/Entity',
        $libDir.'/Gedmo/Tree/Entity',
    ));
    // drivers
    $driverChain->addDriver($annotationDriver, 'Gedi\\Entity');
    $driverChain->addDriver($annotationDriver, 'Gedmo\\Translatable\\Entity');
    $driverChain->addDriver($annotationDriver, 'Gedmo\\Loggable\\Entity');
    $driverChain->addDriver($annotationDriver, 'Gedmo\\Tree\\Entity');
    $config->setMetadataDriverImpl($driverChain);
    // cache
    $config->setMetadataCacheImpl(new Doctrine\Common\Cache\ArrayCache);
    $config->setQueryCacheImpl(new Doctrine\Common\Cache\ArrayCache);
    // event manager
    $app['sluggable'] = new Gedmo\Sluggable\SluggableListener;
    $app['db.evm']->addEventSubscriber($app['sluggable']);
    $app['db.evm']->addEventSubscriber(new Gedmo\Tree\TreeListener);
    $app['db.evm']->addEventSubscriber(new Gedmo\Loggable\LoggableListener);
    $app['db.evm']->addEventSubscriber(new Gedmo\Timestampable\TimestampableListener);
    $translatable = new Gedmo\Translatable\TranslationListener;
    $translatable->setTranslatableLocale('en');
    $app['db.evm']->addEventSubscriber($translatable);
    // create entity manager
    return Doctrine\ORM\EntityManager::create($app['db'], $config);

[l3pp4rd]

this might happen if you have doctrine common 2.2 version, I would recommend to use 2.1 still

[juriansluiman]

@l3pp4rd Thanks for all the updates. I think I missed the Gedmo\Tree\Entity annotation driver in the driver chain. Also I use a Zend Framework 2 module which ships with Doctrine 2.2 by default. I will have a look to fix both issues and get back with my results :)

[juriansluiman]

I think the issue is fixed to return to the Doctrine 2.1.2 version. I will notify the maintainer of the zf2 module to include the 2.1.2 version with his module. Thanks!

[l3pp4rd]

I currently trying to adapt the mapping to doctrine common 2.2, but ODM is also late for changes and does not work with latest components