Portal.php

<?php

public function getRepository($name)
{
    $em = $this->getEntityManager();

    $entity = $this->getExtendedEntity($name);
    if (is_null($entity)) {
        $entity = $this->getDefaultEntity($name);
    }

    if (is_null($entity)) {
        throw new \RuntimeException(sprintf("The class %s was not found", $entity));
    }

    return $this->doctrine->getRepository($entity, $em);
}