PartKeepr\CategoryBundle\DataFixtures\AbstractCategoryDataLoader::load PHP Method

    public function load(ObjectManager $manager)
    {
        $entityClass = $this->getEntityClass();
        $rootNode = new $entityClass();
        $rootNode->setName('Root Node');
        $firstCategory = new $entityClass();
        $firstCategory->setParent($rootNode);
        $firstCategory->setName('First Category');
        $secondCategory = new $entityClass();
        $secondCategory->setParent($firstCategory);
        $secondCategory->setName('Second Category');
        $manager->persist($rootNode);
        $manager->persist($firstCategory);
        $manager->persist($secondCategory);
        $manager->flush();
        $this->addReference($this->getReferencePrefix() . '.root', $rootNode);
        $this->addReference($this->getReferencePrefix() . '.first', $firstCategory);
        $this->addReference($this->getReferencePrefix() . '.second', $secondCategory);
    }