Undefined index error upon $em->clear() in Symfony2

Question

I have written a Symfony command to import some data from an API. It works but the problem is my PHP memory usage increases when I insert a big JSON in my database. And my unitO

Answer 1

Try to reset the entity manager with:

$this->getContainer()->get('doctrine')->resetEntityManager();

and then:

$em = $this->getContainer()->get('doctrine')->getEntityManager();