public function load(ObjectManager $objectManager)
    {
        /**
         * @var ObjectDirector $zoneDirector
         */
        $zoneDirector = $this->getDirector('zone');

        $zone08021 = $zoneDirector
            ->create()
            ->setName('Postalcode 08021')
            ->setCode('zone-08021')
            ->addLocation($this->getReference('location-sant-celoni'))
            ->addLocation($this->getReference('location-08021'));

        $this->setReference('zone-08021', $zone08021);
        $zoneDirector->save($zone08021);

        $zoneViladecavalls = $zoneDirector
            ->create()
            ->setName('Viladecavalls i alrededores')
            ->setCode('zone-viladecavalls')
            ->addLocation($this->getReference('location-viladecavalls'));

        $this->setReference('zone-viladecavalls', $zoneViladecavalls);
        $zoneDirector->save($zoneViladecavalls);
    }