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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/

namespace Doctrine\Common\DataFixtures\Executor;

use Doctrine\ORM\EntityManager;
use Doctrine\Common\DataFixtures\Purger\ORMPurger;
use Doctrine\Common\DataFixtures\Event\Listener\ORMReferenceListener;
use Doctrine\Common\DataFixtures\ReferenceRepository;

/**
* Class responsible for executing data fixtures.
*
* @author Jonathan H. Wage <jonwage@gmail.com>
*/
class ORMExecutor extends AbstractExecutor
{
    /**
* Construct new fixtures loader instance.
*
* @param EntityManager $em EntityManager instance used for persistence.
*/
    public function __construct(EntityManager $em, ORMPurger $purger = null)
    {
        $this->em = $em;
        if ($purger !== null) {
            $this->purger = $purger;
            $this->purger->setEntityManager($em);
        }
        parent::__construct($em);
        $this->listener = new ORMReferenceListener($this->referenceRepository);
        $em->getEventManager()->addEventSubscriber($this->listener);
    }

    /** @inheritDoc */
    public function setReferenceRepository(ReferenceRepository $referenceRepository)
    {
        $this->em->getEventManager()->removeEventListener(
            $this->listener->getSubscribedEvents(),
            $this->listener
        );

        $this->referenceRepository = $referenceRepository;
        $this->listener = new ORMReferenceListener($this->referenceRepository);
        $this->em->getEventManager()->addEventSubscriber($this->listener);
    }

    /** @inheritDoc */
    public function execute(array $fixtures, $append = false)
    {
        $executor = $this;
        $this->em->transactional(function(EntityManager $em) use ($executor, $fixtures, $append) {
            if ($append === false) {
                $executor->purge();
            }
            foreach ($fixtures as $fixture) {
                $executor->load($em, $fixture);
            }
        });
    }
}
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