vendor/doctrine/doctrine-bundle/Command/Proxy/DelegateCommand.php

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<?php

/*
 * This file is part of the Doctrine Bundle
 *
 * The code was originally distributed inside the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 * (c) Doctrine Project, Benjamin Eberlei <kontakt@beberlei.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * Command Delegate.
 *
 * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
 */
abstract class DelegateCommand extends Command
{
    /**
     * @var \Symfony\Component\Console\Command\Command
     */
    protected $command;

    /**
     * @return \Symfony\Component\Console\Command\Command
     */
    abstract protected function createCommand();

    /**
     * @return string
     */
    protected function getMinimalVersion()
    {
        return '2.3.0-DEV';
    }

    /**
     * @return boolean
     */
    private function isVersionCompatible()
    {
        return (version_compare(\Doctrine\ORM\Version::VERSION, $this->getMinimalVersion()) >= 0);
    }

    /**
     * {@inheritDoc}
     */
    public function isEnabled()
    {
        return $this->isVersionCompatible();