vendor/doctrine/doctrine-bundle/Command/DropDatabaseDoctrineCommand.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;

use Doctrine\DBAL\DriverManager;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * Database tool allows you to easily drop and create your configured databases.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Jonathan H. Wage <jonwage@gmail.com>
 */
class DropDatabaseDoctrineCommand extends DoctrineCommand
{
    const RETURN_CODE_NOT_DROP = 1;

    const RETURN_CODE_NO_FORCE = 2;

    /**
     * {@inheritDoc}
     */
    protected function configure()
    {
        $this
            ->setName('doctrine:database:drop')
            ->setDescription('Drops the configured database')
            ->addOption('connection', null, InputOption::VALUE_OPTIONAL, 'The connection to use for this command')
            ->addOption('shard', null, InputOption::VALUE_REQUIRED, 'The shard connection to use for this command')
            ->addOption('if-exists', null, InputOption::VALUE_NONE, 'Don\'t trigger an error, when the database doesn\'t exist')
            ->addOption('force', null, InputOption::VALUE_NONE, 'Set this parameter to execute this action')
            ->setHelp(<<<EOT
The <info>%command.name%</info> command drops the default connections database:

    <info>php %command.full_name%</info>

The <info>--force</info> parameter has to be used to actually drop the database.

You can also optionally specify the name of a connection to drop the database for:

    <info>php %command.full_name% --connection=default</info>

<error>Be careful: All data in a given database will be lost when executing this command.</error>
EOT
        );
    }