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<?php
/**
* @copyright Copyright (c) 2018 Joas Schilling <coding@schilljs.com>
*
* @author Joas Schilling <coding@schilljs.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Talk\Migration;
use Doctrine\DBAL\Schema\SchemaException;
use OCP\DB\ISchemaWrapper;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\Migration\SimpleMigrationStep;
use OCP\Migration\IOutput;
class Version7000Date20190724121137 extends SimpleMigrationStep {
/** @var IDBConnection */
protected $connection;
public function __construct(IDBConnection $connection) {
$this->connection = $connection;
}
/**
* @param IOutput $output
* @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
* @param array $options
* @since 13.0.0
*/
public function preSchemaChange(IOutput $output, \Closure $schemaClosure, array $options): void {
$query = $this->connection->getQueryBuilder();
$query->select('p.user_id', 'p.room_id')
->selectAlias($query->createFunction('MAX(' . $query->getColumnName('c.id') . ')'), 'last_mention_message')
->from('talk_participants', 'p')
->leftJoin('p', 'comments', 'c', $query->expr()->andX(
$query->expr()->eq('c.object_id', $query->expr()->castColumn('p.room_id', IQueryBuilder::PARAM_STR)),
$query->expr()->eq('c.object_type', $query->createNamedParameter('chat')),
$query->expr()->eq('c.creation_timestamp', 'p.last_mention')
))
->where($query->expr()->isNotNull('p.user_id'))
->groupBy('p.user_id', 'p.room_id');
$update = $this->connection->getQueryBuilder();
$update->update('talk_participants')
->set('last_mention_message', $update->createParameter('message_id'))
->where($update->expr()->eq('user_id', $update->createParameter('user_id')))
->andWhere($update->expr()->eq('room_id', $update->createParameter('room_id')));
$result = $query->executeQuery();
while ($row = $result->fetch()) {
$update->setParameter('message_id', (int) $row['last_mention_message'], IQueryBuilder::PARAM_INT)
->setParameter('user_id', $row['user_id'])
->setParameter('room_id', (int) $row['room_id'], IQueryBuilder::PARAM_INT);
$update->executeStatement();
}
$result->closeCursor();
}
/**
* @param IOutput $output
* @param \Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
* @param array $options
* @return null|ISchemaWrapper
* @throws SchemaException
* @since 13.0.0
*/
public function changeSchema(IOutput $output, \Closure $schemaClosure, array $options): ?ISchemaWrapper {
/** @var ISchemaWrapper $schema */
$schema = $schemaClosure();
$table = $schema->getTable('talk_participants');
if ($table->hasColumn('last_mention')) {
$table->dropColumn('last_mention');
}
return $schema;
}
}
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