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ChangeLogBatchWalker.php
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ChangeLogBatchWalker.php
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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Mview\View;
use Magento\Framework\App\ResourceConnection;
use Magento\Framework\Phrase;
/**
* Interface \Magento\Framework\Mview\View\ChangeLogBatchWalkerInterface
*
*/
class ChangeLogBatchWalker implements ChangeLogBatchWalkerInterface
{
/**
* @var ResourceConnection
*/
private $resourceConnection;
/**
* @param ResourceConnection $resourceConnection
*/
public function __construct(
ResourceConnection $resourceConnection
) {
$this->resourceConnection = $resourceConnection;
}
/**
* @inheritdoc
*/
public function walk(ChangelogInterface $changelog, int $fromVersionId, int $toVersion, int $batchSize)
{
$connection = $this->resourceConnection->getConnection();
$changelogTableName = $this->resourceConnection->getTableName($changelog->getName());
if (!$connection->isTableExists($changelogTableName)) {
throw new ChangelogTableNotExistsException(new Phrase("Table %1 does not exist", [$changelogTableName]));
}
$select = $connection->select()->distinct(true)
->where(
'version_id > ?',
$fromVersionId
)
->where(
'version_id <= ?',
$toVersion
)
->group([$changelog->getColumnName()])
->limit($batchSize);
$select->from($changelogTableName, [$changelog->getColumnName()]);
return $connection->fetchCol($select);
}
}