ezsystems / ezpublish-kernel

    {

        do {

            $contentIds = [];

            for ($i = 0; $i < $iterationCount; ++$i) {

                if ($contentId = $stmt->fetch(PDO::FETCH_COLUMN)) {

                    $contentIds[] = $contentId;

                } else {

                    break;

                }

            }

            yield $contentIds;

        } while (!empty($contentId));

        $i = 0;

        do {

            $contentIds = [];

            for ($k = 0; $k <= $iterationCount; ++$k) {

                if (!$row = $stmt->fetch(PDO::FETCH_ASSOC)) {

                    break;

                }

                $contentIds[] = $row['id'];

            }

            $this->updateSearchIndex($contentIds, $commit);