class.IndAssStorageMigration.php

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<?php

declare(strict_types=1);

use ILIAS\Setup;
use ILIAS\Setup\Environment;
use ILIAS\Setup\CLI\IOWrapper;

class IndAssStorageMigration implements Setup\Migration
{
    private const DEFAULT_AMOUNT_OF_STEPS = 200;
    private ilDBInterface $db;
    private ILIAS\DI\Container $dic;
    private ?\ilResourceStorageMigrationHelper $helper = null;

    private mixed $io;

    public function getLabel(): string
    {
        return "Migrate FSStorage to IRSS";
    }

    public function getDefaultAmountOfStepsPerRun(): int
    {
        return self::DEFAULT_AMOUNT_OF_STEPS;
    }

    public function getPreconditions(Environment $environment): array
    {
        return array_merge(
            \ilResourceStorageMigrationHelper::getPreconditions(),
            [
                new \ilSettingsFactoryExistsObjective()
            ]
        );
    }

    public function prepare(Environment $environment): void
    {
        $this->db = $environment->getResource(Setup\Environment::RESOURCE_DATABASE);
        $settings_factory = $environment->getResource(Setup\Environment::RESOURCE_SETTINGS_FACTORY);
        $client_ini = $environment->getResource(Setup\Environment::RESOURCE_CLIENT_INI);

        $DIC = $GLOBALS["DIC"];
        $GLOBALS["DIC"] = new ILIAS\DI\Container();
        $GLOBALS["DIC"]["ilDB"] = $this->db;
        $GLOBALS["DIC"]["ilSetting"] = $settings_factory->settingsFor();
        $GLOBALS["DIC"]["ilClientIniFile"] = $client_ini;

        ILIAS\FileDelivery\Init::init($GLOBALS["DIC"]);
        ilInitialisation::bootstrapFilesystems();

        $this->dic = $GLOBALS["DIC"];
        $GLOBALS["DIC"] = $DIC;

        $stakeholder = new ilIndividualAssessmentGradingStakeholder();
        $this->helper = new \ilResourceStorageMigrationHelper(
            $stakeholder,
            $environment
        );
    }

    public function step(Environment $environment): void
    {
        $GLOBALS["DIC"] = $this->dic;

        $query = "SELECT obj_id, usr_id, file_name FROM iass_members WHERE file_name LIKE '%.%' LIMIT 1;";
        $result = $this->db->query($query);
        $row = $this->db->fetchAssoc($result);

        $obj_id = (int) $row['obj_id'];
        $usr_id = (int) $row['usr_id'];
        $fs_storage = ilIndividualAssessmentFileStorage::getInstance($obj_id);
        $fs_storage->setUserId($usr_id);

        $filename = $row['file_name'];
        $filename_cb = static fn(string $fn) => $filename;
        $filepath = $fs_storage->getAbsolutePath() . '/' . $filename;

        if (! file_exists($filepath)) {
            $dir = scandir($fs_storage->getAbsolutePath());
            if ($dir === false) {
                throw new \Exception('cannot scan directory:' . $fs_storage->getAbsolutePath());
            }
            $files = array_diff($dir, ['.', '..']);
            $filepath = $fs_storage->getAbsolutePath() . '/' . current($files);
            if (file_exists($filepath) === false || count($files) < 1) {
                throw new \Exception('no file in:' . $filepath);
            }
        }

        $resource_id = $this->helper->movePathToStorage($filepath, 6, $filename_cb);
        if (! $resource_id) {
            throw new \Exception('not stored:' . $filepath);
        }

        $identifier = $resource_id->serialize();
        $query = "UPDATE iass_members SET file_name = '$identifier' WHERE obj_id = $obj_id AND usr_id = $usr_id";
        $this->db->manipulate($query);
    }

    public function getRemainingAmountOfSteps(): int
    {
        $query = "SELECT COUNT(*) AS amount FROM iass_members WHERE file_name LIKE '%.%';";
        $result = $this->db->query($query);
        $row = $this->db->fetchAssoc($result);
        return (int) $row['amount'];
    }
}