class.UserImageExporter.php

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<?php

namespace ILIAS\Notes\Export;

class UserImageExporter
{
    protected \ilDBInterface $db;

    public function __construct()
    {
        global $DIC;

        $this->db = $DIC->database();
    }

    public function exportUserImagesForRepObjId(
        string $export_dir,
        int $rep_obj_id
    ): void {
        $db = $this->db;
        $set = $db->queryF(
            "SELECT DISTINCT author FROM note " .
            " WHERE rep_obj_id = %s " .
            " AND type = %s ",
            ["integer", "integer"],
            [$rep_obj_id, 2]
        );
        $user_ids = [];
        while ($rec = $db->fetchAssoc($set)) {
            $user_ids[] = (int) $rec["author"];
        }
        $this->exportUserImages($export_dir, $user_ids);
    }

    public function exportUserImages(string $export_dir, array $user_ids): void
    {
        $user_export = new \ILIAS\User\Export\UserHtmlExport();
        $user_export->exportUserImages($export_dir, $user_ids);
    }
}