class.ilLMObjectFactory.php

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<?php
 
class ilLMObjectFactory
{
    public static function getInstance(
        ilObjLearningModule $a_content_obj,
        int $a_id = 0,
        bool $a_halt = true
    ): ?ilLMObject {
        global $DIC;
 
        $ilDB = $DIC->database();
 
        $query = "SELECT * FROM lm_data WHERE obj_id = " .
            $ilDB->quote($a_id, "integer");
        $obj_set = $ilDB->query($query);
        $obj_rec = $ilDB->fetchAssoc($obj_set);
 
        $obj = null;
        if ($obj_rec) {
            switch ($obj_rec["type"]) {
                case "st":
                    $obj = new ilStructureObject($a_content_obj);
                    $obj->setId($obj_rec["obj_id"]);
                    $obj->setDataRecord($obj_rec);
                    $obj->read();
                    break;
 
                case "pg":
                    $obj = new ilLMPageObject($a_content_obj, 0, $a_halt);
                    $obj->setId($obj_rec["obj_id"]);
                    $obj->setDataRecord($obj_rec);
                    $obj->read();
                    break;
            }
        }
        return $obj;
    }
}