class.ilSCORMObject.php

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<?php

declare(strict_types=1);
class ilSCORMObject
{
    public int $id;
    public string $title = "";
    public ?string $type = null;
    public int $slm_id;

    public function __construct(int $a_id = 0)
    {
        $this->id = $a_id;
        if ($a_id > 0) {
            $this->read();
        }
    }

    public function getId(): int
    {
        return $this->id;
    }

    public function setId(int $a_id): void
    {
        $this->id = $a_id;
    }

    public function getType(): ?string
    {
        return $this->type;
    }

    public function setType(?string $a_type): void
    {
        $this->type = $a_type;
    }

    public function getTitle(): string
    {
        return $this->title;
    }

    public function setTitle(string $a_title): void
    {
        $this->title = $a_title;
    }

    public function getSLMId(): int
    {
        return $this->slm_id;
    }

    public function setSLMId(int $a_slm_id): void
    {
        $this->slm_id = $a_slm_id;
    }

    public function read(): void
    {
        global $DIC;
        $ilDB = $DIC->database();

        $obj_set = $ilDB->queryF(
            'SELECT * FROM scorm_object WHERE obj_id = %s',
            array('integer'),
            array($this->getId())
        );
        $obj_rec = $ilDB->fetchAssoc($obj_set);
        $this->setTitle($obj_rec["title"]);
        $this->setType($obj_rec["c_type"]);
        $this->setSLMId((int) $obj_rec["slm_id"]);
    }

    public static function _lookupPresentableItems(int $a_slm_id): array
    {
        global $DIC;
        $ilDB = $DIC->database();

        $set = $ilDB->queryF(
            "
                        SELECT sit.obj_id id 
                        FROM scorm_object sob, sc_item sit
                        WHERE sob.slm_id = %s
                        AND sob.obj_id = sit.obj_id
                        AND sit.identifierref IS NOT NULL",
            array('integer'),
            array($a_slm_id)
        );
        $items = array();
        while ($rec = $ilDB->fetchAssoc($set)) {
            $items[] = $rec["id"];
        }

        return $items;
    }

    public function create(): void
    {
        global $DIC;
        $ilDB = $DIC->database();

        $nextId = $ilDB->nextId('scorm_object');
        $this->setId($nextId);

        $ilDB->manipulateF(
            '
        INSERT INTO scorm_object (obj_id,title, c_type, slm_id) 
        VALUES (%s,%s,%s,%s) ',
            array('integer','text','text','integer'),
            array($nextId, $this->getTitle(),$this->getType(), $this->getSLMId())
        );
    }

    public function update(): void
    {
        global $DIC;
        $ilDB = $DIC->database();

        $ilDB->manipulateF(
            '
        UPDATE scorm_object 
        SET title = %s,
                c_type = %s,
                slm_id = %s
        WHERE obj_id = %s',
            array('text','text','integer','integer'),
            array($this->getTitle(),$this->getType(), $this->getSLMId(),$this->getId())
        );
    }

    public function delete(): void
    {
        global $DIC;
        $ilDB = $DIC->database();
        $ilDB->manipulateF(
            'DELETE FROM scorm_object WHERE obj_id = %s',
            array('integer'),
            array($this->getId())
        );
    }

    public static function &_getInstance(int $a_id, int $a_slm_id)
    {
        global $DIC;
        $ilDB = $DIC->database();

        $sc_set = $ilDB->queryF(
            '
                        SELECT c_type FROM scorm_object 
                        WHERE obj_id = %s
                        AND slm_id = %s',
            array('integer','integer'),
            array($a_id, $a_slm_id)
        );
        $sc_rec = $ilDB->fetchAssoc($sc_set);

        switch ($sc_rec["c_type"]) {
            case "sit":                                 $item = new ilSCORMItem($a_id);
                return $item;

            case "sos":                                 $sos = new ilSCORMOrganizations($a_id);
                return $sos;

            case "sor":                                 $sor = new ilSCORMOrganization($a_id);
                return $sor;

            case "sma":                                 $sma = new ilSCORMManifest($a_id);
                return $sma;

            case "srs":                                 $srs = new ilSCORMResources($a_id);
                return $srs;

            default:
            case "sre":                                 $sre = new ilSCORMResource($a_id);
                return $sre;
        }
    }
}