class.ilObjCourseReferenceListGUI.php

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<?php

class ilObjCourseReferenceListGUI extends ilObjCourseListGUI
{
    protected ?int $reference_obj_id = null;
    protected int $reference_ref_id;
    protected bool $deleted = false;

    public function __construct()
    {
        parent::__construct();
    }

    public function getIconImageType(): string
    {
        return 'crsr';
    }

    public function getTypeIcon(): string
    {
        $reference_obj_id = ilObject::_lookupObjId($this->getCommandId());
        return ilObject::_getIcon(
            $reference_obj_id,
            'small'
        );
    }


    public function getCommandId(): int
    {
        return $this->reference_ref_id;
    }

    public function insertTimingsCommand(): void
    {
        return;
    }

    public function init(): void
    {
        $this->copy_enabled = true;
        $this->static_link_enabled = false;
        $this->delete_enabled = true;
        $this->cut_enabled = true;
        $this->subscribe_enabled = true;
        $this->link_enabled = false;
        $this->info_screen_enabled = true;
        $this->type = 'crsr';
        $this->gui_class_name = "ilobjcoursegui";

        $this->substitutions = ilAdvancedMDSubstitution::_getInstanceByObjectType($this->type);
        if ($this->substitutions->isActive()) {
            $this->substitutions_enabled = true;
        }
    }



    public function initItem(
        int $ref_id,
        int $obj_id,
        string $type,
        string $title = "",
        string $description = ""
    ): void {
        global $DIC;

        $ilAccess = $DIC->access();
        $tree = $DIC->repositoryTree();

        $this->reference_ref_id = $ref_id;
        $this->reference_obj_id = $obj_id;


        $target_obj_id = ilContainerReference::_lookupTargetId($obj_id);

        $target_ref_ids = ilObject::_getAllReferences($target_obj_id);
        $target_ref_id = current($target_ref_ids);
        $target_title = ilContainerReference::_lookupTitle($obj_id);
        $target_description = ilObject::_lookupDescription($target_obj_id);

        $this->deleted = !$target_ref_id || $tree->isDeleted($target_ref_id);

        parent::initItem((int) $target_ref_id, $target_obj_id, $type, $target_title, $target_description);

        // general commands array
        $this->commands = ilObjCourseReferenceAccess::_getCommands($this->reference_ref_id);

        if ($ilAccess->checkAccess('write', '', $this->reference_ref_id) or $this->deleted) {
            $this->info_screen_enabled = false;
        } else {
            $this->info_screen_enabled = true;
        }
    }

    public function getProperties(): array
    {
        global $lng,$ilUser,$tree;

        $props = parent::getProperties();

        // offline
        if ($this->deleted) {
            $props[] = array("alert" => true, "property" => $lng->txt("status"),
                "value" => $lng->txt("reference_deleted"));
        }

        return $props ? $props : array();
    }

    public function checkCommandAccess(
        string $permission,
        string $cmd,
        int $ref_id,
        string $type,
        ?int $obj_id = null
    ): bool {
        // Check edit reference against reference edit permission
        switch ($cmd) {
            case 'editReference':
                return parent::checkCommandAccess($permission, $cmd, $this->getCommandId(), $type, $obj_id);
        }

        switch ($permission) {
            case 'copy':
            case 'delete':
                // check against target ref_id
                return parent::checkCommandAccess($permission, $cmd, $this->getCommandId(), $type, $obj_id);

            default:
                // check against reference
                return parent::checkCommandAccess($permission, $cmd, $ref_id, $type, $obj_id);
        }
    }

    public function getCommandLink(string $cmd): string
    {
        global $ilCtrl;

        switch ($cmd) {
            case 'editReference':
                $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->getCommandId());
                $cmd_link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", $cmd);
                $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"] ?? null);
                return $cmd_link;

            default:
                $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->ref_id);
                $cmd_link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", $cmd);
                $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"] ?? null);
                return $cmd_link;
        }
    }
}