class.ilObjMDSettingsGUI.php

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<?php

declare(strict_types=1);

class ilObjMDSettingsGUI extends ilObjectGUI
{
    protected ?ilMDSettings $md_settings = null;
    protected ilMDSettingsAccessService $access_service;

    public function __construct(
        $data,
        int $id = 0,
        bool $call_by_reference = true,
        bool $prepare_output = true
    ) {
        parent::__construct($data, $id, $call_by_reference, $prepare_output);

        $this->access_service = new ilMDSettingsAccessService(
            $this->object->getRefId(),
            $this->access
        );

        $this->type = 'mds';
        $this->lng->loadLanguageModule("meta");
    }

    public function executeCommand(): void
    {
        $next_class = $this->ctrl->getNextClass($this);
        $cmd = $this->ctrl->getCmd();

        $this->prepareOutput();

        if (
            !$this->access_service->hasCurrentUserVisibleAccess() ||
            !$this->access_service->hasCurrentUserReadAccess()
        ) {
            throw new ilPermissionException($this->lng->txt('no_permission'));
        }

        switch ($next_class) {
            case strtolower(ilMDCopyrightSelectionGUI::class):
                $gui = new ilMDCopyrightSelectionGUI($this);
                $ret = $this->ctrl->forwardCommand($gui);
                break;

            case strtolower(ilAdvancedMDSettingsGUI::class):
                $this->tabs_gui->setTabActive('md_advanced');
                $adv_md = new ilAdvancedMDSettingsGUI(
                    ilAdvancedMDSettingsGUI::CONTEXT_ADMINISTRATION,
                    $this->ref_id
                );
                $ret = $this->ctrl->forwardCommand($adv_md);
                break;

            case strtolower(ilPermissionGUI::class):
                $this->tabs_gui->setTabActive('perm_settings');

                $perm_gui = new ilPermissionGUI($this);
                $ret = $this->ctrl->forwardCommand($perm_gui);
                break;

            default:
                $this->ctrl->redirectByClass(
                    ilMDCopyrightSelectionGUI::class,
                    'view'
                );
                break;
        }
    }

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

    protected function getParentObjType(): string
    {
        return 'meta';
    }

    public function getAdminTabs(): void
    {
        if (
            $this->access_service->hasCurrentUserVisibleAccess() &&
            $this->access_service->hasCurrentUserReadAccess()
        ) {
            $this->tabs_gui->addTab(
                'md_copyright',
                $this->lng->txt('md_copyright'),
                $this->ctrl->getLinkTargetByClass(
                    ilMDCopyrightSelectionGUI::class,
                    'showCopyrightSettings'
                )
            );

            $this->tabs_gui->addTab(
                'md_advanced',
                $this->lng->txt('md_advanced'),
                $this->ctrl->getLinkTargetByClass(ilAdvancedMDSettingsGUI::class, '')
            );
        }

        if ($this->access_service->hasCurrentUserPermissionsAccess()) {
            $this->tabs_gui->addTab(
                'perm_settings',
                $this->lng->txt('perm_settings'),
                $this->ctrl->getLinkTargetByClass(ilPermissionGUI::class, 'perm')
            );
        }
    }

    protected function MDSettings(): ilMDSettings
    {
        if (!isset($this->md_settings)) {
            $this->md_settings = ilMDSettings::_getInstance();
        }
        return $this->md_settings;
    }
}