WorkspaceTitleViewHelper.php

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<?php
namespace TYPO3\CMS\Belog\ViewHelpers;

class WorkspaceTitleViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {

    protected $workspaceRepository = NULL;

    static protected $workspaceTitleRuntimeCache = array();

    public function render($uid) {
        if (isset(static::$workspaceTitleRuntimeCache[$uid])) {
            return htmlspecialchars(static::$workspaceTitleRuntimeCache[$uid]);
        }

        if ($uid === 0) {
            static::$workspaceTitleRuntimeCache[$uid] = \TYPO3\CMS\Extbase\Utility\LocalizationUtility::translate('live', $this->controllerContext->getRequest()->getControllerExtensionName());
        } elseif (!\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('workspaces')) {
            static::$workspaceTitleRuntimeCache[$uid] = '';
        } else {
            $workspace = $this->workspaceRepository->findByUid($uid);
            // $workspace may be null, force empty string in this case
            static::$workspaceTitleRuntimeCache[$uid] = ($workspace === NULL) ? '' : $workspace->getTitle();
        }

        return htmlspecialchars(static::$workspaceTitleRuntimeCache[$uid]);
    }

}