/**
* The slot for the signal in DatabaseTreeDataProvider.
*
* @param DatabaseTreeDataProvider $dataProvider
* @param TreeNode $treeData
* @return void
*/
public function addUserPermissionsToCategoryTreeData(DatabaseTreeDataProvider $dataProvider, $treeData)
{
if (!$this->backendUserAuthentication->isAdmin() && $dataProvider->getTableName() === $this->categoryTableName) {
// Get User permissions related to category
$categoryMountPoints = $this->backendUserAuthentication->getCategoryMountPoints();
// Backup child nodes to be processed.
$treeNodeCollection = $treeData->getChildNodes();
if (!empty($categoryMountPoints) && !empty($treeNodeCollection)) {
// First, remove all child nodes which must be analysed to be considered as "secure".
// The nodes were backed up in variable $treeNodeCollection beforehand.
$treeData->removeChildNodes();
// Create an empty tree node collection to receive the secured nodes.
/** @var TreeNodeCollection $securedTreeNodeCollection */
$securedTreeNodeCollection = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Backend\\Tree\\TreeNodeCollection');
foreach ($categoryMountPoints as $categoryMountPoint) {
$treeNode = $this->lookUpCategoryMountPointInTreeNodes((int) $categoryMountPoint, $treeNodeCollection);
if (!is_null($treeNode)) {
$securedTreeNodeCollection->append($treeNode);
}
}
// Reset child nodes.
$treeData->setChildNodes($securedTreeNodeCollection);
}
}
}
