/**
* Flattens the given permission tree.
* @param array $permissions the permissions tree.
* @return array the permissions.
*/
public function flattenPermissions($permissions)
{
$flattened = array();
foreach ($permissions as $itemId => $itemPermissions) {
$children = $itemPermissions['children'];
unset($itemPermissions['children']);
// not needed in a flat tree
$flattened[$itemId] = $itemPermissions;
$flattened = TUtil::mergeArrayByOverRide($flattened, $this->flattenPermissions($children));
}
return $flattened;
}
