/**
* Find page's ancestors (templates and parents) and flatted all their roles.
*
* @param View $view
*
* @return array
*/
private function getPageRoles(View $view)
{
$insertAncestorRole = function (View $view = null) use(&$insertAncestorRole) {
if ($view === null) {
return;
}
$roles = $view->getRoles();
if ($templateRoles = $insertAncestorRole($view->getTemplate(), $roles)) {
$roles .= ($roles ? ',' : '') . $templateRoles;
}
if ($parentRoles = $insertAncestorRole($view->getParent(), $roles)) {
$roles .= ($roles ? ',' : '') . $parentRoles;
}
return $roles;
};
$roles = $insertAncestorRole($view);
if ($roles) {
return array_unique(explode(',', $roles));
}
}
