public function getPageEditingRoles()
{
$roots = new Roots();
$arr = $roots->getPageEditingRoles();
$result = array();
$i = 0;
foreach ($arr as $type) {
$item = new \stdClass();
$item->id = $i;
$item->value = $type;
$result[] = $item;
$i++;
}
return json_encode($result);
}