static function get_subscribers($item)
{
$subscriber_ids = array();
foreach (ORM::factory("subscription")->select("user_id")->join("items", "subscriptions.item_id", "items.id")->where("items.left_ptr", "<=", $item->left_ptr)->where("items.right_ptr", ">", $item->right_ptr)->find_all()->as_array() as $subscriber) {
$subscriber_ids[] = $subscriber->user_id;
}
if (empty($subscriber_ids)) {
return array();
}
$users = identity::get_user_list($subscriber_ids);
$subscribers = array();
foreach ($users as $user) {
if (access::user_can($user, "view", $item) && !empty($user->email)) {
$subscribers[$user->email] = 1;
}
}
return array_keys($subscribers);
}
