/**
 * Get a wall post message suitable for notifications and status updates
 * @param ElggObject $object
 * @param bool $include_address Include URL address in the message body
 * @return string
 */
function format_wall_message($object, $include_address = false)
{
    $status = $object->description;
    $status = Extractor::render($status);
    $message = array(0 => $status);
    $tagged_friends = get_tagged_friends($object, 'links');
    if ($tagged_friends) {
        $message[2] = '<span class="wall-tagged-friends">' . elgg_echo('wall:with', array(implode(', ', $tagged_friends))) . '</span>';
    }
    $location = $object->getLocation();
    if ($location) {
        $location = elgg_view('output/wall/location', array('value' => $location));
        $message[3] = '<span class="wall-tagged-location">' . elgg_echo('wall:at', array($location)) . '</span>';
    }
    $attachments = get_attachments($object, 'links');
    if ($attachments) {
        $attachments_str = count($attachments) == 1 ? elgg_echo('wall:attached:single') : elgg_echo('wall:attached', array(count($attachments)));
        $message[4] = '<span class="wall-tagged-attachments">' . $attachments_str . '</span>';
    }
    if (!$status || $include_address) {
        $address = $object->address;
        if ($address && strpos($status, $address) === false) {
            $message[1] = elgg_view('output/url', array('href' => $address, 'class' => 'wall-attached-url'));
        }
    }
    ksort($message);
    $output = implode(' ', $message);
    return elgg_trigger_plugin_hook('message:format', 'wall', array('entity' => $object), $output);
}
     $user_guids = array_unique($user_guids);
     sort($user_guids);
     $acl_hash = sha1(implode(':', $user_guids));
     $dbprefix = elgg_get_config('dbprefix');
     $query = "SELECT * FROM {$dbprefix}access_collections WHERE name = '{$acl_hash}'";
     $collection = get_data_row($query);
     $acl_id = $collection->id;
     if (!$acl_id) {
         $site = elgg_get_site_entity();
         $acl_id = create_access_collection($acl_hash, $site->guid);
         update_access_collection($acl_id, $user_guids);
     }
     $wall_post->access_id = $acl_id;
     $wall_post->save();
 }
 $extractor = Extractor::extract($status);
 if (count($extractor->hashtags)) {
     $wall_post->tags = $extractor->hashtags;
 }
 if (count($extractor->usernames)) {
     foreach ($extractor->usernames as $username) {
         $user = get_user_by_username($username);
         if (elgg_instanceof($user) && !in_array($user->guid, $friend_guids)) {
             $friend_guids[] = $user->guid;
         }
     }
 }
 // Add 'tagged_in' relationships
 // If the access level for the post is not set to private, also create a river item with the access level specified in their settings by the tagged user
 if (count($friend_guids)) {
     foreach ($friend_guids as $friend_guid) {