Advanced Find with Pagination

adv_find_pager.php

<?php
/**
 * For use in a page with WolfCMS - http://www.wolfcms.org
 * Uses mtylerb's Advanced Find, and the Pager helper to paginate results
 * AdvancedFind - https://github.com/mtylerb/adv-find
 * Pager - http://www.wolfcms.org/wiki/helpers:pager
 */

// USE THIS FOR DYNAMIC ADDITION OF BRANCHES TO ADVFIND
    $categories = array();
    foreach ($this->find('/')->children() as $child) {
        if (count($this->find($child->slug())->children()) > 0) {
        array_push($categories,$child->slug());
        }
    }
?>

<?php // get all the articles we want to paginate with AdvancedFind:
$all_articles = adv_find(
/**
 * UNCOMMENT EITHER LINE 25 _OR_ LINE 26
 * - use "array()" for manual addition of slugs; 
 * - use "$categories" for dynamic array of pages.
 */
//    array('news/', 'articles/'), 
//    $categories,
    array('order' => 'published_on DESC')); // ASC or DESC 
?>

<?php use_helper('Pager'); // set up Pager...
$pager = new Pager(array(
    'style' => 'classic', // other styles are available
    'items_per_page' => 4, // set this to number of your choice
    'total_items' => count($all_articles)
)); ?>

<?php // make sure number before "true" = "items_per_page" set above:
    $last_articles = array_slice($all_articles, $pager->sql_offset, 4, true); ?>

<?php foreach ($last_articles as $article) : // loop through our items: ?>

<div class="entry">
    <h3><?php echo $article->link(); ?></h3>
    <p class="info">Posted by <?php echo $article->author(); ?> | posted on <?php echo $article->date(); ?></p>
</div>

<?php endforeach; ?>

<?php echo $pager; ?>