<?php
/**
 * The template for displaying related items for Welcart e-commerce plugin.
 * @link       http://welcustom.net/
 * @author      Mamekko
 * @copyright   Copyright (c)2014 welcustom.net
 */

global $post, $usces;
$categories = get_the_category($post->ID);
if( $categories ){
    $category_ids = array();
    foreach( $categories as $category){
        $category_id = $category->term_id;
        $category_child = get_term_children($category_id, 'category');
        if($category_child != true){
            $category_ids[] = $category->term_id ;
        }
    }
$args=array(
    'category__in' => $category_ids,
    'post__not_in' => array($post->ID),
    'posts_per_page'=> 4,
    'ignore_sticky_posts'=> 1,
    'orderby' => 'rand',
    'meta_query' => array(
		array(
			'key' => '_isku_',
			'value' => '"stocknum";s:1:"0"',
			'compare' => 'NOT LIKE',
		),
        array(
            'key' => '_isku_',
            'value' => '"stocknum";i:0',
            'compare' => 'NOT LIKE',
		)
	)
);	
$my_query = new WP_Query($args);
    if( $my_query->have_posts() ) {
        echo '<aside class="related-item">
                <div class="row">
                    <div class="columns">
                        <h1>'.__( "YOU MAY ALSO LIKE...", "blanc" ) .'</h1>
                    </div>
                </div>
            <div class="row">
                <div class="columns">
                    <ul class="medium-block-grid-4 small-block-grid-2">';
        while ($my_query->have_posts()) {
            $my_query->the_post();
            echo get_template_part('thumbnail-box');
        }
        echo '</ul></div>
        </div>
        </aside>';
        wp_reset_query();
    }
}