Popular posts #2

functions.php

//----- Popular post-2
// DIY Popular Posts @ https://digwp.com/2016/03/diy-popular-posts/
function shapeSpace_popular_posts($post_id) {
	$count_key = 'popular_posts';
	$count = get_post_meta($post_id, $count_key, true);
	if ($count == '') {
		$count = 0;
		delete_post_meta($post_id, $count_key);
		add_post_meta($post_id, $count_key, '0');
	} else {
		$count++;
		update_post_meta($post_id, $count_key, $count);
	}
}
function shapeSpace_track_posts($post_id) {
	if (!is_single()) return;
	if (empty($post_id)) {
		global $post;
		$post_id = $post->ID;
	}
	shapeSpace_popular_posts($post_id);
}
add_action('wp_head', 'shapeSpace_track_posts');

index.php

//Start the loop
<?php 
				$popular = new WP_Query(array('posts_per_page'=>7, 'meta_key'=>'popular_posts', 'orderby'=>'meta_value_num', 'order'=>'DESC') );
				while ($popular->have_posts() ) : $popular->the_post();
			 ?>

			 <article class="post">
				<div class="img-wrapper"><?php the_post_thumbnail(); ?></div>
				<h5 class="category-name"><?php the_category(','); ?></h5>
				<h3><?php the_title(); ?></h3>  
				<p>
					<?php the_excerpt(); ?>
				</p>
				<ul class="post-info">
					<li><a href="#"><?php the_author(); ?></a></li>
					<li><a href="#"><?php echo get_the_date(); ?></a></li>
					<li><a href="#"><?php comments_number('No Comments', '1 Comment', '% Comments'); ?></a></li>
				</ul>
				<a href="<?php the_permalink(); ?>" class="read-more" >Read More</a>
			</article>
			<? 	endwhile;
				wp_reset_query();
			?>	

			<?php pagenavi(); ?>