Wordpress ufak bi soru

<?php
/**
 * The template for displaying all single posts.
 *
 * @link https://developer.wordpress.org/themes/basics/template-hierarchy/#single-post
 *
 * @package revenue
 */

get_header();

if ( function_exists( 'revenue_set_post_views' ) ) :
revenue_set_post_views(get_the_ID());
endif;
?>

<div id="primary" class="content-area">

<main id="main" class="site-main" >

<?php
while ( have_posts() ) : the_post();

get_template_part( 'template-parts/content', 'single' );

// the_post_navigation();

// If comments are open or we have at least one comment, load up the comment template.
if ( comments_open() || get_comments_number() ) :
comments_template();
endif;

endwhile; // End of the loop.
?>

</main><!-- #main -->
</div><!-- #primary -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>