single.php

<?php
/**
 * The template for displaying all single posts and attachments
 *
 * @package WordPress
 * @subpackage Aalto_Blogs
 * @since Official Aalto Blogs Theme 1.0
 */

get_header(); ?>

<?php $layout = get_theme_mod( 'single_layout' ) ?: 'wide';

if ( $layout === 'narrow' ) : ?>

  <div class="container">
    <div class="row">
      <?php $offset = is_active_sidebar( 'sidebar-1' ) ? '' : 'col-md-offset-2'; ?>
      <div id="primary" class="content-area col-xs-12 col-md-8 <?php echo $offset; ?>">
        <main id="main" class="site-main row" role="main">
          <?php while ( have_posts() ) : the_post();
            get_template_part( 'template-parts/content', 'single' );

            // If comments are open or we have at least one comment, load up the comment template.
          ?> 
          <?php
            if ( comments_open() || get_comments_number() ) {
              comments_template();
            }

            if ( is_singular( 'attachment' ) ) {
              // Parent post navigation.
              // Parent post navigation.
              $ancestors = get_post_ancestors( get_the_ID() );
              aalto_blogs_retrieve_posts( $ancestors, 'attachment' );
            }

            elseif ( is_singular( 'post' ) ) {
              $adjacent_posts = array( get_previous_post( true ), get_next_post( true) );
              aalto_blogs_retrieve_posts( $adjacent_posts );
            }
          ?>
          <?php endwhile; ?>
        </main><!-- end .site-main -->
      </div><!-- end .content-area -->
      <?php get_sidebar(); ?>
    </div><!-- end .row -->
  </div><!-- end .container -->

<?php else : ?>

  <div id="primary" class="content-area reading-mode">
    <main id="main" class="site-main row" role="main">
      <?php while ( have_posts() ) : the_post();
        get_template_part( 'template-parts/content', 'single' );
      ?>

      <div class="container">
        <div class="row">
          <div class="col-xs-12 col-md-8 col-md-offset-2">
            <div class="row">
              <?php
                 // If comments are open or we have at least one comment, load up the comment template.
                if ( comments_open() || get_comments_number() ) {
                  comments_template();
                }

                if ( is_singular( 'attachment' ) ) {
                  // Parent post navigation.
                  $ancestors = get_post_ancestors( get_the_ID() );
                  aalto_blogs_retrieve_posts( $ancestors, 'attachment' );
                }

                elseif ( is_singular( 'post' ) ) {
                  $adjacent_posts = array( get_next_post( true ), get_previous_post( true ) );
                  aalto_blogs_retrieve_posts( $adjacent_posts );
                }
              ?>
            </div>
          </div>
        </div>
      </div>
      <?php endwhile; ?>

    </main><!-- end .site-main -->
  </div><!-- end .content-area -->
<?php endif; ?>

<?php get_footer(); ?>