wp-duckbehaviorjournal/archive-letter.php

<?php get_header(); ?>

<!-- Archive Content -->
<section class="container my-5">
    <h1 class="display-4 text-center">Letters to the Editor</h1>
    <div class="list-group">
        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
                <a href="<?php the_permalink(); ?>" class="list-group-item list-group-item-action">
                    <h5 class="mb-1"><?php the_title(); ?></h5>
                    <p class="mb-1">
                        <?php
                        $authors = get_post_meta(get_the_ID(), 'article_authors', true);
                        if (!empty($authors)) {
                            echo esc_html($authors[0]);
                            if (count($authors) > 1) {
                                echo ' et al.';
                            }
                        } else {
                            the_author();
                        }
                        ?> | <?php the_date(); ?>
                    </p>
                    <p class="mb-1"><?php the_excerpt(); ?></p>
                </a>
            <?php endwhile;
        else : ?>
            <p><?php _e('Sorry, no letters found.', 'duck-behavior-journal'); ?></p>
        <?php endif; ?>
    </div>
    <div class="row mt-4">
        <div class="pagination col-md-12">
            <?php
            global $wp_query;

            echo paginate_links(array(
                'total' => $wp_query->max_num_pages,
                'current' => max(1, get_query_var('paged')),
                'format' => '?paged=%#%',
                'show_all' => false,
                'end_size' => 2,
                'mid_size' => 1,
                'prev_next' => true,
                'prev_text' => __('« Prev', 'duck-behavior-journal'),
                'next_text' => __('Next »', 'duck-behavior-journal'),
                'type' => 'plain'
            ));
            ?>
        </div>
    </div>
</section>

<?php get_footer(); ?>