wp-duckbehaviorjournal/single-article.php

<?php get_header(); ?>

<!-- Article Content -->
<section class="container my-5">
    <div class="row">
        <div class="col-lg-8 mx-auto">
            <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
                    <h1 class="display-4"><?php the_title(); ?></h1>
                    <p class="text-muted">
                        <?php
                        $authors = get_post_meta(get_the_ID(), 'article_authors', true);
                        if (!empty($authors)) {
                            echo implode('; ', array_map('esc_html', $authors));
                        } else {
                            the_author();
                        }
                        ?>
                    <p class="text-muted">
                        <strong>DOI:</strong>
                        <a href="#" id="doi-link" data-doi="<?php echo esc_attr(get_post_meta(get_the_ID(), 'article_doi', true)); ?>">
                            <?php echo esc_html(get_post_meta(get_the_ID(), 'article_doi', true)); ?>
                        </a>
                        <span id="doi-copy-message" style="display: none; color: green; margin-left: 10px;"><?php _e('Copied!', 'duck-behavior-journal'); ?></span>
                    </p>
                    <p class="text-muted">
                        <strong>Status:</strong> <?php
                                                    $terms = get_the_terms(get_the_ID(), 'publication_status');
                                                    if (!empty($terms) && !is_wp_error($terms)) {
                                                        $term_list = array();
                                                        foreach ($terms as $term) {
                                                            $term_list[] = $term->name;
                                                        }
                                                        echo implode(', ', $term_list);
                                                    }
                                                    ?>
                    </p>
                    <?php if (has_excerpt()) : ?>
                        <p class="text-muted"><strong>Abstract:</strong> <?php echo get_the_excerpt(); ?></p>
                    <?php endif; ?>
                    <?php
                    $attachment_id = get_post_meta(get_the_ID(), 'article_attachment_id', true);
                    $attachment_url = $attachment_id ? esc_url(home_url('/download/' . $attachment_id)) : '';
                    $open_access = get_post_meta(get_the_ID(), 'article_open_access', true);
                    if ($attachment_url) :
                        if ($open_access == '1' || is_user_logged_in()) :
                    ?>
                            <p><a href="<?php echo esc_url($attachment_url); ?>" class="btn btn-primary"><?php _e('Download Full Article', 'duck-behavior-journal'); ?></a></p>
                        <?php else : ?>
                            <p class="text-muted"><strong>Note:</strong> <?php _e('The full paper is available for download for subscribers only.', 'duck-behavior-journal'); ?></p>
                    <?php endif;
                    endif; ?>
                    <hr>
                    <?php the_content(); ?>
            <?php endwhile;
            endif; ?>
        </div>
    </div>
</section>

<script src="<?php echo get_template_directory_uri(); ?>/assets/js/clipboard.js"></script>

<?php get_footer(); ?>