Full source code publish-post.php

publish-post.php

<?php
/**
 * Template Name: Publish Post
 */

if ( !is_user_logged_in() ) {
    auth_redirect();
}
$current_user = wp_get_current_user();
get_header();
?>

<div class="wrap">
    <div id="primary" class="content-area">
        <main id="main" class="site-main" role="main">
            <?php
            if ($_GET['rwmb_frontend_field_post_id']) {
                $post_id = $_GET['rwmb_frontend_field_post_id'];
                $author_id = get_post_field ('post_author', $post_id);
                $post_status = get_post_field ('post_status', $post_id);
                $user_id = $current_user->ID;

                if ($author_id == $user_id && $post_status == "pending") {
                    while ( have_posts() ) : the_post();
                        the_content();
                    endwhile;
                } else {
                    echo "You can't edit this post.";
                }
            } else { 
                while ( have_posts() ) : the_post();
                    the_content();
                endwhile;
            }
            ?>
        </main>
    </div>
</div>
<?php get_footer(); ?>