Custom Post Pagination not Working

If you’re encountering issues with custom post pagination, here are some suggestions to enhance your implementation.

Custom Post Query:

Ensure your custom post query is correctly set up for the ‘download‘ post type. Here’s an example:

<?php
global $wp_query;
query_posts(array('post_type' => array('download'), 'paged' => $paged));
?>

Loop through Posts and Display Content:

Make sure you are looping through your custom posts and displaying the content using ‘content-item.php‘. The loop structure should look similar to this:

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
    <?php get_template_part('content', 'item'); ?>
<?php endwhile; ?>

Pagination Output:

Include the pagination output within the loop if posts are available. Utilize the ‘st_posts_pagination‘ function to generate pagination links:

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
    <?php get_template_part('content', 'item'); ?>
<?php endwhile; ?>

<div class="col-md-12">
    <div class="page-link text-center">
        <?php st_posts_pagination(); ?>
    </div>
</div>

<?php endif; ?>

Pagination Function Code:

Ensure that the ‘st_posts_pagination‘ function is correctly defined and operational. Here is an improved version of your provided code:

if (!function_exists('st_posts_pagination')) {
    function st_posts_pagination()
    {
        global $wp_query;

        if ($wp_query->max_num_pages > 1) {
            $big = 999999999; // An unlikely integer
            $pagination_args = array(
                'base'      => str_replace($big, '%#%', esc_url(get_pagenum_link($big))),
                'format'    => '?paged=%#%',
                'prev_next' => true,
                'current'   => max(1, get_query_var('paged')),
                'total'     => $wp_query->max_num_pages,
                'type'      => 'array',
                'prev_text' => __('« Previous', 'your-theme-textdomain'),
                'next_text' => __('Next »', 'your-theme-textdomain'),
            );

            $items = paginate_links($pagination_args);

            $pagination = '<ul class="pagination">' . "\n\t<li>";
            $pagination .= join("</li>\n\t<li>", $items);
            $pagination .= "</li>\n</ul>\n";

            echo $pagination;
        }

        return;
    }
}

By following these steps and ensuring that your custom post query, loop, and pagination function are correctly configured, you should be able to resolve any issues with custom post pagination.