How to Fix Custom Wordpress Loop with Pagination on Single Post View?

Question

I have a custom post type called "Releases" set up and paginated perfectly using the following code:

The Loop

    <?php
    $paged = (get_query_var('page')) ? get_query_var('page') : 1;
    $args = array( 'post_type' => 'releases', 'posts_per_page' => 3, 'paged' => $paged, 'page' => $paged );
    $loop = new WP_Query( $args );
    while ( $loop->have_posts() ) : $loop->the_post(); 
    ?>

       <!-- Loop Content -->
          <article>
            <h3><?php the_title(); ?></h3>
            <div><?php the_excerpt(); ?></div>
          </article>
        <!-- end Loop Content -->

    <?php endwhile; ?>

       <!-- Pagination -->
    <?php
        if (function_exists('single_view_pagination')) {
            single_view_pagination($loop->max_num_pages,"", $paged);
        }
    ?>
       <!-- end Pagination -->

The Function

 function single_view_pagination($numpages = '', $pagerange = '', $paged='') {

   if (empty($pagerange)) {
     $pagerange = 2;
   }

   global $paged;
   if (empty($paged)) {
     $paged = 1;
   }

   if ($numpages == '') {
     global $wp_query;
     $numpages = $wp_query->max_num_pages;
     if(!$numpages) {
         $numpages = 1;
     }
   }

   $pagination_args = array(
     'base'            => get_pagenum_link(1) . '%_%',
     'format'          => 'page/%#%',
     'total'           => $numpages,
     'current'         => $paged,
     'show_all'        => False,
     'end_size'        => 1,
     'mid_size'        => $pagerange,
     'prev_next'       => True,
     'prev_text'       => __('«'),
     'next_text'       => __('»'),
     'type'            => plain,
     'add_args'        => false,
     'add_fragment'    => ''
   );

   $paginate_links = paginate_links($pagination_args);

   if ($paginate_links) {
     echo "<nav>";
          echo "<ul>";
       echo "<li>" . $paginate_links . "</li> ";
            echo "</ul>";
     echo "</nav>";
   }
 }

The Problem

Now, when using the code above and viewing the Archive of the custom post type, everything works perfectly and the pagination URLs link as followed:

http://localhost/releases/page/2   
http://localhost/releases/page/3

However, when viewing the Single Post of the custom post type, the issue is that the pagination URLs change to:

http://localhost/releases/post-name/page/2  
http://localhost/releases/post-name/page/3  

Is there any way I can update this code or set up an new function in order to get the pagination URLs on the Single Post view to link properly & without the post-name in the URLs like this?

http://localhost/releases/page/1  
http://localhost/releases/page/2  
http://localhost/releases/page/3  

All help is greatly appreciated. Thanks in advance!

Edit: Here's a screenshot diagram showing exactly the issue that I am trying to fix. I need the function to output the page number links for the post type "Releases", instead of outputting the page number links of the current post "Post Name."

Answer 1

You need to set the base properly so the function knows what URL to make the pagination links relative to.

Assuming /releases/ is a post type archive, you can try:

'base' => get_post_type_archive_link( 'releases' ) . '%_%',

Answer 2

With the help of Milo's code above, I was able find a solution using this:

'base' => get_pagenum_link(1) . '%_%',

Hope this can help out anyone else that might stumble across this problem. Thanks!