I posted this information below a few years back on Stack Overflow. It continues to be popular, so I’m adding the same information here… Feel free to upvote the answer if it works for you. 🙂
Unfortunately, to this day there isn’t a lot of good information about pagination with a custom post type wp_query. It’s very surprising considering the endless uses for custom post types (CPT) and how long they have been part of WordPress. Additionally, a lot of the information out there about this topic is unclear or in my opinion not the best advice. Anyway, moving on, I am here today to hopefully help someone out with this.
There are two ways that I would suggest to tackle the problem, though I strongly recommend option 1. Alright, time to dig in!
Option 1 – use max_num_pages variable
<?php $paged = (get_query_var('paged')) ? get_query_var('paged') : 1; $args = array( 'posts_per_page' => 1, 'paged' => $paged, 'post_type' => 'cpt_type' ); $cpt_query = new WP_Query($args); ?> <?php if ($cpt_query->have_posts()) : while ($cpt_query->have_posts()) : $cpt_query->the_post(); ?> // Inside of loop code goes here like usual... <?php endwhile; endif; ?> <nav> <ul> <li><?php previous_posts_link( '« PREV', $cpt_query->max_num_pages) ?></li> <li><?php next_posts_link( 'NEXT →', $cpt_query->max_num_pages) ?></li> </ul> </nav>
You’ll see above, a slightly different format for ‘previous_posts_link’ and ‘next_posts_link’ which now access the ‘max_num_pages’ variable. Be sure to use your own query variable name when accessing ‘max_num_pages’. Notice I use
$cpt_query since that is the variable for my query example.
Option 2 – temporarily use the $wp_query variable for your loop query
This is what a lot of folks recommend, but be careful to assign the $wp_query variable to a temp variable and re-assign it or you will run in to all kinds of troubles. Which is why I recommend Option #1. As noted on CSS Tricks, you can do something like this:
<?php $temp = $wp_query; $wp_query = null; $wp_query = new WP_Query(); $wp_query->query('showposts=6&post_type=news'.'&paged='.$paged); while ($wp_query->have_posts()) : $wp_query->the_post(); ?> <!-- LOOP: Usual Post Template Stuff Here--> <?php endwhile; ?> <nav> <?php previous_posts_link('« Newer') ?> <?php next_posts_link('Older →') ?> </nav> <?php $wp_query = null; $wp_query = $temp; // Reset ?>
NOTE: variation for option #1
For the pagination code in option 1, what you can do instead is use the popular WP-PageNavi plugin, but make one change in the code, remove everything within the “nav” element and replace with this code below:
<nav> <?php wp_pagenavi( array( 'query' => $cpt_query ) ); ?> </nav>