Add Custom Post Type To Tag And Category Archive Pages

Here is how to modify the query for default taxonomy archive pages (tag archive page or category archive page) to display custom post types.

/**
 * Add custom post types to the default tag query
 * 
 * This will make sure that the custom post types shows up in the tag archive pages.
 * The idea here is to list both normal posts and cpt named doc under the same tag name.
 *
 * @refer https://wordpress.stackexchange.com/a/285162/90061
 */
function add_cpt_to_defalt_tax_archive( $query ) {
 	
  if ( is_tag() && $query->is_archive() && empty( $query->query_vars['suppress_filters'] ) ) {
 		
  $query->set( 'post_type', array(
       'post', 'doc'
    ));
  }
  return $query;
}
add_filter( 'pre_get_posts', 'add_cpt_to_defalt_tax_archive' );

Replace doc with your custom post type.

Read more on how you can use default taxonomies with custom post types here: https://wordpress.stackexchange.com/a/92436/90061

Hello, I am Arun Basil Lal. Thank you for reading!

I am a freelance WordPress developer with over a decade of experience. I am passionate about making things and traveling the world.

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2 Comments.

  1. Brian Hughes says:

    Thanks for this! It sure helped simplify things for me 🙂

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