Archive template file for the Tours custom post type.

archive-tours.php

<?php
/**
 *  Archive template file for the Tours custom post type
 *
 * @package    spiralWebDB\GenesisDeveloper
 *
 * @since      1.0.2
 *
 * @author     Robert A. Gadon
 *
 * @link       http://spiralwebdb.com
 *
 * @license    GNU General Public License 2.0+
 */

namespace spiralWebDB\GenesisDeveloper;

add_action( 'pre_get_posts', __NAMESPACE__ .'\modify_query_vars_if_archive' );
/**
 *  Modify the default Query Vars for the custom post type.
 *
 * @since 1.0.2
 *
 * @param array $query_vars Array of query variables to modify for the custom post type.
 *
 * @return array $query_vars
 */
function modify_query_vars_if_archive( $query_vars = array() ) {

	if( is_post_type_archive( $post_type = 'tours' ) )    {

		$query_vars = array(
			'post_type' => 'tours',
			'order'     => 'ASC',
			'orderby'   => 'menu_order',
		);

		foreach ( $query_vars as $var => $value ) {
			set_query_var( $var, $value );
		}
	}

	return $query_vars;

}

Conditional is_post_type_archive() returns true on archive-tours.php page.

$query_vars returns the array values assigned above after looping through the array usingforeach.

An inspection of the global $wp_query variable after the array loop indicates that the$query_vars were properly modified.

However, the 'Simply Show Hooks' plugin tells me that the callback above is not preregistered to the pre_get_posts event. I'm stumped as to why.

Make sure to add the file path name to the child theme's autoload.php file so it gets preloaded before initializing the Genesis framework (parent theme). Then the preregistered callback will get registered and the callback will fire.

No need to include genesis(); at the end of the file if preloading the archive template in the child theme. Once the template file is preloaded, initialize Genesis and the template will run when called.