WordPress :: Divi Builder :: Search Module :: Custom Post Types

child-theme-functions.php

<?php

function my_remove_default_et_pb_custom_search() {
	remove_action( 'pre_get_posts', 'et_pb_custom_search' );
	add_action( 'pre_get_posts', 'my_et_pb_custom_search' );
}
add_action( 'wp_loaded', 'my_remove_default_et_pb_custom_search' );

function my_et_pb_custom_search( $query = false ) {
	if ( is_admin() || ! is_a( $query, 'WP_Query' ) || ! $query->is_search ) {
		return;
	}
	if ( isset( $_GET['et_pb_searchform_submit'] ) ) {
		$postTypes = array();
		if ( ! isset($_GET['et_pb_include_posts'] ) && ! isset( $_GET['et_pb_include_pages'] ) ) $postTypes = array( 'post' );
		if ( isset( $_GET['et_pb_include_pages'] ) ) $postTypes = array( 'page' );
		if ( isset( $_GET['et_pb_include_posts'] ) ) $postTypes[] = 'post';
		
		/* BEGIN Add custom post types */
		$postTypes[] = 'product';
		/* END Add custom post types */
		
		$query->set( 'post_type', $postTypes );
		if ( ! empty( $_GET['et_pb_search_cat'] ) ) {
			$categories_array = explode( ',', $_GET['et_pb_search_cat'] );
			$query->set( 'category__not_in', $categories_array );
		}
		if ( isset( $_GET['et-posts-count'] ) ) {
			$query->set( 'posts_per_page', (int) $_GET['et-posts-count'] );
		}
	}
}

Hi there - No idea why but this does not work for me. I tried with post-type "project" - this works, but with any custom post type (in my case "download") it does not have an effect on the search results. Do you have any idea what could have gone wrong? Thanks for your help!