[Resolved] Include custom fields in search results

[Author]

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[Bonnie]

I've got a number of custom post types on my website and want to include them within the main site search. I've managed to get this working with the following code in functions.php:

// Include all post types in search
// =============================================================================
function include_post_types_in_search($query) {
	if(is_search()) {
		$post_types = get_post_types(array('public' => true, 'exclude_from_search' => false), 'objects');
		$searchable_types = array();
		if($post_types) {
			foreach( $post_types as $type) {
				$searchable_types[] = $type->name;
			}
		}
		$query->set('post_type', $searchable_types);
	}
	return $query;
}
add_action('pre_get_posts', 'include_post_types_in_search');

The only problem is, this code searches only the titles and content of the custom post types, not the custom fields. Does anyone know of anything I can add to this code to make sure it includes all custom fields as well?

[Bonnie]

Continued searching and managed to find a solution online:

hidden link

Just in case anyone else has the same issue!