SearchWP custom search grouped/child #php #searchwp

test.php

<?php
//Exclude child products from searches
function my_searchwp_exclude( $ids, $engine, $terms ){
	$excluded_product_ids = get_posts( array(
		'post_type' => 'product',
		'nopaging'  => true,
		'fields'    => 'ids',
		'meta_query' => array(
			array(
				'key' => '_children',
				'value' => '',
				'compare' => 'NOT EXISTS'
			)
		),
	));
	$ids = array_merge( $ids, $excluded_product_ids );
	return $ids;
}
add_filter( 'searchwp_exclude', 'my_searchwp_exclude', 10, 3 );
//Index children SKUs when indexing grouped products
function my_searchwp_extra_metadata( $extra_meta, $post_being_indexed ) {
	if( 'product' == $post_being_indexed->post_type ){
		$child_skus = array();
		$children = get_post_meta( $post_being_indexed->ID, '_children', true );
		foreach( $children as $child ){
			$child_sku = get_post_meta( $child, '_sku', true );
			$child_skus[] = $child_sku;
		}
		$extra_meta['child_skus'] = implode( ',', $child_skus );
	}
	return $extra_meta;
}
add_filter( 'searchwp_extra_metadata', 'my_searchwp_extra_metadata', 10, 2 );
function my_searchwp_author_meta_keys( $keys ){
	// the keys we used to store author meta (see https://gist.github.com/jchristopher/8558947 for more info)
	$my_child_skus = array(
		'child_skus',
	);
	// merge my custom meta keys with the existing keys
	$keys = array_merge( $keys, $my_child_skus );
	// make sure there aren't any duplicates
	$keys = array_unique( $keys );
	return $keys;
}
add_filter( 'searchwp_custom_field_keys', 'my_searchwp_author_meta_keys', 10, 1 );