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Add WooCommerce Product (and Variation) SKUs to SearchWP
<?php
// Add WooCommerce Product (and Variation) SKUs to SearchWP.
// @link https://searchwp.com/documentation/knowledge-base/search-woocommerce-skus-and-variation-skus/
add_filter( 'searchwp\entry\data', function( $data, \SearchWP\Entry $entry ) {
// If this is not a Product, there's nothing to do.
if ( 'product' !== get_post_type( $entry->get_id() ) ) {
return $data;
}
$my_extra_meta_key = 'searchwp_skus';
// Retrieve this Product SKU.
$data['meta'][ $my_extra_meta_key ] = [
get_post_meta( $entry->get_id(), '_sku', true )
];
// Retrieve all Variations.
$product_variations = get_posts( [
'post_type' => 'product_variation',
'posts_per_page' => -1,
'fields' => 'ids',
'post_parent' => $entry->get_id(),
] );
if ( empty( $product_variations ) ) {
return $data;
}
// Append all Product Variation SKUs.
foreach ( $product_variations as $product_variation ) {
$sku = get_post_meta( $product_variation, '_sku', true );
$data['meta'][ $my_extra_meta_key ][] = $sku;
}
return $data;
}, 20, 2 );
// Add our Extra Meta entry to SearchWP's UI.
// @link https://searchwp.com/documentation/knowledge-base/search-woocommerce-skus-and-variation-skus/
add_filter( 'searchwp\source\attribute\options', function( $keys, $args ) {
if ( $args['attribute'] !== 'meta' ) {
return $keys;
}
// This key is the same as the one used in the searchwp\entry\data hook above, they must be the same.
$my_extra_meta_key = 'searchwp_skus';
// Add "SearchWP WooCommerce SKUs" Option if it does not exist already.
if ( ! in_array(
$my_extra_meta_key,
array_map( function( $option ) { return $option->get_value(); }, $keys )
) ) {
$keys[] = new \SearchWP\Option( $my_extra_meta_key, 'SearchWP WooCommerce SKUs' );
}
return $keys;
}, 20, 2 );
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