Woocommerce 按标题或产品标签搜索产品

Question

我使用下面的代码搜索产品，但我只需要按标题或产品标签搜索产品。我该怎么做？

function search_by_title_or_tags( WP_Query $query ): void{
    $search_terms = $query->get( 's' );

    if ( $query->is_search() ) {

        if ( ! $search_terms ) {
             add_action( 'wp', function () use ( $query ) {
             $query->set_404();
             status_header( 404 );
             nocache_headers();
            } );
        }

        $query->set( 'post_type', array( 'post', 'product' )  );
        $query->set( 'posts_per_page', SEARCH_GRID_COUNT_ITEMS );
    }
}

add_action( 'pre_get_posts', 'search_by_title_or_tags' );

Answer 1

我找到了解决方案。我添加了另一个钩子the_posts，它可以帮助我解决问题。添加以下代码，希望对某人有所帮助：

function include_tags_in_search( WP_Query $query ): void{
    $search_terms = $query->get( 's' );

    if ( $query->is_search() ) {
        global $the_original_paged;
        $the_original_paged = $query->get( 'paged' ) ? $query->get( 'paged' ) : 1;
        if ( ! $search_terms ) {
             add_action( 'wp', function () use ( $query ) {
             $query->set_404();
             status_header( 404 );
             nocache_headers();
            } );
        }
        $query->set( 'paged', null );
        $query->set( 'post_type', array( 'post', 'product' )  );
        $query->set( 'posts_per_page', SEARCH_GRID_COUNT_ITEMS );
    }
}
add_action( 'pre_get_posts', 'include_tags_in_search' );

function add_posts_by_tags( $posts, WP_Query $query ): array {
    if ( $query->is_search() ) {
        global $the_original_paged;
        remove_filter( 'the_posts', 'add_posts_by_tags' );
        $posts_product_cat = new WP_Query( array(
         'posts_per_page' => -1,
         'tax_query' => array(
              array(
                'taxonomy' => 'product_tag',
                'field'    => 'name',
                'terms'    => explode( ' ', esc_attr( $query->get( 's' ) ) )
              )
          )
        ) );
        $merged = array_unique( array_merge( $posts, $posts_product_cat->get_posts() ), SORT_REGULAR );
        $posts = array_slice( $merged, ( SEARCH_GRID_COUNT_ITEMS * ( $the_original_paged - 1 ) ), SEARCH_GRID_COUNT_ITEMS );
        $query->found_posts = $posts;
        $query->set( 'paged', $the_original_paged );
        $query->post_count = count( $posts );
        $query->max_num_pages = ceil( count( $merged ) / SEARCH_GRID_COUNT_ITEMS );
        unset( $the_original_paged );
        return $posts;
    }

    return $posts;
}
add_filter( 'the_posts', 'add_posts_by_tags', 10, 2 );