根据子类别显示相关产品 - woocommerce

Question

我想在我的单个产品页面中显示与子类别而不是父类别相关的相关产品。现在我有大约 100 个产品，其中大约 90 个属于同一个父类别（它们也属于其他父类别）。因此，在单个产品页面中，由于父类别很大，您几乎可以看到任何随机产品。 有没有办法限制这个？我做了一项研究，发现了一些关于 woocommerce 1.6 版的答案......现在我使用的是 3.2.6，所以它不起作用。

Answer 1

您可以使用此代码或适应您的情况，希望它的工作.. 将其添加到您的 function.php

add_filter( 'woocommerce_product_related_posts', 'woocommerce_get_direct_related_products' );

function woocommerce_get_direct_related_products() {
    global $woocommerce, $product;

    // Related products are found from category
    $cats_array = array(0);

    // Get categories
    $terms = wp_get_post_terms( $product->id, 'product_cat' );

    //Select only the category which doesn't have any children
    foreach ( $terms as $term ) {
        $children = get_term_children( $term->term_id, 'product_cat' );
        if ( !sizeof( $children ) )
            $cats_array[] = $term->term_id;
    }

    // Don't bother if none are set
    if ( sizeof( $cats_array ) == 1 ) return array();

    // Meta query
    $meta_query = array();
    $meta_query[] = $woocommerce->query->visibility_meta_query();
    $meta_query[] = $woocommerce->query->stock_status_meta_query();

    $limit = 5;

    // Get the posts
    return array(
        'orderby'       => 'rand',
        'posts_per_page'=> $limit,
        'post_type'     => 'product',
        'fields'        => 'ids',
        'meta_query'    => $meta_query,
        'tax_query'     => array(
            array(
                'taxonomy'  => 'product_cat',
                'field'     => 'id',
                'terms'     => $cats_array
            )
        )
    );
}

Answer 2

这可能与 Woocommerce: Only show related products from same subcategory 重复

另一种解决方法是覆盖模板文件[your-theme]/woocommerce/single-product/related.php

以下内容已更新为适用于 Woocommerce 3.x

<?php
/**
 * Related Products
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/single-product/related.php.
 *
 * HOWEVER, on occasion WooCommerce will need to update template files and you
 * (the theme developer) will need to copy the new files to your theme to
 * maintain compatibility. We try to do this as little as possible, but it does
 * happen. When this occurs the version of the template file will be bumped and
 * the readme will list any important changes.
 *
 * @see         https://docs.woocommerce.com/document/template-structure/
 * @author      WooThemes
 * @package     WooCommerce/Templates
 * @version     3.9.0
 */

if ( ! defined( 'ABSPATH' ) ) {
  exit;
}

global $product, $woocommerce_loop;

if ( empty( $product ) || ! $product->exists() ) {
  return;
}

if ( ! $related = $product->get_related( $posts_per_page ) ) {
  return;
}

// Get ID of current product, to exclude it from the related products query
$current_product_id = $product->get_id();

$cats_array = array(0);

// get categories
$terms = wp_get_post_terms( $product->id, 'product_cat' );

// select only the category which doesn't have any children
foreach ( $terms as $term ) {
  $children = get_term_children( $term->term_id, 'product_cat' );
  if ( !sizeof( $children ) )
  $cats_array[] = $term->term_id;
}

$args = apply_filters( 'woocommerce_related_products_args', array(
  'post_type' => 'product',
  'post__not_in' => array( $current_product_id ),   // exclude current product
  'ignore_sticky_posts' => 1,
  'no_found_rows' => 1,
  'posts_per_page' => $posts_per_page,
  'orderby' => $orderby,
  'tax_query' => array(
    array(
        'taxonomy' => 'product_cat',
        'field' => 'id',
        'terms' => $cats_array
    ),
  )
));

$products                    = new WP_Query( $args );
$woocommerce_loop['name']    = 'related';
$woocommerce_loop['columns'] = apply_filters( 'woocommerce_related_products_columns', $columns );

if ( $products->have_posts() ) : ?>

  <section class="related products">

    <?php
    $heading = apply_filters( 'woocommerce_product_related_products_heading', __( 'Related products', 'woocommerce' ) );

    if ( $heading ) :
    ?>
      <h2><?php echo esc_html( $heading ); ?></h2>
    <?php endif; ?>

    <?php woocommerce_product_loop_start(); ?>

      <?php while ( $products->have_posts() ) : $products->the_post(); ?>

        <?php wc_get_template_part( 'content', 'product' ); ?>

      <?php endwhile; // end of the loop. ?>

    <?php woocommerce_product_loop_end(); ?>

  </section>

<?php endif;

wp_reset_postdata();