WooCommerce

Question

Woocommerce 相关产品模板位于：

/wp-content/plugins/woocommerce/templates/single-product/related.php

但它目前按随机排序。

我想通过 'total_sales' + 'sales_count' 订购（它们是 2 meta_keys 保存整数值和 'sales_count' 是一个额外的 自定义 字段）。

这里是查询：

 $args = apply_filters( 'woocommerce_related_products_args', array(
    'post_type'            => 'product',
    'ignore_sticky_posts'  => 1,
    'no_found_rows'        => 1,
    'posts_per_page'       => 4,
    'orderby'   => 'total_sales',
     'order' => 'DESC',
    'post__in'             => $related
) );
    $products = new WP_Query( $args );

以上查询排序产品购买 total_sales 但我需要使用 total_sales 的总和对其进行排序和 sales_count?

有没有办法做到这一点？。

谢谢

Answer 1

I doesn't understand very well the purpose of $soldty = get_post_meta( $product->id, 'sales_count', true );, as default 'total_sales' for a product makes already the calculation of all items sold (the item quantity sold is added each time to the count).

无论如何，如果你真的需要这个计算，最好的选择是制作一个函数，create/update一个新的自定义字段，对于每个产品，计算：

add_action( 'wp_loaded', 'products_update_total_sales_calculation' );
function products_update_total_sales_calculation(){
    $sales = array();
    $all_products = get_posts( array(
        'post_type'            => 'product',
        'post_status'          => 'publish',
        'posts_per_page'       => -1,
    ) );
    foreach($all_products as $item) {
        $units_sold = get_post_meta( $item->ID, 'total_sales', true );
        $soldty = get_post_meta( $item->ID, 'sales_count', true );
        if(empty($soldty)) $soldty = 0;
        $result = $units_sold + $soldty;
        update_post_meta( $item->ID, 'global_sales_count', $result );
    }
}

此函数计算产品销售额和create/update自定义字段'global_sales_count'，其中包含计算值。

现在您可以根据这个新的自定义字段自定义查询 'orderby' 参数：

$args = apply_filters( 'woocommerce_related_products_args', array(
    'post_type'            => 'product',
    'ignore_sticky_posts'  => 1,
    'no_found_rows'        => 1,
    'posts_per_page'       => 4,
    'meta_key'             => 'global_sales_count', // <== <== the new custom field
    'orderby'              => 'meta_value_num',
    'order'                => 'DESC',
    'post__in'             => $related

) );
    $products = new WP_Query( $args );

如果您不需要计算，'meta_key' 值将更改为现有 'total_sales' 产品 meta_key，这样：

$args = apply_filters( 'woocommerce_related_products_args', array(
    'post_type'            => 'product',
    'ignore_sticky_posts'  => 1,
    'no_found_rows'        => 1,
    'posts_per_page'       => 4,
    'meta_key'             => 'total_sales', // <== <== the existing meta_key 
    'orderby'              => 'meta_value_num',
    'order'                => 'DESC',
    'post__in'             => $related

) );
    $products = new WP_Query( $args );

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