按属性和有库存的产品显示相关产品

Question

根据属性显示相关产品，效果很好。

add_action( 'woocommerce_after_single_product_summary', 'custom_output_product_collection', 12 );
function custom_output_product_collection(){

## --- YOUR SETTINGS --- ##

$attribute = "Color"; // <== HERE define your attribute name
$limit     = "3";     // <== Number of products to be displayed
$cols      = "3";     // <== Number of columns
$orderby   = "rand";  // <== Order by argument (random order here)

## --- THE CODE --- ##

global $post, $wpdb;

// Formatting the attribute
$attribute = sanitize_title( $attribute );
$taxonomy  = 'pa_' . $attribute;

// Get the WP_Term object for the current product and the defined product attribute
$terms = wp_get_post_terms( $post->ID, $taxonomy );
$term = reset($terms);

// Get all product IDs that have  the same product attribute value (except current product ID)
$product_ids = $wpdb->get_col( "SELECT DISTINCT tr.object_id
    FROM {$wpdb->prefix}term_relationships as tr
    JOIN {$wpdb->prefix}term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id
    JOIN {$wpdb->prefix}terms as t ON tt.term_id = t.term_id
    WHERE tt.taxonomy LIKE '$taxonomy' AND t.term_id = '{$term->term_id}' AND tr.object_id != '{$post->ID}'" );

// Convert array values to a coma separated string
$ids = implode( ',', $product_ids );

## --- THE OUTPUT --- ##

echo '<section class="'.$attribute.' '.$attribute.'-'.$term->slug.' products">
    <h2>'.__( "Collection", "woocommerce" ).': '.$term->name.'</h2>';

echo do_shortcode("[products ids='$ids' columns='$cols' limit='$limit' orderby='$orderby']");

echo '</section>';
}
add_action( 'woocommerce_after_single_product_summary', 'custom_output_product_collection', 12 );
function custom_output_product_collection(){

## --- YOUR SETTINGS --- ##

$attribute = "Color"; // <== HERE define your attribute name
$limit     = "3";     // <== Number of products to be displayed
$cols      = "3";     // <== Number of columns
$orderby   = "rand";  // <== Order by argument (random order here)

## --- THE CODE --- ##

global $post, $wpdb;

// Formatting the attribute
$attribute = sanitize_title( $attribute );
$taxonomy  = 'pa_' . $attribute;

// Get the WP_Term object for the current product and the defined product attribute
$terms = wp_get_post_terms( $post->ID, $taxonomy );
$term = reset($terms);

// Get all product IDs that have  the same product attribute value (except current product ID)
$product_ids = $wpdb->get_col( "SELECT DISTINCT tr.object_id
    FROM {$wpdb->prefix}term_relationships as tr
    JOIN {$wpdb->prefix}term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id
    JOIN {$wpdb->prefix}terms as t ON tt.term_id = t.term_id
    WHERE tt.taxonomy LIKE '$taxonomy' AND t.term_id = '{$term->term_id}' AND tr.object_id != '{$post->ID}'" );

// Convert array values to a coma separated string
$ids = implode( ',', $product_ids );

## --- THE OUTPUT --- ##

echo '<section class="'.$attribute.' '.$attribute.'-'.$term->slug.' products">
    <h2>'.__( "Collection", "woocommerce" ).': '.$term->name.'</h2>';

echo do_shortcode("[products ids='$ids' columns='$cols' limit='$limit' orderby='$orderby']");

echo '</section>';
}

很遗憾，缺货的产品也会显示。

我试着添加这个

    FROM {$wpdb->prefix}term_relationships as tr
    JOIN {$wpdb->prefix}term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id
    JOIN {$wpdb->prefix}terms as t ON tt.term_id = t.term_id
         //===========here===========//
    JOIN {$wpdb->postmeta} terms as as ON pm.meta_key = '_stock_status' AND meta_value = 'instock'
         //===========here===========//
    WHERE tt.taxonomy LIKE '$taxonomy' AND t.term_id = '{$term->term_id}' AND tr.object_id != '{$post->ID}'" );

但是没有用。

有谁知道如何让显示的产品都是有货的产品吗？

非常感谢任何帮助，
谢谢

Answer 1

您的起点是正确的，您确实需要查看 postmeta 中的 _stock_status table 但是您有一点错误，因为您没有链接postmeta table 并且你在

行中有错字

JOIN {$wpdb->postmeta} terms as as ON pm.meta_key = '_stock_status' AND meta_value = 'instock'

所以这一行加入postmetatable使用

JOIN {$wpdb->prefix}postmeta as pm ON pm.post_id = tr.object_id

然后在你查看库存状态的地方

AND pm.meta_key = '_stock_status' AND meta_value = 'instock'"

尝试

$product_ids = $wpdb->get_col( "SELECT DISTINCT tr.object_id
    FROM {$wpdb->prefix}term_relationships as tr
    JOIN {$wpdb->prefix}term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id
    JOIN {$wpdb->prefix}terms as t ON tt.term_id = t.term_id
    JOIN {$wpdb->prefix}postmeta as pm ON pm.post_id = tr.object_id
    WHERE tt.taxonomy LIKE '$taxonomy' AND t.term_id = '{$term->term_id}' AND tr.object_id != '{$post->ID}'
    AND pm.meta_key = '_stock_status' AND meta_value = 'instock'" );

我已经测试过了，它对我有用。

按属性和有库存的产品显示相关产品

Show related products by attribute and products that have stock

php

wordpress

product

custom-taxonomy

woocommerce