Question

我想在content-oroduct_cat.php页面中显示最低的简单商品价格。 Fancy Squares中的以下代码用于显示最低价格，但我只想显示简单产品，即省略分组产品。

/* SHOW LOWEST PRICE ON CATEGORY PAGE */
//woocommerce get lowest price in category
function wpq_get_min_price_per_product_cat($term_id)
{    
    global $wpdb;

    $sql = "
    SELECT  MIN( meta_value+0 ) as minprice
    FROM {$wpdb->posts} 
    INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)
    INNER JOIN {$wpdb->postmeta} ON ({$wpdb->posts}.ID = {$wpdb->postmeta}.post_id) 
    WHERE  
      ( {$wpdb->term_relationships}.term_taxonomy_id IN (%d) ) 
    AND {$wpdb->posts}.post_type = 'product'  
    AND {$wpdb->posts}.post_status = 'publish' 
    AND {$wpdb->postmeta}.meta_key = '_price'
    ";

    return $wpdb->get_var($wpdb->prepare($sql, $term_id));
}

我尝试使用：

AND {$wpdb->posts}.product_type = 'simple'

但这不起作用。我如何只显示简单的产品？

Answer 1

您的查询无效，因为未存储product_type posts表存储在term_taxonomy表中。得到的希望你必须使用Sub查询，它将获取所有简单的产品和主要查询根据类别对其进行过滤。

我已修改您的wpq_get_min_price_per_product_cat()，如下所示

function wh_get_min_price_per_product_cat($term_id)
{
    global $wpdb;

    $sql = "
    SELECT  MIN( meta_value+0 ) as minprice
    FROM {$wpdb->posts} 
    INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)
    INNER JOIN {$wpdb->postmeta} ON ({$wpdb->posts}.ID = {$wpdb->postmeta}.post_id) 
    WHERE  
      ( {$wpdb->term_relationships}.term_taxonomy_id IN (%d) ) 
        AND {$wpdb->posts}.post_type = 'product' 
        AND {$wpdb->posts}.post_status = 'publish' 
        AND {$wpdb->postmeta}.meta_key = '_price'
        AND {$wpdb->posts}.ID IN (SELECT posts.ID
                FROM {$wpdb->posts} AS posts
                INNER JOIN {$wpdb->term_relationships} AS term_relationships ON posts.ID = term_relationships.object_id
                INNER JOIN {$wpdb->term_taxonomy} AS term_taxonomy ON term_relationships.term_taxonomy_id = term_taxonomy.term_taxonomy_id
                INNER JOIN {$wpdb->terms} AS terms ON term_taxonomy.term_id = terms.term_id
                WHERE term_taxonomy.taxonomy = 'product_type'
                AND terms.slug = 'simple'
                AND posts.post_type = 'product')";
    return $wpdb->get_var($wpdb->prepare($sql, $term_id));
}

代码进入您的活动子主题（或主题）的functions.php文件。或者也可以在任何插件php文件中。

使用

echo wh_get_min_price_per_product_cat($cat_id);

代码经过测试并有效。

参考：SQL query to check product_type in WooCommerce

希望这有帮助！

在类别页面中显示最低的简单产品价格

1 个答案: