Woocommerce通过自定义查询获取产品

Question

这是基于WordPress和WooCommerce并处理post和post_meta表

我必须获取所有具有meta_key =“ _shop”和meta_value =“ yes”的产品ID。

典型情况：

如果元键和元值与父产品匹配，则其所有变体也必须包括在内。

如果元键和元值未与父级同步，但其变体具有元键，并且元值匹配，则仅返回变体。

Product(#18)(simple):           _shop = 'yes'
Product(#19)(variable):         _shop = 'yes' (Parent is Yes)
       Product(#20)(variation): _shop = 'yes'
       Product(#21)(variation): _shop = 'no'
       Product(#22)(variation): _shop = 'no'
Product(#23)(simple):           _shop = 'yes'
Product(#24)(variable):         _shop = 'no'  (parent is no)
       Product(#25)(variation): _shop = 'no'
       Product(#26)(variation): _shop = 'yes' (Only this variation)
       Product(#20)(variation): _shop = 'no'

我需要的ID：

  

＃18＃19＃20＃21＃22＃23＃26

Answer 1

    select  productID from your_table
   where meta_key = "_shop" and meta_value = "yes"

Answer 2

add_action('init',function(){
    global $wpdb;
    $ids = $wpdb->get_results("
                                SELECT p.ID as id 
                                From $wpdb->posts as p
                                LEFT JOIN $wpdb->postmeta as m
                                ON p.ID = m.post_id
                                WHERE m.meta_key = '_shop'
                                AND m.meta_value = 'yes'
                                AND p.post_type = 'product' OR p.post_type = 'product_variation'
                            ");
    if(!empty($ids)){
        foreach ($ids as $id) {
            echo $id->id;
        }
    }
});