Wordpress WooCommerce获取多订单/批量查询的订单物料数量

我在另一页上找到了这个代码

function jdr_get_orders_ids_from_product_id( $product_id, $orders_statuses = [ 'wc-completed' ] ) {
    global $wpdb;

    // Define HERE the orders status to include in  <==  <==  <==  <==  <==  <==  <==
    $orders_statuses = "'" . implode( "', '", $orders_statuses ) . "'";

    # Get All defined statuses Orders IDs for a defined product ID (or variation ID)
    return $wpdb->get_col( "
        SELECT DISTINCT woi.order_id
        FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim,
             {$wpdb->prefix}woocommerce_order_items as woi,
             {$wpdb->prefix}posts as p
        WHERE  woi.order_item_id = woim.order_item_id
        AND woi.order_id = p.ID
        AND p.post_status IN ( $orders_statuses )
        AND woim.meta_key IN ( '_product_id', '_variation_id' )
        AND woim.meta_value LIKE '$product_id'
        ORDER BY woi.order_item_id DESC"
    );
}

但这需要循环遍历每个订单和每个项目，这需要很长时间才能加载到需要此功能的页面（100多个订单）

我想知道是否有类似于第一个函数的SQL解决方案

---

谢谢你的帮助

这就是解决方案：

function jdr_qty_sold_by_product_id( $product_id ) {
  global $wpdb;

  $data = jdr_get_orders_ids_and_item_ids_from_product_id( $product_id );

  $order_item_ids = array_map(function ($obj) { return $obj->order_item_id; }, $data);

  $order_item_ids = "'" . implode( "', '", $order_item_ids ) . "'";

  return $wpdb->get_var( "
      SELECT sum(meta_value)
      FROM {$wpdb->prefix}woocommerce_order_itemmeta
      WHERE order_item_id IN ( $order_item_ids )
      AND meta_key = '_qty'"
  );
}

在我编辑了其他函数以包含项_id之后：

function jdr_get_orders_ids_and_item_ids_from_product_id( $product_id, $orders_statuses = [ 'wc-completed' ] ) {
    global $wpdb;

    $orders_statuses = "'" . implode( "', '", $orders_statuses ) . "'";

    return $wpdb->get_results( "
        SELECT DISTINCT woi.order_id, woi.order_item_id
        FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim,
             {$wpdb->prefix}woocommerce_order_items as woi,
             {$wpdb->prefix}posts as p
        WHERE  woi.order_item_id = woim.order_item_id
        AND woi.order_id = p.ID
        AND p.post_status IN ( $orders_statuses )
        AND woim.meta_key IN ( '_product_id', '_variation_id' )
        AND woim.meta_value LIKE '$product_id'
        ORDER BY woi.order_item_id DESC"
    );
}

---

这最终成为解决方案：

function jdr_qty_sold_by_product_id( $product_id ) {
  global $wpdb;

  $data = jdr_get_orders_ids_and_item_ids_from_product_id( $product_id );

  $order_item_ids = array_map(function ($obj) { return $obj->order_item_id; }, $data);

  $order_item_ids = "'" . implode( "', '", $order_item_ids ) . "'";

  return $wpdb->get_var( "
      SELECT sum(meta_value)
      FROM {$wpdb->prefix}woocommerce_order_itemmeta
      WHERE order_item_id IN ( $order_item_ids )
      AND meta_key = '_qty'"
  );
}

在我编辑了其他函数以包含项_id之后：

function jdr_get_orders_ids_and_item_ids_from_product_id( $product_id, $orders_statuses = [ 'wc-completed' ] ) {
    global $wpdb;

    $orders_statuses = "'" . implode( "', '", $orders_statuses ) . "'";

    return $wpdb->get_results( "
        SELECT DISTINCT woi.order_id, woi.order_item_id
        FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim,
             {$wpdb->prefix}woocommerce_order_items as woi,
             {$wpdb->prefix}posts as p
        WHERE  woi.order_item_id = woim.order_item_id
        AND woi.order_id = p.ID
        AND p.post_status IN ( $orders_statuses )
        AND woim.meta_key IN ( '_product_id', '_variation_id' )
        AND woim.meta_value LIKE '$product_id'
        ORDER BY woi.order_item_id DESC"
    );
}