Question

我正在尝试显示付款状态为“ ppec-paypal”的某些状态下所有订单的总价值。

我尝试使用AND函数按meta.meta_value进行过滤

add_shortcode( 'show_total_pp', 'show_total_pp_shortcode' );

function show_total_pp_shortcode() {


global $wpdb;

$order_totalpp = apply_filters( 'woocommerce_reports_sales_overview_order_totals', $wpdb->get_row( "

SELECT SUM(meta.meta_value) AS total_sales, COUNT(posts.ID) AS total_orders FROM {$wpdb->posts} AS posts

LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id

WHERE meta.meta_key = '_order_total'

AND posts.post_type = 'shop_order'

AND meta.meta_value = 'ppec_paypal'

  AND posts.post_status IN ( '" . implode( "','", array( 'wc-processing','wc-on-hold' ) ) . "' )

" ) );

return absint( $order_totalpp->total_sales);

  echo $order_totalpp;

}

我有下面的代码字符串用于仅基于状态的订单，但是当我尝试通过添加以下行来过滤付款方式时： “ AND meta.meta_value _payment_method ='ppec_paypal'” 它不起作用，得到一个“ 0”值。我猜我的代码中有语法错误。

Answer 1

对于左联接，您不应在where子句中使用与左联接表相关的列（这种方式可作为内部联接）但您应将此条件添加到相关的ON子句

SELECT SUM(meta.meta_value) AS total_sales, COUNT(posts.ID) AS total_orders 
FROM {$wpdb->posts} AS posts
LEFT JOIN {$wpdb->postmeta} AS meta ON posts.ID = meta.post_id 
    AND  meta.meta_key = '_order_total'
        AND meta.meta_value = 'ppec_paypal'
WHERE  posts.post_type = 'shop_order'
AND posts.post_status IN ( '" . implode( "','", array( 'wc-processing','wc-on-hold' ) ) . "' )

是否可以按特定的元键值过滤结果？

1 个答案: