Get product total sales based on order status in WooCommerce - sql

Question

I use product meta total_sales to display the total sales of a product, on the single product page in WooCommerce:
add_action( 'woocommerce_single_product_summary', 'wc_product_sold_count', 11 );
function wc_product_sold_count() {
global $product;
$units_sold = get_post_meta( $product->get_id(), 'total_sales', true );
echo '<p>' . sprintf( __( 'Units Sold: %s', 'woocommerce' ), $units_sold ) . '</p>';
}
But when some orders are canceled, the total sales are not automatically decreased. So, how can I get the total sales based on order status in WooCommerce?

Answer 1

To obtain the total sales, based on order statuses, you will have to use a custom function:
function get_product_total_sales_by_order_status( $product_id, $order_statuses ) {
global $wpdb;
return $wpdb->get_var( $wpdb->prepare("
SELECT SUM( opl.product_qty )
FROM {$wpdb->prefix}wc_order_product_lookup as opl
INNER JOIN {$wpdb->prefix}posts as p
ON opl.order_id = p.ID
AND p.post_status IN ( 'wc-" . implode( "', 'wc-", $order_statuses ) . "' )
AND opl.product_id = %d
", $product_id ) );
}
Which can then be used as:
// Set the product ID
$p_id = 30;
// Set the orders statuses (without wc-)
$statuses = array( 'on-hold', 'processing', 'completed' );
// Call function, display result
echo get_product_total_sales_by_order_status( $p_id, $statuses );
Or in your specific case:
function action_woocommerce_single_product_summary() {
global $product;
// Is a WC product
if ( is_a( $product, 'WC_Product' ) ) {
// Set the orders statuses (without wc-)
$statuses = array( 'completed' );
// Call function
$total_sales = get_product_total_sales_by_order_status( $product->get_id(), $statuses );
// Display result
if ( $total_sales >= 1 ) {
echo sprintf( __( 'Total sales: %d', 'woocommerce' ), $total_sales );
} else {
echo __( 'N/A', 'woocommerce' );
}
}
}
add_action( 'woocommerce_single_product_summary', 'action_woocommerce_single_product_summary', 11 );