Get all Orders IDs from a product ID in Woocommerce

Question

How can I get an array with Order IDs by Product ID?

I mean receive all orders where specific product is presented.

I know how to do this by MySQL, but is t

Answer 1

I'd like to note that the above answer will return a duplicate of the order_id if the order has multiple items in it.

E.g.

If there was a product called "apples" with product_id=>1036

Customer puts "apples" 3 times in their cart and purchases it, creating order_id=>555

If I query product_id->1036, I will get array(555,555,555).

There's probably an SQL way of doing this which may be faster, (would appreciate anyone that could add to this), otherwise I used: array_unqiue() to merge the duplicates.

function retrieve_orders_ids_from_a_product_id( $product_id )
{
    global $wpdb;

    $table_posts = $wpdb->prefix . "posts";
    $table_items = $wpdb->prefix . "woocommerce_order_items";
    $table_itemmeta = $wpdb->prefix . "woocommerce_order_itemmeta";

    // Define HERE the orders status to include in  <==  <==  <==  <==  <==  <==  <==
    $orders_statuses = "'wc-completed', 'wc-processing', 'wc-on-hold'";

    # Requesting All defined statuses Orders IDs for a defined product ID
    $orders_ids = $wpdb->get_col( "
        SELECT $table_items.order_id
        FROM $table_itemmeta, $table_items, $table_posts
        WHERE  $table_items.order_item_id = $table_itemmeta.order_item_id
        AND $table_items.order_id = $table_posts.ID
        AND $table_posts.post_status IN ( $orders_statuses )
        AND $table_itemmeta.meta_key LIKE '_product_id'
        AND $table_itemmeta.meta_value LIKE '$product_id'
        ORDER BY $table_items.order_item_id DESC"
    );
    // return an array of Orders IDs for the given product ID
    $orders_ids = array_unique($orders_ids);
    return $orders_ids;
}