php - 将 WooCommerce 订单总量保存为 Shipstation 的自定义字段

Question

我一直在编写一个 WP 插件，用于计算订单的平方英寸总体积，并通过自定义字段将其发送到 Shipstation:

<?php
   

  global $woocommerce;
  $items = $woocommerce->cart->get_cart();

  //Debugging function
  function console_log( $data ){
    echo '<script>';
    echo 'console.log('. json_encode( $data ) .')';
    echo '</script>';
  }
  console_log('$items');
  //Custoom field for shipstation
  add_filter( 'woocommerce_shipstation_export_custom_field_2', 'shipstation_custom_field_2' );

  //Function for processing volume
  function shipstation_custom_field_2() {
    $cart_prods_in3 = array();
    foreach($items as $item => $values) { 
        $_product =  wc_get_product( $values['data']->get_id());
        //GET GET PRODUCT IN3 
        $prod_in3 = $_product->get_length() * 
                   $_product->get_width() * 
                   $_product->get_height();
        $prod_in3 = $prod_m3 * $values['quantity'];
        //PUSH RESULT TO ARRAY
        array_push($cart_prods_in3, $prod_in3);
    } 
    return $cart_prods_in3; // Key for your custom field
}

console_log('shipstation_custom_field_2');

?>

我通过 SFTP 将其上传到站点文件，它显示在 WP 上，但是当我单击“激活”时，出现 fatal error :

Fatal error: Uncaught Error: Call to a member function get_cart() on null in /nas/content/live/sfmstaging/wp-content/plugins/boxCalc/boxCalc.php:10 Stack trace: #0 /nas/content/live/sfmstaging/wp-admin/includes/plugin.php(2299): include() #1 /nas/content/live/sfmstaging/wp-admin/plugins.php(191): plugin_sandbox_scrape('boxCalc/boxCalc...') #2 {main} thrown in /nas/content/live/sfmstaging/wp-content/plugins/boxCalc/boxCalc.php on line 10

我提取的购物车数据正确吗？ Woocommerce 全局有问题吗？

Answer 1

请注意，购物车是实时客户对象，您无法在实际操作中获得它。

现在在ShipStation plugin documentation woocommerce_shipstation_export_custom_field_2 过滤器 Hook 只是返回现有订单自定义字段的元键。

这意味着当客户下订单时，您需要将购物车总量保存为自定义订单元数据。

请尝试以下操作:

// Custom function to get the volume of a product
function get_product_volume( $product ) {
    return $product->get_length() * $product->get_width() * $product->get_height();
}

// Save the cart total volume as custom order meta data
add_action('woocommerce_checkout_create_order', 'save_order_total_volume');
function save_order_total_volume( $order ) {
    $total_volume = 0; // Initializing

    // Loop through order items
    foreach( $order->get_items() as $item ){
        $item_volume   = get_product_volume($item->get_product()) * $item->get_quantity();

        // For product variations (if volume is not accessible get the volume of the parent variabl product)
        if( ! $item_volume ) {
            $total_volume += get_product_volume( wc_get_product( $item->get_product_id() ) ) * $item->get_quantity();
        } else {
            $total_volume += $item_volume;
        }
    }
    $order->update_meta_data( '_total_volume', $total_volume ); // Save total volume as custom order meta data
}

// Add total volume custom field meta key for export to ship station
add_filter( 'woocommerce_shipstation_export_custom_field_2', 'shipstation_custom_field_2' );
function shipstation_custom_field_2( $custom_field_key ) {
    return '_total_volume';
}

代码位于事件子主题(或事件主题)的functions.php 文件或插件文件中。经过测试并有效。