将产品自定义字段值保存为WooCommerce中的自定义订单项元

问题描述

我对woocommerce（最新版本）中的自定义字段有疑问。我需要你的帮助。

我的代码

function completed_order($order_id) {
    $order = wc_get_order( $order_id );
    $customer_id = $order->get_customer_id();
    $user = get_user_by('id',$customer_id);

    foreach ( $order->get_items() as $item_id => $item ) {
        $validity = $item->get_Meta( 'validity_field' );

        if($validity) {
            $a = get_post_meta($item->get_id(),'validity_field',true);
        }        
    } 
}
add_action('woocommerce_order_status_completed','completed_order',10,1);


function create_custom_field() {
    $args = array(
        'id' => 'validity_field','label' => __( 'Ważność konta','waznosc' ),'class' => 'waznosc-custom-field','desc_tip' => true,'description' => __( 'Wprowadz ilosc dni waznosci konta',);
    woocommerce_wp_text_input( $args );
}
add_action( 'woocommerce_product_options_general_product_data','create_custom_field' );

function save_custom_field( $post_id ) {
    $product = wc_get_product( $post_id );
    $title = isset( $_POST['validity_field'] ) ? $_POST['validity_field'] : '';
    $product->update_Meta_data( 'validity_field',sanitize_text_field( $title ) );
    $product->save();
}
add_action( 'woocommerce_process_product_Meta','save_custom_field' );

function add_custom_data_to_order( $item,$cart_item_key,$values,$order ) {
    foreach( $item as $cart_item_key=>$values ) {
        if( isset( $values['title_field'] ) ) {
            $item->add_Meta_data( __( 'Waznosc konta',$values['validity_field'],true );
        }
    }
}
add_action( 'woocommerce_checkout_create_order_line_item','add_custom_data_to_order',4 );

现在，我无法从自定义字段validity_field获取数据。 字段已保存到数据库，因为在我编辑产品时值在字段中，但完成订单后我无法将其挂接:( 我尝试使用get_post_meta，get_Meta和其他方法，但没有任何效果。 有人知道原因吗？

解决方法

您的代码中有一些错误。请尝试以下操作：

add_action( 'woocommerce_product_options_general_product_data','add_admin_product_custom_field' );
function add_admin_product_custom_field() {
    woocommerce_wp_text_input( array(
        'id' => 'validity_field','label' => __( 'Ważność konta','waznosc' ),'class' => 'waznosc-custom-field','desc_tip' => true,'description' => __( 'Wprowadz ilosc dni waznosci konta',) );
}

add_action( 'woocommerce_admin_process_product_object','save_product_custom_field_value' );
function save_product_custom_field_value( $product ) {
    $value = isset( $_POST['validity_field'] ) ? sanitize_text_field($_POST['validity_field']) : '';
    $product->update_meta_data( 'validity_field',$value );
}

add_action( 'woocommerce_checkout_create_order_line_item','add_custom_data_to_order_item',10,4 );
function add_custom_data_to_order( $item,$cart_item_key,$values,$order ) {
    $product = wc_get_product( $item->get_product_id() ); // The WC_Product Object (and the parent variable product object for product variations)
    $value   = $product->get_meta('validity_field');
    
    if( ! empty( $value ) ) {
        $item->update_meta_data( __( 'Waznosc konta',$value );
    }
}

add_action( 'woocommerce_order_status_completed','action_completed_order',2 );
function action_completed_order( $order_id,$order ) {
    $user_id = $order->get_customer_id();
    $user    = $order->get_user(); // The WP_User Object (if needed)

    foreach ( $order->get_items() as $item_id => $item ) {
        $validity = $item->get_meta( 'validity_field' );
        
        if ( ! empty($validity) ) {
            // Do something with $validity
        }
    } 
}

这次应该可以了。