Woocommerce 如何从订单对象中获取元值

Question

我正在尝试从 wc_order 获取自定义元数据字段。我必须澄清一下，我不是 php 的专业人士，我尝试了很多方法来获取字段，其中：

get_meta()
get_meta_data()
get_post_meta( $order_id )
等等...

但是其中 none 有效。我有这个订单 object:

我正在尝试获取以下 user_instagram 值：order > meta_data[3] > current_data > value

有人知道获取方法吗？

编辑

我正在尝试添加 lty_user_instagram 字段。这是负责做这件事的函数。

public static function create_ticket_on_placing_order( $order_id, $product_id = false ) {

  if ( get_post_meta( $order_id , 'lty_lottery_ticket_created_once' , true ) ) {
    return ;
  }

  $order = wc_get_order( $order_id ) ;

  if ( ! is_object( $order ) ) {
    return ;
  }

  $user_id = $order->get_user_id() ;
  if ( ! $user_id ) {
    return ;
  }

  $user = get_user_by( 'ID' , $user_id ) ;

  if ( ! $user->exists() ) {
    return ;
  }

  $currency   = $order->get_currency() ;
  $ip_address = ! empty( $order->get_customer_ip_address() ) ? $order->get_customer_ip_address() : lty_get_ip_address() ;

  $ticket_ids = array() ;

  foreach ( $order->get_items() as $item ) {
    $product = $item->get_product() ;
    if ( ! is_object( $product ) || 'lottery' != $product->get_type() || ! $product->has_lottery_status( 'lty_lottery_started' ) ) {
      continue ;
    }

    // Validate product id.
    if ( $product_id && $product->get_id() != $product_id ) {
      continue ;
    }

    $answer          = '' ;
    $answers         = array() ;
    $is_valid_answer = 'no' ;

    if ( isset( $item[ 'lty_lottery_answers' ][ 0 ] ) ) {
      $question_answers = $product->get_answers() ;
      if ( array_key_exists( $item[ 'lty_lottery_answers' ][ 0 ] , $question_answers ) ) {
        $answer  = $question_answers[ $item[ 'lty_lottery_answers' ][ 0 ] ][ 'label' ] ;
        $answers = array(
          'label' => $question_answers[ $item[ 'lty_lottery_answers' ][ 0 ] ][ 'label' ] ,
          'key'   => $item[ 'lty_lottery' ][ 'answers' ] ,
          'valid' => $question_answers[ $item[ 'lty_lottery_answers' ][ 0 ] ][ 'valid' ]
            ) ;

        $is_valid_answer = $question_answers[ $item[ 'lty_lottery_answers' ][ 0 ] ][ 'valid' ] ;
      }
    }

    $args = array(
      'lty_user_id'      => $user->ID ,
      'lty_user_instagram' => "Here is where I want to ser order's user_instagram" ,
      'lty_product_id'   => $product->get_id() ,
      'lty_amount'       => $product->get_price() ,
      'lty_user_name'    => $user->user_login ,
      'lty_user_email'   => $user->user_email ,
      'lty_currency'     => $currency ,
      'lty_order_id'     => $order_id ,
      'lty_answer'       => $answer ,
      'lty_answers'      => $answers ,
      'lty_valid_answer' => $is_valid_answer ,
      'lty_ip_address'   => $ip_address ,
        ) ;
            
    $ticket_numbers = $product->get_ticket_numbers($item);
    if ( ! lty_check_is_array( $ticket_numbers ) ) {
      continue ;
    }

    foreach ( $ticket_numbers as $ticket_number ) {

      $args[ 'lty_ticket_number' ] = $ticket_number ;
      $ticket_ids[]                = lty_create_new_lottery_ticket( $args , array( 'post_parent' => $product->get_lottery_id() , 'post_status' => 'lty_ticket_pending' ) ) ;
    }
            
    if ( ! $product->is_manual_ticket() ) {
      // Update order item meta for automatic type.
      $item->add_meta_data( '_lty_lottery_tickets' , $ticket_numbers ) ;
      $item->add_meta_data( esc_html__( 'Ticket Number( s )' , 'lottery-for-woocommerce' ) , implode( ' , ' , $ticket_numbers ) ) ;
      $item->save() ;
    }

    //Unset metas on placing order.
    self::unset_metas_on_placing_order( $product , $order , $ticket_numbers ) ;
  }

  if ( lty_check_is_array( $ticket_ids ) ) {
    // Update custom order meta for ticket ids.
    update_post_meta( $order_id , 'lty_ticket_ids_in_order' , $ticket_ids ) ;
    update_post_meta( $order_id , 'lty_lottery_ticket_created_once' , '1' ) ;
  }
}

我要编辑的插件是 Lottery for Woocommerce by FantasticPlugins (class -lty-order-handler.php)

Answer 1

The following solutions have been fully tested on wordpress 5.8 and woocommerce 5+.

They're recommended, if you use update_post_meta to store your metadata as part of the order object.

Please keep in mind, if you're using third party plugins that store the metadata for you, then you may encounter discrepancies.

您可以使用以下方式获取您的元数据：

$order_id = 12345;

$order = wc_get_order($order_id);

1- 使用 $order->get_meta():

echo "<pre>";
print_r($order->get_meta('user_instagram'));
echo "</pre>";

2- 使用 get_post_meta():

echo "<pre>";
echo get_post_meta($order->get_id(), 'user_instagram', true);
echo "</pre>";

3-使用 get_post_meta($order_id):

echo "<pre>";
print_r(get_post_meta($order_id)['user_instagram'][0]);
echo "</pre>";

4- 使用 $order->get_meta_data():

echo "<pre>";
foreach ($order->get_meta_data() as $object) {
  $object_array = array_values((array)$object);
  foreach ($object_array as $object_item) {
    if ('user_instagram' == $object_item['key']) {
      print_r($object_item['value']);
      break;
    }
  }
}
echo "</pre>";

Woocommerce 如何从订单对象中获取元值

Woocommerce how to get meta value from the order object

php

wordpress

woocommerce

post-meta

woocommerce-theming

编辑

The following solutions have been fully tested on wordpress `5.8` and woocommerce `5+`.

They're recommended, if you use `update_post_meta` to store your metadata as part of the order object.

Woocommerce 如何从订单对象中获取元值

Woocommerce how to get meta value from the order object

php

wordpress

woocommerce

post-meta

woocommerce-theming

编辑

The following solutions have been fully tested on wordpress 5.8 and woocommerce 5+.

They're recommended, if you use update_post_meta to store your metadata as part of the order object.

The following solutions have been fully tested on wordpress `5.8` and woocommerce `5+`.

They're recommended, if you use `update_post_meta` to store your metadata as part of the order object.