WordPress WooCommerce Interfax отправляет факс с пропущенным полем

Я не php-программист, и мне нужно всегда, чтобы понять, почему. Так что надеюсь, что ТАК может помочь мне. По сути, я установил плагин woocommerce под названием interfax-woocommerce, который используется для отправки электронного письма о завершении заказа на номер факса. В документации сказано, что плагин использует шаблон завершения заказа для отправки факса. Он включает в себя все, что есть в шаблоне электронного письма, за исключением того, что поле для примечания о заказе не заполнено. Я считаю, что это как-то связано с плагином. может быть, он проходит массив заказов без включения этого конкретного поля примечания к заказу? Я не могу понять, почему и как это исправить. Ниже приведен исходный код плагина Интерфакс

if ( ! defined( 'ABSPATH' ) ) exit;

class WooCommerce_InterFax_Integration {
private $dir;
private $file;
private $assets_dir;
private $assets_url;
private $settings;
private $interfax_class;
private $username;
private $password;
private $store_fax_number;
private $template_html;
private $heading;
private $send_store_fax;
private $order;
private $fax_number;

public function __construct( $file ) {
$this->dir = dirname( $file );
$this->file = $file;
$this->assets_dir = trailingslashit( $this->dir ) . 'assets';
$this->assets_url = esc_url( trailingslashit( plugins_url( '/assets/', $file ) ) );

// Add settings link to plugin page
add_filter( 'plugin_action_links_' . plugin_basename( $this->file ), array( $this, 'add_settings_link' ) );

// Get integration settings
$this->settings = get_option( 'woocommerce_interfax_settings' );

// Only handle actions if integration is enabled
if( $this->settings['wcif_enable'] == 'yes' ) {
$this->interfax_class = 'http://ws.interfax.net/dfs.asmx?wsdl';
$this->username = $this->settings['wcif_username'];
$this->password = $this->settings['wcif_password'];
$this->store_fax_number = $this->settings['wcif_fax_number'];
$this->template_html = 'emails/customer-completed-order.php';
$this->heading = __( 'Your order is complete', 'woocommerce' );
$this->send_store_fax = true;

// Add fax number field to checkout
add_filter( 'woocommerce_checkout_fields', array( $this, 'add_checkout_field' ) );

// Send fax on selected order status (deault to 'completed' if no status is selected)
if( $this->settings['wcif_fax_status'] ) {
$fax_status = $this->settings['wcif_fax_status'];
} else {
$fax_status = 'completed';
}
add_action( 'woocommerce_order_status_' . $fax_status, array( $this, 'trigger' ) );

// Add order action to dashboard
add_filter( 'woocommerce_order_actions', array( $this, 'add_order_action' ) );

// Handle order actions
add_action( 'woocommerce_order_action_send_customer_fax', array( $this, 'process_order_action_customer' ) );
add_action( 'woocommerce_order_action_send_store_fax', array( $this, 'process_order_action_store' ) );

// Add fax number field to user profile page in WP dashboard
add_filter( 'woocommerce_customer_meta_fields', array( $this, 'add_user_meta_field' ) );

// Add fax number field to edit billing address page
add_filter( 'woocommerce_billing_fields', array( $this, 'add_address_field' ), 10, 2 );
}

// Handle localisation
$this->load_plugin_textdomain();
add_action( 'init', array( $this, 'load_localisation' ), 0 );

}

public function trigger( $order_id ) {
if ( $order_id ) {
$this->order = new WC_Order( $order_id );

// Send fax to store owner
if( $this->store_fax_number && strlen( $this->store_fax_number ) > 0 ) {
$this->send_store_fax();
}

// Send fax to customer
$this->fax_number = get_post_meta( $order_id, '_billing_fax', true );
if( $this->fax_number && strlen( $this->fax_number ) > 0 ) {
$this->send_customer_fax();
}
}
}

private function send_customer_fax() {
$interfax_client = new SoapClient( $this->interfax_class );

$params->Username  = $this->username;
$params->Password  = $this->password;
$params->FaxNumber = $this->fax_number;
$params->Data      = $this->get_fax_content();
$params->FileType  = 'HTML';

$result = $interfax_client->SendCharFax( $params );

if( isset( $result->SendCharFaxResult ) && $result->SendCharFaxResult > 0 ) {
return true;
}

return false;
}

private function send_store_fax() {
$interfax_client = new SoapClient( $this->interfax_class );

$params->Username  = $this->username;
$params->Password  = $this->password;
$params->FaxNumber = $this->store_fax_number;
$params->Data      = $this->get_fax_content();
$params->FileType  = 'HTML';

$result = $interfax_client->SendCharFax( $params );

if( isset( $result->SendCharFaxResult ) && $result->SendCharFaxResult > 0 ) {
return true;
}

return false;
}

public function get_fax_content() {
global $woocommerce;

ob_start();

$template_data = array(
'order'         => $this->order,
'email_heading' => $this->heading
);

if( version_compare( $woocommerce->version, '2.1-beta-1', ">=" ) ) {
wc_get_template( $this->template_html, $template_data );
} else {
woocommerce_get_template( $this->template_html, $template_data );
}

return ob_get_clean();
}

public function add_checkout_field( $fields ) {

$fields['billing']['billing_fax'] = array(
'label'             => __( 'Fax Number (including country code)', 'wc_interfax' ),
'placeholder'       => _x( 'e.g. +27861234567', 'placeholder', 'wc_interfax' ),
'required'          => false,
'class'             => array( 'form-row' ),
'clear'             => false
);

return $fields;

}

public function add_order_action( $actions ) {
$actions['send_customer_fax'] = 'Send customer fax';
$actions['send_store_fax']    = 'Send store fax';
return $actions;
}

public function process_order_action_customer( $order ) {
$this->fax_number = get_post_meta( $order->id, '_billing_fax', true );
if( $this->fax_number && strlen( $this->fax_number ) > 0 ) {
$this->order = $order;
$this->send_customer_fax();
}
}

public function process_order_action_store( $order ) {
if( $this->store_fax_number && strlen( $this->store_fax_number ) > 0 ) {
$this->order = $order;
$this->send_store_fax();
}
}

public function add_user_meta_field( $fields ) {

$fields['billing']['fields']['billing_fax'] = array(
'label' => __( 'Fax number', 'wc_interfax' ),
'description' => ''
);

return $fields;

}

public function add_address_field( $fields, $country ) {

$fields['billing_fax'] = array(
'label'         => __( 'Fax Number (including country code)', 'wc_interfax' ),
'placeholder'   => _x( 'e.g. +27861234567', 'placeholder', 'wc_interfax' ),
'required'      => false,
'class'         => array( 'form-row' ),
'clear'         => true
);

return $fields;
}

public function add_settings_link( $links ) {
$settings_link = '<a href="admin.php?page=woocommerce&tab=integration&section=interfax">' . __( 'Configure', 'wc_interfax' ) . '</a>';
array_unshift( $links, $settings_link );
return $links;
}

public function load_localisation () {
load_plugin_textdomain( 'wc_interfax' , false , dirname( plugin_basename( $this->file ) ) . '/lang/' );
}

public function load_plugin_textdomain () {
$domain = 'wc_interfax';
$locale = apply_filters( 'plugin_locale' , get_locale() , $domain );

load_textdomain( $domain , WP_LANG_DIR . '/' . $domain . '/' . $domain . '-' . $locale . '.mo' );
load_plugin_textdomain( $domain , FALSE , dirname( plugin_basename( $this->file ) ) . '/lang/' );
}