Save multiple datas in order WooCommerce - woocommerce

Question

I have two customs fields in my product (image and texte), I all ready show it in the cart but when the order is complete, i can't find how can I show both in the admin order (I can show one of two ^^)
Here is the code :
// Add custom fields data as the cart item custom data
add_filter( 'woocommerce_add_cart_item_data', 'add_custom_fields_data_as_custom_cart_item_data', 10, 2 );
function add_custom_fields_data_as_custom_cart_item_data($cart_item, $product_id){
if( isset($_FILES['image']) && !empty($_FILES['image']) && !empty($_POST['nom_pp']) ) {
$upload = wp_upload_bits( $_FILES['image']['name'], null, file_get_contents( $_FILES['image']['tmp_name'] ) );
$filetype = wp_check_filetype( basename( $upload['file'] ), null );
$upload_dir = wp_upload_dir();
$upl_base_url = is_ssl() ? str_replace('http://', 'https://', $upload_dir['baseurl']) : $upload_dir['baseurl'];
$base_name = basename( $upload['file'] );
$cart_item['file_upload'] = array(
'guid' => $upl_base_url .'/'. _wp_relative_upload_path( $upload['file'] ), // Url
'file_type' => $filetype['type'], // File type
'file_name' => $base_name, // File name
'title' => ucfirst( preg_replace('/\.[^.]+$/', '', $base_name ) ), // Title
);
$cart_item['nom_pp'] = $_POST['nom_pp'];
$cart_item['unique_key'] = md5( microtime().rand() ); // Avoid merging items
}
return $cart_item;
}
// Display custom cart item data in cart (optional)
add_filter('woocommerce_get_item_data', 'njengah_custom_item_data', 10, 2);
function njengah_custom_item_data($cart_item_data, $cart_item) {
if ( isset($cart_item['file_upload']['title']) ){
$cart_item_data[] = array(
'name' => __( 'Mon image ', 'woocommerce' ),
'value' => str_pad($cart_item['file_upload']['title'], 16, 'X', STR_PAD_LEFT) . '…',
);
}
if ( isset($cart_item['nom_pp']) ){
$cart_item_data[] = array(
'name' => __( 'Nom du papier peint ', 'woocommerce' ),
'value' => $cart_item['nom_pp'],
);
}
return $cart_item_data;
}
// Save Image data as order item meta data
add_action( 'woocommerce_checkout_create_order_line_item', 'njengah_field_update_order_item_meta', 20, 4 );
function njengah_field_update_order_item_meta( $item, $cart_item_key, $values, $order ) {
if ( isset($values['file_upload']) && isset($values['nom_pp']) ){
$item->update_meta_data($item, '_img_file', $values['file_upload']);
$item->update_meta_data($item, '_nom_pp', $values['nom_pp']);
}
}
// Admin orders: Display a linked button + the link of the image file
add_action( 'woocommerce_after_order_itemmeta', 'njengah_image_link_after_order_itemmeta', 10, 3 );
function njengah_image_link_after_order_itemmeta( $item_id, $item, $product ) {
// Only in backend for order line items (avoiding errors)
if( is_admin() && $item->is_type('line_item') && $file_data = $item->get_meta('_img_file') && $file_data = $item->get_meta('_nom_pp') ){
echo '<p>'.__("Voir l'image") . '</p>'; // Optional
echo '<p><code>'.$file_data['guid'].'</code></p>'; // Optional
echo '<p>'.$file_data['nom_pp'].'</p>'; // Optional
}
}
I think I need to edit the order meta data, but I don't know how can I do it :)