在WooCommerce电子邮件通知中显示产品自定义字段

问题描述

所以当我在mytheme / functions.PHP文件中编写此代码时，这就是交易

//this code for adding field in product backend
// display Fields
add_action('woocommerce_product_options_general_product_data','woocommerce_product_custom_fields1');
// Save Fields
add_action('woocommerce_process_product_Meta','woocommerce_product_custom_fields_save');
function woocommerce_product_custom_fields1()
{
    global $woocommerce,$post;
    echo '<div class="product_custom_field">';
    // Custom Product Text Field
    woocommerce_wp_text_input(array(
        'id' => '_custom_product_text_field','placeholder' => 'Custom Product Text Field','label' => __('Zoom Meeting Url ','woocommerce'),'desc_tip' => 'true'
    ));
    //Custom Product Number Field
    woocommerce_wp_text_input(array(
        'id' => '_custom_product_number_field','label' => __('Meeting ID','type' => 'text','custom_attributes' => array(
            // 'step' => 'any',// 'min' => '0'
        )
    ));
    //Custom Product  Textarea
    woocommerce_wp_textarea_input(array(
        'id' => '_custom_product_textarea','placeholder' => 'Custom Product Text','label' => __('Password','woocommerce')
    ));
    echo '</div>';
}
function woocommerce_product_custom_fields_save($post_id)
{
    // Custom Product Text Field
    $woocommerce_custom_product_text_field = $_POST['_custom_product_text_field'];
    if (!empty($woocommerce_custom_product_text_field))
        update_post_Meta($post_id,'_custom_product_text_field',esc_attr($woocommerce_custom_product_text_field));
    // Custom Product Number Field
    $woocommerce_custom_product_number_field = $_POST['_custom_product_number_field'];
    if (!empty($woocommerce_custom_product_number_field))
        update_post_Meta($post_id,'_custom_product_number_field',esc_attr($woocommerce_custom_product_number_field));
    // Custom Product Textarea Field
    $woocommerce_custom_procut_textarea = $_POST['_custom_product_textarea'];
    if (!empty($woocommerce_custom_procut_textarea))
        update_post_Meta($post_id,'_custom_product_textarea',esc_html($woocommerce_custom_procut_textarea));
}

add_action( 'woocommerce_email_after_order_table','wdm_add_shipping_method_to_order_email',10,2 );
function wdm_add_shipping_method_to_order_email( $order,$is_admin_email ) {
    echo '<h4>Zoom Meeting Details</h4>';
    $order_id = $order->get_id();
    $order = wc_get_order( $order_id ); //returns WC_Order if valid order 
    $items = $order->get_items();   //returns an array of WC_Order_item or a child class (i.e. WC_Order_Item_Product)
    foreach( $items as $item ) {
    $type = $item->get_type();
    $product_id = $item->get_product_id();
    echo "<p>" . get_the_title($product_id) . "</p>";
    echo "<p><strong>Zoom Meeting Url:</strong>" . get_post_meta($product_id,true) . "</p>";
    echo "<p><strong>Meeting ID:</strong>" . get_post_meta($product_id,true) . "</p>";
    echo "<p><strong>Password:</strong>" . get_post_meta($product_id,true) . "</p>";


    //more code
}
}
echo get_post_meta($id,true);
echo get_post_meta($id,true);

它仅在后端工作（产品编辑页面） 它保存了变量，但不显示在Meta中或在添加到卡片按钮之前或之后-或之后都没有显示
我尝试了回声，但仍然没有结果

所以我以为我是我的主题？不 我在其他vps上安装了wordpress，但仍然没有显示文本字段-text-nothing

如果您知道该问题，请告诉我我做错了什么！ 谢谢

解决方法

此代码自WooCommerce 3起有点过时了。您还使用了textarea字段作为密码，而应该是一个简单的文本输入字段。

我已经完全重新考虑了您的代码：

// Custom function that handle your custom fields settings
function product_custom_fields_settings(){
    // Fieds Id key | Field label name (pairs)
    return array(
        'zoom_meeting_url'  => __('Meeting Url','woocommerce'),'zoom_meeting_id'   => __('Meeting Id','zoom_password'     => __('Meeting password',);
}


add_action('woocommerce_product_options_general_product_data','display_product_custom_fields');
function display_product_custom_fields(){
    echo '<div class="product_custom_field">';

    // Loop through settings Fieds Id key | Field label name (pairs)
    foreach ( product_custom_fields_settings() as $key => $label ) {
        // Input text fields
        woocommerce_wp_text_input(array(
            'id' => '_'.$key,'label' => $label,));
    }

    echo '</div>';
}

add_action('woocommerce_admin_process_product_object','save_product_custom_fields');
function save_product_custom_fields( $product ){
    foreach ( product_custom_fields_settings() as $key => $label ) {
        if ( isset($_POST['_'.$key]) ) {
            $product->update_meta_data( '_'.$key,sanitize_text_field( $_POST['_'.$key] ) );
        }
    }
}

add_action( 'woocommerce_email_after_order_table','product_custom_fields_to_email_notification',10,4 );
function product_custom_fields_to_email_notification( $order,$sent_to_admin,$plain_text,$email ) {
     // The HTML Structure
    $html_output = '<h3>'.__('Zoom meeting Details','woocommerce').'</h3>
    <div class="meeting-info"><table cellspacing="0" cellpadding="6"><tbody>';

    // Loop through order items
    foreach( $order->get_items() as $item ) {
        $product = $item->get_product();

        $html_output .= '<tr><th colspan="2">'.$item->get_name().'</th></tr>'; // Product name

        // Loop through settings Fieds Id key | Field label name (pairs)
        foreach ( product_custom_fields_settings() as $key => $label ) {
            if( $value = $product->get_meta('_'.$key) ) {
                $html_output .= '<tr><th>'.$label.':</th><td>'.$value.'</td></tr>';
            }
        }

        // … More code …
    }

    // The CSS styling
    $styles = '<style>
    .meeting-info table{width: 100%; font-family: \'Helvetica Neue\',Helvetica,Roboto,Arial,sans-serif;
        color: #737373; border: 1px solid #e4e4e4; margin-bottom:8px;}
    .meeting-info table th,table.teilnehmer-info td{text-align: left; border-top-width: 4px;
        color: #737373; border: 1px solid #e4e4e4; padding: 12px;}
    .meeting-info table td{text-align: left; border-top-width: 4px; color: #737373;
        border: 1px solid #e4e4e4; padding: 12px; word-break: break-all;}
    .meeting-info table tr.subtitle h3{margin: 0;}
    </style>';

    // The Output CSS + HTML
    echo $styles . $html_output . '</tbody></table></div><br>';
}

代码进入活动子主题（或活动主题）的functions.php文件中。经过测试，可以正常工作。