保存产品自定义字段并将其显示在购物车页面中 [英] Saving a product custom field and displaying it in cart page

问题描述

使用WooCommerce，我正在我的functions.php文件中进行一些自定义，以在购物车页面上获得自定义字段值.

With WooCommerce and I am doing some customization in my functions.php file, to get a custom field value on Cart page.

在添加到购物车之前，我添加了一个自定义字段:

I add a custom field before add to cart:

function add_name_on_tshirt_field() {
  echo '<table class="variations" cellspacing="0">
      <tbody>
          <tr>
          <td class="label"><label for="color">Name On T-Shirt</label></td>
          <td class="value">
              <input type="text" name="name-on-tshirt" value="" />
          </td>
      </tr>                             
      </tbody>
  </table>';
}
add_action( 'woocommerce_before_add_to_cart_button', 'add_name_on_tshirt_field' );

function render_meta_on_cart_item( $title = null, $cart_item = null, $cart_item_key = null ) {
    if( $cart_item_key && is_cart() ) {
        echo $title. '<dl class="">
                 <dt class="">Name On T-Shirt : </dt>
                 <dd class=""><p>'. WC()->session->get( $cart_item_key.'_name_on_tshirt') .'</p></dd>           
              </dl>';
    }else {
        echo $title;
    }

  /*  $d=WC();
    echo "<pre>";
    print_r($d);*/
}
add_filter( 'woocommerce_cart_item_name', 'render_meta_on_cart_item', 1, 3 );


function tshirt_order_meta_handler( $item_id, $values, $cart_item_key ) 
{
    wc_add_order_item_meta( $item_id, "name_on_tshirt", WC()->session->get( $cart_item_key.'_name_on_tshirt') );    
}
add_action( 'woocommerce_add_order_item_meta', 'tshirt_order_meta_handler', 1, 3 );

我想在购物车页面上使用此自定义值，我也使用了钩子

And i want this custom value on cart page i also used hook

add_action( 'woocommerce_before_calculate_totals', 'add_custom_price' );

但是我无法从此自定义字段中获得任何价值.

这怎么可能?我在做什么错了?

谢谢

推荐答案

您的代码中存在很多错误和遗漏

There is a lot of errors and missing things in your code

1)设置:

如果要在客户订单和电子邮件通知上正确显示标签"T恤上的名称" ，则需要为此标签名称创建一个属性(在产品">属性"下):

If you want to display correctly the label "Name On T-Shirt" on customer Orders and email notifications, you need to create an attribute for this label name (under Products > Attributes):

创建产品属性:

为此属性添加一些值:

和…

然后保存...

2)代码:

// Add the custom field to product pages
add_action( 'woocommerce_before_add_to_cart_button', 'add_nmy_custom_product_field', 10, 0 );
function add_nmy_custom_product_field() {
    ?>
        <table class="variations" cellspacing="0">
            <tbody>
                <tr>
                    <td class="label">
                        <label for="color"><?php _e('Name On T-Shirt', 'woocommerce'); ?></label>
                    </td>
                    <td class="value">
                        <input type="text" name="name-on-tshirt" value="" />
                    </td>
                </tr>
            </tbody>
        </table>
    <?php
}

// Save the custom product field data in Cart item
add_filter( 'woocommerce_add_cart_item_data', 'save_in_cart_my_custom_product_field', 10, 2 );
function save_in_cart_my_custom_product_field( $cart_item_data, $product_id ) {
    if( isset( $_POST['name-on-tshirt'] ) ) {
        $cart_item_data[ 'name-on-tshirt' ] = $_POST['name-on-tshirt'];

        // When add to cart action make an unique line item
        $cart_item_data['unique_key'] = md5( microtime().rand() );
        WC()->session->set( 'custom_data', $_POST['name-on-tshirt'] );
    }
    return $cart_item_data;
}

// Render the custom product field in cart and checkout
add_filter( 'woocommerce_get_item_data', 'render_custom_field_meta_on_cart_and_checkout', 10, 2 );
function render_custom_field_meta_on_cart_and_checkout( $cart_data, $cart_item ) {

    $custom_items = array();

    if( !empty( $cart_data ) )
        $custom_items = $cart_data;

    if( $custom_field_value = $cart_item['name-on-tshirt'] )
        $custom_items[] = array(
            'name'      => __( 'Name On T-Shirt', 'woocommerce' ),
            'value'     => $custom_field_value,
            'display'   => $custom_field_value,
        );

    return $custom_items;
}

// Add the the custom product field as item meta data in the order
add_action( 'woocommerce_add_order_item_meta', 'tshirt_order_meta_handler', 10, 3 );
function tshirt_order_meta_handler( $item_id, $cart_item, $cart_item_key ) {
    $custom_field_value = $cart_item['name-on-tshirt'];
    if( ! empty($custom_field_value) )
        wc_update_order_item_meta( $item_id, 'pa_name-on-tshirt', $custom_field_value );
}

此代码会出现在您活动的子主题(或主题)的function.php文件中，也可能会出现在任何插件文件中.

This code goes in function.php file of your active child theme (or theme) or also in any plugin file.

此代码有效，并且已针对WooCommerce版本从2.5到3.0+进行了测试

This code works and is tested for WooCommerce version from 2.5 to 3.0+

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