Checkout中的WooCommerce自定义字段

Question

我想在WooCommerce结账页面中添加自定义字段，但针对选定的产品。

例如，如果客户的购物车中只有产品A，则此自定义字段应出现在WooCommerce结账页面中

我在functions.php中使用以下代码添加自定义字段：

add_action('woocommerce_before_order_notes', 'my_delivery_checkout_field');
function my_delivery_checkout_field( $checkout ) {
echo '<div id="my_local_club"><h3>'.__('Delivery Options').'</h3>';
woocommerce_form_field( 'delivery_options', array(
'type' => 'select',
'class' => array('my-club-class form-row-wide'),
'label' => _('<br><br>Please select your options', 'woocommerce'),
'required' => true,
'placeholder' => _x('Please Select An Option...', 'placeholder','woocommerce'),
'options' => array(
'option1' => 'Option 1',
'option_2' =>'Option 2',
 'option_3' =>'Option 3'
)
), $checkout->get_value( 'delivery_options' ));
echo '</div>';
}

Answer 1

由于StackOverFlow.com ，以下代码解决了我的问题

/**
* Add the field to the checkout
**/
add_action('woocommerce_before_order_notes', 'my_delivery_checkout_field');
function my_delivery_checkout_field( $checkout ) {
    //Check if gift card is in cart
    $book_in_cart = conditional_product_in_cart( 7267 );
if ( $book_in_cart === true ) {
echo '<div id="my_local_club"><h3>'.__('Delivery Options').'</h3>';
woocommerce_form_field( 'delivery_options', array(
'type' => 'select',
'class' => array('my-club-class form-row-wide'),
'label' => _('<br><br>Please select your options', 'woocommerce'),
'required' => true,
'placeholder' => _x('Please Select An Option...', 'placeholder','woocommerce'),
'options' => array(
'option1' => 'Option 1',
'option_2' =>'Option 2',
 'option_3' =>'Option 3'
)
), $checkout->get_value( 'delivery_options' ));
echo '</div>';
}
}


// Check if Gift card is in the cart
function conditional_product_in_cart( $product_id ) {
 //Check to see if user has product in cart
 global $woocommerce;
 //flag no book in cart
 $book_in_cart = false;
 foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {
 $_product = $values['data'];
 if ( $_product->id === $product_id ) {
 //book is in cart!
 $book_in_cart = true;
 }
 }
 return $book_in_cart;
}