我只有在拥有指定类别的产品时才需要显示此自定义字段。那么只需要字段。
下面的代码只是设置为显示：无字段，实际上如果我点击结帐时出现错误，例如＆＃34;字段myfield是必需的＆＃34;，但我需要删除我的字段而不是设置显示无。
请知道吗？
我有最新版本的WooCommerce。
这是我的代码：
/**
* Add the field to the checkout
*/
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );
// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
$fields['billing']['my_field_name'] = array(
'label' => __('Codice medico', 'woocommerce'),
'placeholder' => _x('Inserisci il codice del tuo medico', 'placeholder', 'woocommerce'),
'required' => true,
'class' => array('form-row-wide'),
'clear' => true
);
return $fields;
}
/**
* Process the checkout
*/
add_action('woocommerce_checkout_process', 'my_custom_checkout_field_process');
function my_custom_checkout_field_process() {
// Check if set, if its not set add an error.
if ( ! $_POST['my_field_name'] )
wc_add_notice( __( '<h4 style="color:red;">Stai acquistando un prodotto per cui è necessaria la prescrizione medica. Per favore inserisci il codice del tuo medico per proseguire. Grazie.</h4>' ), 'error' );
}
/**
* Update the order meta with field value
*/
add_action( 'woocommerce_checkout_update_order_meta', 'my_custom_checkout_field_update_order_meta' );
function my_custom_checkout_field_update_order_meta( $order_id ) {
if ( ! empty( $_POST['my_field_name'] ) ) {
update_post_meta( $order_id, 'Codice Medico', sanitize_text_field( $_POST['my_field_name'] ) );
}
}
/**
* Display field value on the order edit page
*/
add_action( 'woocommerce_admin_order_data_after_billing_address', 'my_custom_checkout_field_display_admin_order_meta', 10, 1 );
function my_custom_checkout_field_display_admin_order_meta($order){
echo '<p><strong>'.__('Codice Medico').':</strong> ' . get_post_meta( $order->id, 'Codice Medico', true ) . '</p>';
}
/* Adding Custom Fields to Emails
1. Add this snippet to your theme's functions.php file
2. Change the meta key names in the snippet
3. Create a custom field in the order post - e.g. key = "Tracking Code" value = abcdefg
4. When next updating the status, or during any other event which emails the user, they will see this field in their email
*/
add_filter('woocommerce_email_order_meta_keys', 'my_custom_order_meta_keys');
function my_custom_order_meta_keys( $keys ) {
$keys[] = 'Codice Medico'; // This will look for a custom field called 'Tracking Code' and add it to emails
return $keys;
}
/**
* Conditionally remove checkout fields
*/
add_filter( 'woocommerce_checkout_fields' , 'conditional_unset_checkout_field' );
function conditional_unset_checkout_field( $fields ) {
$categories = array( 'prodotti-in-polvere-e-bustine', 'gel-e-creme', 'prodotti-in-capsule', 'prodotti-plantari', 'prodotti-liquidi', 'area-riservata' );
$has_cat = false;
// Iterating through each cart items (products)
foreach(WC()->cart->get_cart() as $cart_item){
// Iterating through each category in your array
foreach($categories as $category){
if ( has_term( $category, 'product_cat', $cart_item['product_id'] ) ) {
$has_cat = true;
break;
}
}
if ( $has_cat ) break;
}
// If one of the categories is in one cart item, we unset the field
if ( $has_cat ) {
unset( $fields['billing']['my_field_name'] );
}
return $fields;
}
答案 0 :(得分：2)
仅当购物车项目中有已定义的类别时才取消设置字段，如果还有其他类别，则取消设置字段。
首先：您在这里使用我的回答的工作代码到您昨天的问题：
Remove a checkout field if cart items are from some specific product categories
你在这里没有提到它。
之后，我已经测试了您的代码（有一些未成年人修改）on this test server，以及它正常工作！如果您添加商店的第一个产品＆＃34; Flying Ninja＆＃34;这是在海报＆＃39;类别，您的自定义结帐字段将根据需要删除...如果您删除＆＃34;飞行忍者＆＃34;从购物车和你添加例如第二产品＆＃34;快乐忍者＆＃34;那不是海报＆＃39;类别，您的自定义字段将再次显示...
这是你轻易改变的代码：
/**
* Add the field to the checkout
*/
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );
// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
$fields['billing']['my_field_name'] = array(
'label' => __('Codice medico', 'woocommerce'),
'placeholder' => _x('Inserisci il codice del tuo medico', 'placeholder', 'woocommerce'),
'required' => true,
'class' => array('form-row-wide'),
'clear' => true
);
return $fields;
}
/**
* Process the checkout
*/
add_action('woocommerce_checkout_process', 'custom_checkout_field_process');
function custom_checkout_field_process() {
// Check if set, if its not set add an error.
if ( ! $_POST['my_field_name'] )
wc_add_notice( __( '<h4 style="color:red;">Stai acquistando un prodotto per cui è necessaria la prescrizione medica. Per favore inserisci il codice del tuo medico per proseguire. Grazie.</h4>' ), 'error' );
}
/**
* Update the order meta with field value
*/
add_action( 'woocommerce_checkout_update_order_meta', 'custom_checkout_field_update_order_meta' );
function custom_checkout_field_update_order_meta( $order_id ) {
$my_field_name = $_POST['my_field_name'];
if ( !empty($my_field_name) )
update_post_meta( $order_id, 'Codice Medico', sanitize_text_field( $my_field_name ) );
}
/**
* Display field value on the order edit page
*/
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_checkout_field_in_admin_order_meta', 10, 1 );
function display_custom_checkout_field_in_admin_order_meta($order){
echo '<p><strong>'.__('Codice Medico').':</strong> ' . get_post_meta( $order->id, 'Codice Medico', true ) . '</p>';
}
/**
* Conditionally remove checkout fields
*/
add_filter( 'woocommerce_checkout_fields' , 'conditional_unset_checkout_field' );
function conditional_unset_checkout_field( $fields ) {
$categories = array( 'prodotti-in-polvere-e-bustine', 'gel-e-creme', 'prodotti-in-capsule', 'prodotti-plantari', 'prodotti-liquidi', 'area-riservata', 'posters' );
$has_cat = false;
$has_other_cat = false;
// Iterating through each cart items (products)
foreach(WC()->cart->get_cart() as $cart_item){
// Getting the item product categories
$item_categories = wp_get_post_terms( $cart_item['product_id'], 'product_cat' );
foreach($item_categories as $item_category){
if(in_array($item_category->slug, $categories))
$has_cat = true;
else
$has_other_cat = true;
}
}
// If one of your defined categories is in the cart item
// and not the others categories, we unset the field
if ( $has_cat && !$has_other_cat ) {
unset( $fields['billing']['my_field_name'] );
}
return $fields;
}