获取woocommerce 3中的自定义结帐字段的值 [英] Get the value of a custom checkout field in woocommerce 3
问题描述
在Woocommerce结帐中,我要添加一个自定义结帐字段,这是我的代码:
In Woocommerce checkout, I am adding a custom checkout field and here is my code:
add_action( 'woocommerce_before_order_notes', 'shipping_add_select_checkout_field' );
function shipping_add_select_checkout_field( WC_Checkout $checkout ) {
$options = array_merge( [ '' => __( 'Nothing to select' ), ], city_zone() );
woocommerce_form_field( 'billing_country_zone', array(
'type' => 'select',
'class' => array( 'form-row-wide', 'address-field', 'update_totals_on_change' ),
'label' => __( 'City zone' ),
'required' => true,
'options' => $options
), WC()->customer->billing_country_zone );
}
现在我完全迷失了,因为我需要知道 WC()-> customer-> billing_country_zone
的含义以及如何检查其值……
Now I am totally lost as I need to know what is WC()->customer->billing_country_zone
for and how can I check it's value…
我们非常感谢您的帮助.
Any help is really appreciated.
推荐答案
对于 WC()-> customer-> billing_country_zone
:
- 自Woocommerce 3以来,首先,可以在大多数所有Woocommerce实例对象上访问属性.
- 和"
billing_country_zone
"不是WC_Customer
实例对象的默认属性.
- First since Woocommerce 3, properties can be accessed on most all Woocommerce instances objects.
- And "
billing_country_zone
" is no a default property ofWC_Customer
instance object.
因为它关于结帐字段 ,因此您应该使用 $ checkout
参数,该参数是 WC_Checkout
对象的实例.然后是适当的方法 get_value()
可以在上面使用...
As it's about checkout fields, instead you should use $checkout
argument which is the instance of the WC_Checkout
Object. Then there is the appropriated method get_value()
to be used on it...
这是做什么用的?
客户提交了至少一份订单后,便会为"billing_country_zone
"选择的值显示在屏幕上.将显示在结帐页面上.
What is that for?
Once the customer has submitted at least one order, the selected value for "billing_country_zone
" will be displayed on checkout page.
因此您将不得不替换该行:
So you will have to replace the line:
), WC()->customer->billing_country_zone );
通过这个:
), $checkout->get_value('billing_country_zone') );
如果未定义
$ checkout
变量参数,则将使用WC()-> checkout
:
), WC()->checkout->get_value('billing_country_zone') );
现在,当您保存此自定义结帐字段值时,需要将其保存:
Now when you will save this custom checkout field value, you will need to save it:
- 作为订单元数据
- 还有作为用户元数据
所以这是完整的代码(注释):
// Display custom checkout field
add_action( 'woocommerce_before_order_notes', 'display_custom_checkout_field' );
function display_custom_checkout_field( $checkout ) {
$options = array_merge( [ '' => __( 'Nothing to select' ), ], city_zone() );
woocommerce_form_field( 'billing_country_zone', array(
'type' => 'select',
'class' => array( 'form-row-wide', 'address-field', 'update_totals_on_change' ),
'label' => __( 'City zone' ),
'required' => true,
'options' => $options
), $checkout->get_value('billing_country_zone') );
}
// custom checkout field validation
add_action( 'woocommerce_checkout_process', 'custom_checkout_field_validation' );
function custom_checkout_field_validation() {
if ( isset( $_POST['billing_country_zone'] ) && empty( $_POST['billing_country_zone'] ) )
wc_add_notice( __( 'Please select a <strong>"City zone"</strong>.', 'woocommerce' ), 'error' );
}
// Save custom checkout field value as custom order meta data and user meta data too
add_action( 'woocommerce_checkout_create_order', 'custom_checkout_field_update_order_meta', 20, 2 );
function custom_checkout_field_update_order_meta( $order, $data ) {
if ( isset( $_POST['billing_country_zone'] ) ) {
// Save custom checkout field value
$order->update_meta_data( '_billing_country_zone', esc_attr( $_POST['billing_country_zone'] ) );
// Save the custom checkout field value as user meta data
if( $order->get_customer_id() )
update_user_meta( $order->get_customer_id(), 'billing_country_zone', esc_attr( $_POST['billing_country_zone'] ) );
}
}
代码进入您的活动子主题(或活动主题)的function.php文件中.经过测试并可以正常工作.
Code goes in function.php file of your active child theme (or active theme). tested and works.
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