我正在创建一个插件，该插件将使用API计算自定义运输变体。我有一个jQuery脚本，它根据输入的地址计算邮政编码和fias编码。
$("#billing_address_1").suggestions({
serviceUrl: "https://suggestions.dadata.ru/suggestions/api/4_1/rs",
token: php_vars.dadata_suggest_token,
type: "ADDRESS",
count: 5,
onSelect: function (suggestion) {
$("#billing_city").val(suggestion.data.city);
$("#billing_state").val(suggestion.data.region);
$("#billing_postcode").val(suggestion.data.postal_code);
if (suggestion.data.settlement_fias_id)
$("#billing_fias_code").val(suggestion.data.settlement_fias_id);
else if (suggestion.data.city_fias_id)
$("#billing_fias_code").val(suggestion.data.city_fias_id);
else
$("#billing_fias_code").val('');
}
});
为了存储fias代码，我创建了自定义字段。
add_filter( 'woocommerce_checkout_fields' , array( $this, 'custom_checkout_fields' ));
add_action( 'woocommerce_checkout_update_order_meta', array( $this, 'shipping_apartment_update_order_meta') );
function custom_checkout_fields( $fields ) {
$fields['shipping']['shipping_fias_code'] = array(
'type' => 'text',
'label' => __('FIAS', 'woocommerce'),
'placeholder' => _x('Код', 'placeholder', 'woocommerce'),
'required' => false,
'class' => array('form-row-wide'),
'clear' => true
);
$fields['billing']['billing_fias_code'] = array(
'type' => 'text',
'label' => __('FIAS', 'woocommerce'),
'placeholder' => _x('Код', 'placeholder', 'woocommerce'),
'required' => false,
'class' => array('form-row-wide'),
'clear' => true
);
return $fields;
}
function shipping_apartment_update_order_meta( $order_id ) {
if ( ! empty( $_POST['shipping_fias_code'] ) ) {
update_post_meta( $order_id, 'shipping_fias_code', sanitize_text_field( $_POST['shipping_fias_code'] ) );
}
if ( ! empty( $_POST['billing_fias_code'] ) ) {
update_post_meta( $order_id, 'billing_fias_code', sanitize_text_field( $_POST['billing_fias_code'] ) );
}
}
wooccommerce中WC_shipping_method中的calculate_shipping((方法使用$package变量计算运输选项，该变量有一个包含运输地址信息的"destination"数组字段。默认情况下，邮政编码会传递到此数组中。但我也需要在$package中传递我的自定义字段。
据我所知，只有在表单发布后，我创建的字段才会保存通过jQuery脚本添加到那里的信息。但是$package["destination"]中包含的其他字段在添加信息后会立即保存。
如何将签出表单中自定义字段的数据添加到$package['destination']变量？
我无法测试(或修改(您的jQuery代码，所以您必须自己处理它，也许会对它进行一些更改。我已经完全重新访问了您的所有代码(除了jQuery代码(，一切都如您所愿。
因此，$package['destination']将有一个用于'fias_code'的附加条目。
评论代码：
// Add billing and shipping fields
add_filter( 'woocommerce_billing_fields' , 'custom_billing_fields' );
add_filter( 'woocommerce_shipping_fields' , 'custom_shipping_fields' );
function custom_shipping_fields( $fields ) {
$fields['shipping_fias_code'] = array(
'type' => 'text',
'label' => __('FIAS', 'woocommerce'),
'placeholder' => _x('Код', 'placeholder', 'woocommerce'),
'required' => false,
'class' => array('form-row-wide'),
'clear' => true
);
return $fields;
}
function custom_billing_fields( $fields ) {
$fields['billing_fias_code'] = array(
'type' => 'text',
'label' => __('FIAS', 'woocommerce'),
'placeholder' => _x('Код', 'placeholder', 'woocommerce'),
'required' => false,
'class' => array('form-row-wide'),
'clear' => true
);
return $fields;
}
// Ajax sender
add_action( 'wp_footer', 'checkout_send_fias_code_via_ajax_js' );
function checkout_send_fias_code_via_ajax_js() {
if ( is_checkout() && ! is_wc_endpoint_url() ) :
?><script type="text/javascript">
jQuery( function($){
if (typeof wc_checkout_params === 'undefined')
return false;
// Function that send the Ajax request
function sendAjaxRequest( value, fieldset = 'billing' ) {
$.ajax({
type: 'POST',
url: wc_checkout_params.ajax_url,
data: {
'action': 'fias_code',
'fias_code': value,
'fieldset' : fieldset
},
success: function (result) {
$(document.body).trigger('update_checkout'); // Update checkout processes
console.log( result ); // For testing (output data sent)
}
});
}
// Billing fias code change & input events
$(document.body).on( 'change input', 'input[name=billing_fias_code]', function() {
sendAjaxRequest( $(this).val() );
});
// Shipping fias code change & input events
$(document.body).on( 'change input', 'input[name=shipping_fias_code]', function() {
sendAjaxRequest( $(this).val(), 'shipping' );
});
});
</script>
<?php
endif;
}
// The Wordpress Ajax PHP receiver (set data to a WC_Session variable)
add_action( 'wp_ajax_fias_code', 'set_fias_code_to_wc_session' );
add_action( 'wp_ajax_nopriv_fias_code', 'set_fias_code_to_wc_session' );
function set_fias_code_to_wc_session() {
$field_key = 'fias_code';
if ( isset($_POST[$field_key]) && isset($_POST['fieldset']) ){
// Get data from custom session variable
$values = (array) WC()->session->get($field_key);
// Initializing when empty
if( ! empty($values) ) {
$values = array(
'billing' => WC()->customer->get_meta('billing_'.$field_key),
'shipping' => WC()->customer->get_meta('shipping_'.$field_key)
);
}
// Sanitizing data sent
$fieldset = esc_attr($_POST['fieldset']);
$fias_code = sanitize_text_field($_POST[$field_key]);
// Set / udpate custom WC_Session variable
$values[$fieldset] = $fias_code;
WC()->session->set($field_key, wc_clean($values));
// Send back to javascript the data received as an array (json encoded)
echo json_encode(array($fieldset.'_'.$field_key => $fias_code));
wp_die(); // always use die() or wp_die() at the end to avoird errors
}
}
// Update checkout fields 'fias_code' values from custom WC_session variable
add_filter('woocommerce_checkout_get_value', 'update_fias_code_checkout_fields_values', 10, 2 );
function update_fias_code_checkout_fields_values( $value, $input ) {
$field_key = 'fias_code';
// Get data from custom session variable
$values = (array) WC()->session->get($field_key);
if ( ! empty($values) ) {
if ( 'billing_'.$field_key === $input ) {
$value = $values['billing'];
}
if ( 'shipping_'.$field_key === $input ) {
$value = $values['shipping'];
}
}
return $value;
}
// Add 'fias_code' data to destination shipping packages
add_filter( 'woocommerce_cart_shipping_packages', 'add_fias_code_to_destination_shipping_package' );
function add_fias_code_to_destination_shipping_package( $packages ) {
$customer = WC()->customer; // The WC_Customer Object
// Get 'fias_code' data from customer meta data
$main_key = 'fias_code';
$meta_value = $customer->get_meta('shipping_'.$main_key);
$meta_value = empty($meta_value) ? $customer->get_meta('billing_'.$main_key) : $meta_value;
// Get data from custom session variable
$values = (array) WC()->session->get($main_key);
if ( ! empty($values) ) {
$session_value = $values['shipping'];
if ( $session_value === $meta_value ) {
$session_value = $values['billing'];
if ( $session_value !== $meta_value ) {
$meta_value = $values['billing'];
}
} else {
$meta_value = $session_value;
}
}
// Loop through shipping packages
foreach ( $packages as $key => $package ) {
// Set to destination package the "fias_code"
$packages[$key]['destination'][$main_key] = $meta_value;
}
return $packages;
}
// Remove custom WC_Session variable once order has been created (before thankyou)
add_action( 'woocommerce_checkout_order_created', 'remove_fias_code_custom_wc_session_variable' );
function remove_fias_code_custom_wc_session_variable() {
// Remove the custom WC_Session variable
WC()->session->__unset('fias_code');
}
此代码位于活动子主题(或活动主题(的functions.php文件中。测试并工作。
重要注意事项：
显示和保存fias_code签出字段：
我使用woocommerce_billing_fields和woocommerce_shipping_fields过滤器挂钩，而不是woocommerce_checkout_fields，因为这样数据本身就保存为订单元数据和用户元数据。所以你的最后一个功能不再需要了
与所有计费和运输订单元数据一样，订单元键以下划线开头
字段将显示在我的帐户编辑地址上…因此，如果您想避免这种情况，您需要向两个相关挂钩添加一个条件。
关于我的jQuery代码：
你应该更好地将它复制到一个外部文件中，并以一种干净的WordPress方式注册/入队，将输出限制为仅限签出页面。然后你将删除相关的动作挂钩和挂钩的功能…
关于操作和过滤器挂钩：
您必须更改插件的所有add_action()和add_filter()，如：
add_filter( 'woocommerce_billing_fields' , array($this, 'custom_billing_fields') );
add_filter( 'woocommerce_shipping_fields' , array($this, 'custom_shipping_fields') );
add_action( 'wp_footer', array($this, 'checkout_send_fias_code_via_ajax_js') );
add_action( 'wp_ajax_fias_code', array($this, 'set_fias_code_to_wc_session') );
add_action( 'wp_ajax_nopriv_fias_code', array($this, 'set_fias_code_to_wc_session') );
add_filter('woocommerce_checkout_get_value', array($this, 'update_fias_code_checkout_fields_values'), 10, 2 );
add_filter( 'woocommerce_cart_shipping_packages', array($this, 'add_fias_code_to_destination_shipping_package') );
add_action( 'woocommerce_checkout_order_created', array($this, 'remove_fias_code_custom_wc_session_variable') );