在 WooCommerce 中通过 Google API 计算距离运费
Calculated distance shipping cart fee via Google API in WooCommerce
所以，在SO和互联网的帮助下，我写了一段代码。我想通过 Google Maps API Distance-Matrix 计算供应商位置 (billing_city) 和客户区域之间的距离来向购物车添加费用。在这里，我使用账单后的下拉列表来获取客户区域。
我在从 cookie 获取值并将变量传递给下一个函数时遇到问题。 FYKI，我已将这段代码插入到我的子主题函数中。
add_action( 'wp_footer', 'calculate_distance_between_two_locations' );
function calculate_distance_between_two_locations($dist) {
// I am getting first item of the cart
foreach( WC()->cart->get_cart() as $cart_item ){
$product_id = $cart_item['product_id'];
break;
}
//Now I am fetching vendor's id and location of the item
$vendor_id = get_post_field( 'post_author', $product_id );
$vendor_location = get_user_meta($vendor_id, 'billing_city', true);
//Here I'm fetching the value from customer location
//I am using a dropdown/select named billing_myfield5
if (is_checkout()) {?>
<script type="text/javascript">
jQuery( document ).ready(function( $ ) {
$('#billing_myfield5').change(function(){
jQuery('body').trigger('update_checkout');
var location = $('#billing_myfield5 option:selected').text();
document.cookie="cusarea="+location;
});
});
</script>
<?php
}
//Encoding the customer's location for Google API
//and putting it into a variable
$customer_area = rawurlencode($_COOKIE ['cusarea']);
//I am setting Google API
$shippingurl = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=".$vendor_location."&destinations=".$customer_area."&key=MY_API_KEY";
//Now fetching json response from googleapis.com:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $shippingurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = json_decode(curl_exec($ch), true);
//If google responds with a status of OK
//Extract the distance text:
if($response['status'] == "OK"){
$dist = $response['rows'][0]['elements'][0]['distance']['text'];
}
//Getting the integers from the string
$dist_ance = preg_replace("/[^0-9\.]/", '', $dist);
//Finally putting the value in session
session_start();
$_SESSION['dist'] = $dist_ance;
}
所以，现在我应该在 $_SESSION['dist'] 中有一个值，并且我应该能够将它传递给同一页面中的另一个函数。这是我用来计算购物车费用的代码。
add_action( 'woocommerce_cart_calculate_fees', 'woo_add_cart_fee' );
function woo_add_cart_fee( $cart ){
if ( ! $_POST || ( is_admin() && ! is_ajax() ) ) {
return;
}
if($_SESSION['dist']){
$customshipcost = $dist_ance;
if ( is_admin() && ! defined ( 'DOING_AJAX' ))
WC()->cart->add_fee('Distance Delivery Charge', $customshipcost , true);
}
}
嗯，实际上我有两个问题。非常感谢任何帮助。
- 有时我会从 cookie 中获取值，有时则不会。我用回声
检查它是否给我价值。
- 会话没有响应。我的购物车费用为“0”。
FYKI，我现在只是想在购物车中仅显示数字距离作为费用。
这是在 woocommerce_cart_calculate_fees 操作挂钩中获取所选位置值的正确方法。我已经移动了这个钩子函数中的所有 php 代码。
在挂钩到 woocommerce_after_checkout_form 动作挂钩的自定义函数中，我添加了您修改后的 jQuery 代码。
我已经测试了所有内容（但不是 google API 部分和距离计算费用）并且它可以实时运行：每次选择一个值时，它都会在费用函数中更新。
代码如下：
add_action( 'woocommerce_after_checkout_form', 'custom_checkout_jquery_script', 10 );
function custom_checkout_jquery_script() {
// Setting the country in customer data and session
$country_code = 'BD'; // For Bangladesh
WC()->session->set( 'country', $country_code );
WC()->session->set( 'billing_country', $country_code );
WC()->session->set( 'shipping_country', $country_code );
WC()->customer->set_billing_country( $country_code );
WC()->customer->set_shipping_country( $country_code );
// The jQuery code
?>
<script type="text/javascript">
(function($){
// Initializing (get the default value)
var location = $('#billing_myfield5 option:selected').html();
document.cookie="cusarea="+location;
// To test the default location output in browser console dev tools
console.log('Selected Area: '+location);
// Get the live value when selected
$( 'form.checkout' ).on( 'change', '#billing_myfield5', function(){
location = $('#billing_myfield5 option:selected').html();
document.cookie="cusarea="+location;
$('body').trigger('update_checkout');
// To test the selected location output in browser console dev tools
console.log('Selected Area: '+location);
});
})(jQuery);
</script>
<?php
}
add_action( 'woocommerce_cart_calculate_fees', 'distance_shipping_fee', 10, 1 );
function distance_shipping_fee( $wc_cart ){
if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;
if( empty($_COOKIE ['cusarea']) ) return; // Waiting for the selected area (cookie)
else $cookie = $_COOKIE ['cusarea'];
// Encoding the customer's location for Google API
$customer_area = rawurlencode( $cookie );
// I am getting first item of the cart
foreach( $wc_cart->get_cart() as $cart_item ){
$product_id = $cart_item['product_id'];
break;
}
// Get the vendor's id and location
$vendor_id = get_post_field( 'post_author', $product_id );
$vendor_location = get_user_meta($vendor_id, 'billing_city', true);
// Setting Google API URL ##
$gapi_key = "MY_API_KEY"; // Set HERE your google api key
$shippingurl = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=$vendor_location";
$shippingurl .= "&destinations=$customer_area&key=$gapi_key";
// Now fetching json response from googleapis:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $shippingurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = json_decode(curl_exec($ch), true);
// If google responds with a status of OK: Extract the distance text:
if($response['status'] == "OK")
$dist = $response['rows'][0]['elements'][0]['distance']['text'];
// Getting the integers from the string
$distance = preg_replace("/[^0-9\.]/", '', $dist);
if( $distance > 0 ){
$customshipcost = $distance;
// Displaying the selected location in the fee label
$wc_cart->add_fee( "Distance Delivery fee ($cookie)", $customshipcost , true);
}
}
代码进入您的活动子主题（或主题）的 function.php 文件或任何插件文件。
所有代码都在 Woocommerce 3+ 上测试并且有效。
This will solve your coockie and session problem
所以，在SO和互联网的帮助下，我写了一段代码。我想通过 Google Maps API Distance-Matrix 计算供应商位置 (billing_city) 和客户区域之间的距离来向购物车添加费用。在这里，我使用账单后的下拉列表来获取客户区域。
我在从 cookie 获取值并将变量传递给下一个函数时遇到问题。 FYKI，我已将这段代码插入到我的子主题函数中。
add_action( 'wp_footer', 'calculate_distance_between_two_locations' );
function calculate_distance_between_two_locations($dist) {
// I am getting first item of the cart
foreach( WC()->cart->get_cart() as $cart_item ){
$product_id = $cart_item['product_id'];
break;
}
//Now I am fetching vendor's id and location of the item
$vendor_id = get_post_field( 'post_author', $product_id );
$vendor_location = get_user_meta($vendor_id, 'billing_city', true);
//Here I'm fetching the value from customer location
//I am using a dropdown/select named billing_myfield5
if (is_checkout()) {?>
<script type="text/javascript">
jQuery( document ).ready(function( $ ) {
$('#billing_myfield5').change(function(){
jQuery('body').trigger('update_checkout');
var location = $('#billing_myfield5 option:selected').text();
document.cookie="cusarea="+location;
});
});
</script>
<?php
}
//Encoding the customer's location for Google API
//and putting it into a variable
$customer_area = rawurlencode($_COOKIE ['cusarea']);
//I am setting Google API
$shippingurl = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=".$vendor_location."&destinations=".$customer_area."&key=MY_API_KEY";
//Now fetching json response from googleapis.com:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $shippingurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = json_decode(curl_exec($ch), true);
//If google responds with a status of OK
//Extract the distance text:
if($response['status'] == "OK"){
$dist = $response['rows'][0]['elements'][0]['distance']['text'];
}
//Getting the integers from the string
$dist_ance = preg_replace("/[^0-9\.]/", '', $dist);
//Finally putting the value in session
session_start();
$_SESSION['dist'] = $dist_ance;
}
所以，现在我应该在 $_SESSION['dist'] 中有一个值，并且我应该能够将它传递给同一页面中的另一个函数。这是我用来计算购物车费用的代码。
add_action( 'woocommerce_cart_calculate_fees', 'woo_add_cart_fee' );
function woo_add_cart_fee( $cart ){
if ( ! $_POST || ( is_admin() && ! is_ajax() ) ) {
return;
}
if($_SESSION['dist']){
$customshipcost = $dist_ance;
if ( is_admin() && ! defined ( 'DOING_AJAX' ))
WC()->cart->add_fee('Distance Delivery Charge', $customshipcost , true);
}
}
嗯，实际上我有两个问题。非常感谢任何帮助。
- 有时我会从 cookie 中获取值，有时则不会。我用回声 检查它是否给我价值。
- 会话没有响应。我的购物车费用为“0”。
FYKI，我现在只是想在购物车中仅显示数字距离作为费用。
这是在 woocommerce_cart_calculate_fees 操作挂钩中获取所选位置值的正确方法。我已经移动了这个钩子函数中的所有 php 代码。
在挂钩到 woocommerce_after_checkout_form 动作挂钩的自定义函数中，我添加了您修改后的 jQuery 代码。
我已经测试了所有内容（但不是 google API 部分和距离计算费用）并且它可以实时运行：每次选择一个值时，它都会在费用函数中更新。
代码如下：
add_action( 'woocommerce_after_checkout_form', 'custom_checkout_jquery_script', 10 );
function custom_checkout_jquery_script() {
// Setting the country in customer data and session
$country_code = 'BD'; // For Bangladesh
WC()->session->set( 'country', $country_code );
WC()->session->set( 'billing_country', $country_code );
WC()->session->set( 'shipping_country', $country_code );
WC()->customer->set_billing_country( $country_code );
WC()->customer->set_shipping_country( $country_code );
// The jQuery code
?>
<script type="text/javascript">
(function($){
// Initializing (get the default value)
var location = $('#billing_myfield5 option:selected').html();
document.cookie="cusarea="+location;
// To test the default location output in browser console dev tools
console.log('Selected Area: '+location);
// Get the live value when selected
$( 'form.checkout' ).on( 'change', '#billing_myfield5', function(){
location = $('#billing_myfield5 option:selected').html();
document.cookie="cusarea="+location;
$('body').trigger('update_checkout');
// To test the selected location output in browser console dev tools
console.log('Selected Area: '+location);
});
})(jQuery);
</script>
<?php
}
add_action( 'woocommerce_cart_calculate_fees', 'distance_shipping_fee', 10, 1 );
function distance_shipping_fee( $wc_cart ){
if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;
if( empty($_COOKIE ['cusarea']) ) return; // Waiting for the selected area (cookie)
else $cookie = $_COOKIE ['cusarea'];
// Encoding the customer's location for Google API
$customer_area = rawurlencode( $cookie );
// I am getting first item of the cart
foreach( $wc_cart->get_cart() as $cart_item ){
$product_id = $cart_item['product_id'];
break;
}
// Get the vendor's id and location
$vendor_id = get_post_field( 'post_author', $product_id );
$vendor_location = get_user_meta($vendor_id, 'billing_city', true);
// Setting Google API URL ##
$gapi_key = "MY_API_KEY"; // Set HERE your google api key
$shippingurl = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=$vendor_location";
$shippingurl .= "&destinations=$customer_area&key=$gapi_key";
// Now fetching json response from googleapis:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $shippingurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = json_decode(curl_exec($ch), true);
// If google responds with a status of OK: Extract the distance text:
if($response['status'] == "OK")
$dist = $response['rows'][0]['elements'][0]['distance']['text'];
// Getting the integers from the string
$distance = preg_replace("/[^0-9\.]/", '', $dist);
if( $distance > 0 ){
$customshipcost = $distance;
// Displaying the selected location in the fee label
$wc_cart->add_fee( "Distance Delivery fee ($cookie)", $customshipcost , true);
}
}
代码进入您的活动子主题（或主题）的 function.php 文件或任何插件文件。
所有代码都在 Woocommerce 3+ 上测试并且有效。
This will solve your coockie and session problem