我在WooCommerce中创建了一个插件，并且在向CART / CHECKOUT页面添加自定义折扣时遇到了一个小问题。
如何在不创建优惠券的情况下将自定义折扣应用于购物车？ 假设我想在购物车页面上给予5美元的折扣。我怎样才能做到这一点？
以下是我使用优惠券申请折扣的插件文件中的代码，但我想在不使用优惠券的情况下添加其他自定义折扣。
动作挂钩插件文件：
add_action('woocommerce_calculate_totals',array(&$this,'cart_order_total_action'));
及其在插件文件中的功能是：
public function cart_order_total_action(){
if ( is_user_logged_in() ){
global $woocommerce;
global $current_user;
global $wpdb;
$u_id = $current_user->ID;
$table_name = $wpdb->prefix."woocommerce_customer_reward_ms";
$thetable2 = $wpdb->prefix . "woocommerce_customer_reward_cart_ms";
$table_name3 = $wpdb->prefix."woocommerce_customer_reward_points_log_ms";
$data = $wpdb->get_row("SELECT * from $table_name where id=$u_id");
$data2 = $wpdb->get_row("SELECT * from $thetable2");
/* Order Id goes here */
$orders=array();//order ids
$args = array(
'numberposts' => -1,
'meta_key' => '_customer_user',
'meta_value' => $current_user->ID,
'post_type' => 'shop_order',
'post_status' => 'publish',
'tax_query'=>array(
array(
'taxonomy' =>'shop_order_status',
'field' => 'slug',
'terms' =>'on-hold'
)
)
);
$posts=get_posts($args);
$orders=wp_list_pluck( $posts, 'ID' );
$order = $orders[0];
/* Order Id ends here */
if($data){
$user_points = $data->points;
$points_set = $data2->woo_pts_set;
$coupon_code = 'wooreward_discount';
if($user_points>=$points_set){
// this following Code is optional and can be removed......as there is no need of if statement here
if ( $woocommerce->cart->has_discount( $coupon_code ) ) {
/*$woocommerce->add_error( __('Coupon Code Already Applied.!!','woocommerce'));*/
return false;
}else{
$woocommerce->cart->add_discount(sanitize_text_field($coupon_code));
$woocommerce->add_message( __('Taxco925 Reward Discount Applied.!!','woocommerce'));
}
}else{
$woocommerce->add_error( __('Not Enough Taxco925 Points.!!','woocommerce'));
}
}else{
$woocommerce->add_error( __('You have have not earned any Taxco925 Points yet.!!','woocommerce'));
}
}
}
正如您所看到的那样$woocommerce->cart->add_discount(sanitize_text_field($coupon_code));
将我的折扣添加到购物车。但它在后台使用优惠券来做到这一点。有没有办法可以在不使用优惠券的情况下添加自定义折扣。
答案 0 :(得分：7)
add_action('woocommerce_checkout_order_processed','custom_disount',10,1);
function custom_disount($order_id){
$order = wc_get_order($order_id);
$order_items = $order->get_items();
foreach ($order_items as $order_item_key => $order_item) {
$product = new WC_Product((int) $order_item['product_id']);
$quantity = (int) $order_item['qty'];
$discount=($product->regular_price*30)/100; //30% disount.
wc_update_order_item_meta($order_item_key,'_line_total',($product->regular_price*$quantity)-($discount*$quantity));
}
}
答案 1 :(得分：5)
您可以使用“woocommerce_get_discounted_price”挂钩为购物车中的每件商品添加折扣。 例如：
function filter_woocommerce_get_discounted_price( $price, $values, $instance ) {
//$price represents the current product price without discount
//$values represents the product object
//$instance represent the cart object
$discount = 300; // add custom discount rule , This is just an example
return ($price - $discount);
};
add_filter('woocommerce_get_discounted_price','filter_woocommerce_get_discounted_price', 10, 3 );
答案 2 :(得分：4)
可能为时已晚，但如果有人有其他解决方案告诉我。
我用的是：
$discount = floatval(10);
if(!empty($discount) || $discount != 0){
$discount *= -1; // convert positive to negative fees
$woocommerce->cart->add_fee('discount', $discount, true, '' ); // add negative fees
}
如果您使用PayPal标准付款，则会收到错误，因为您无法提交具有负价格的产品。
您只需编辑paypal woocommerce插件即可传递此值。
但其他付款方式还可以！
最诚挚的问候，
答案 3 :(得分：1)
添加负值费用将不会产生正确的总费用。 费用金额上加了税，导致总费用高于预期。
在从购物车创建订单之前，您需要创建一个“优惠券”并将其应用到购物车（如果直接将其应用到$ order上，则计算不正确）。然后重新计算购物车->总计，最后从购物车中创建一个订单，保存订单后，您可以根据需要删除“动态”创建的“优惠券”。您可以创建具有任何动态$ value和任何类型（固定，百分比等）的动态优惠券。
这是在woo3 +中添加折扣的唯一方法。 在折扣方面，收费是错误的。还要说说费用“不要在这里使用负值！”。
我猜你想举个例子吗？
这里。...
<?php
// this code inside wordpress and with woo3+ of course......
// you have to figure out the rest yourself, how to implement it. but here it is...
$order_data = array (
'status' => 'on-hold' // or whatever order staus
// can have more data if need here...
);
// below creates a coupon with discount_type = fixed_cart, default.
$coupon = array (
'post_title' => 'coupon_discount',
'post_status' => 'publish',
'post_type' => 'shop_coupon'
);
// can be modified with update_post_meta discount_type = percent and so on....
$dynamic_discount = 20; // yes, just a number can be from another dynamic input source....
$new_coupon_id = wp_insert_post( $coupon ); // add the coupon to the cart
add_post_meta( $new_coupon_id , 'coupon_amount' , $dynamic_discount , true ); // add the "discount" value ($dynamic_discount)..... depends on discount_type... in this case fixed_cart
WC()->cart->add_to_cart( 2122 , 2 ); // add products, product_id , quantity ..... can be in a loop.
WC()->cart->add_discount( 'coupon_discount' ); // APPLY THE COUPON WITH DISCOUNT -> This is the trick....
WC()->cart->calculate_totals(); // do some math on the "cart"
WC()->checkout(); // yes, checkout the "cart", now with the discount....
$order_id = WC()->checkout()->create_order( $order_data ); // basic order data, see the top in this script.. get new created order_id.
$order = wc_get_order( $order_id ); // get the order...
// can do more with $order here if want, but NOT any coupons... it just not work in $order as is...
$order->calculate_totals(); // math
WC()->cart->empty_cart(); // empty cart....
$order->save(); // save the order...
wp_delete_post( $new_coupon_id , true ); // IF you want to delete the "dynamic" coupon created above... up 2 u, if not you will end up with a lot of coupons
// sorry, a bad example, uggly code, but at least it work.... :)
// btw, i like Pattaya, send bitcoins :)
// Again, sorry for uggly code...
?>