在 Woocommerce 订阅中每月显示变化价格

Question

我有三种订阅产品，包年，半年，包月。默认情况下，价格在我的商店页面上显示为每年、每 6 个月和每月。

基于 "" 答案代码，我试图显示每个月的所有价格，因此要根据订阅期限更改价格显示：

// Utility function to change the prices with a multiplier (number)
function get_price_multiplier($var_product) {
    switch($var_product) {
        case 111:
            // Annual
            return 12;
            break;
        case 222:
            // Semiannual
            return 6;
            break;
        case 333:
            // Month
            return 1;
            break;          
        default:
            return 1;
            break;
    }
}

add_filter('woocommerce_product_variation_get_price', 'custom_price', 99, 2 );
function custom_price( $price, $product ) {
    $var_product = $product->get_id();
    return $price / get_price_multiplier($var_product);
}

这行得通，但是当将产品添加到购物车时，价格不是正常价格，而是通过上述函数修改后的价格。

基于 "" 答案代码，我已经能够解决这个问题：

add_action( 'woocommerce_before_calculate_totals', 'set_cart_item_sale_price', 20, 1 );
function set_cart_item_sale_price( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Iterate through each cart item
    foreach( $cart->get_cart() as $cart_item ) {
        $regular_price = $cart_item['data']->get_regular_price();
        $variation_id = $cart_item['variation_id'];
        $cart_item['data']->set_price( $regular_price * get_price_multiplier($variation_id) );
    }
}

这重置了购物车价格，它似乎有效，尽管其中一个价格低了一分钱。

这一切都是令人费解且容易出现问题的，还是实现我所追求的目标的可靠方法：在商店页面上显示每个订阅期限的价格？

Answer 1

你做对了……有两种方法（最后一种最好）：

Note: The calculation and the price change is not needed when the multiplier is equal to 1.

1) 第一个备选方案： 与您的非常相似的改进代码版本。

这是我的注释代码：

// Utility function that increase conditionally the variation price with a multiplier (int)
function get_variation_calculated_price( $variation_id, $price, $multiplier = true ) {
    switch( $variation_id ) {
        case 111: // Annual
            $rate = 12;
            break;

        case 222: // Semi-annual
            $rate = 6;
            break;

        default: // Month (and others)
            $rate = 1;
            break;
    }
    // Return calculated price (or false when multiplier is 1, as calculation is not needed)
    return $rate !== 1 ? ( $multiplier ? $price * $rate : $price / $rate ) : false;
}


// Change variations calculated prices
add_filter('woocommerce_product_variation_get_price', 'custom_price', 99, 2 );
function custom_price( $price, $variation ) {
    if( $new_price = get_variation_calculated_price( $variation->get_id(), $price, false ) )
        return $new_price;

    return $price;
}

// Customizing cart item prices
add_action( 'woocommerce_before_calculate_totals', 'set_cart_item_sale_price', 20, 1 );
function set_cart_item_sale_price( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Required since Woocommerce version 3.2 for cart items properties changes
    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Loop  through cart items
    foreach( $cart->get_cart() as $cart_item ) {
        // Only for variations
        if( $cart_item['variation_id'] > 0 ) {
            if( $new_price = get_variation_calculated_price( $cart_item['variation_id'], $cart_item['data']->get_price() ) ) {
                $cart_item['data']->set_price( $new_price );
            }
        }
    }
}

代码进入您的活动子主题（或活动主题）的 function.php 文件。已测试并有效。

2) 第二个选择：更准确和更轻便，限制产品价格避免购物车、结帐和后端的价格变化。

Note: You will need to avoid displaying Cross-sells products in cart page (as the prices will not be changed like in shop page).

这样代码会更加轻巧高效：

// Utility function that increase conditionally the variation price with a multiplier (int)
function get_variation_calculated_price( $variation_id, $price ) {
    switch( $variation_id ) {
        case 111: // Annual
            $rate = 12;
            break;

        case 939: // Semi-annual
            $rate = 6;
            break;

        default: // Month (and others)
            $rate = 1;
            break;
    }
    // Return calculated price (or false when multiplier is 1, as calculation is not needed)
    return $rate !== 1 ? $price / $rate : false;
}


// Change variations calculated prices
add_filter('woocommerce_product_variation_get_price', 'custom_price', 99, 2 );
function custom_price( $price, $variation ) {
    // Not in cart, checkout and admin
    if( is_cart() || is_checkout() || is_admin() ) 
        return $price;

    if( $new_price = get_variation_calculated_price( $variation->get_id(), $price ) )
        return $new_price;

    return $price;
}

代码进入您的活动子主题（或活动主题）的 function.php 文件。已测试并有效。

在 Woocommerce 订阅中每月显示变化价格

Display variation prices per month in Woocommerce subscriptions

php

wordpress

woocommerce

price

woocommerce-subscriptions