基于Woocommerce中用户输入的自定义购物车项目价格 [英] Custom cart item price based on user input in Woocommerce

问题描述

在我们的Woocommerce商店中，我们为任何产品设置了最低价格。并且在每个产品内页中都有两个字段，客户可以在其中键入产品的宽度，高度。然后他们可以将此产品添加到购物车，然后根据给定的宽度和高度更改价格。

例如，某产品的最低价格为 50 。然后客户添加 width = 2，height = 3 ，则该产品的价格将为 50 * 2 * 3 = 300

因此要安排这些，我们将此代码添加到 function.php

  add_filter（'woocommerce_add_cart_item'，'add_custom_cart_item_data'，10，2）; 
函数add_custom_cart_item_data（$ cart_item_data，$ cart_item_key）{
 
 $ result = $ _ POST ['width'] * $ _ POST ['height'] * $ cart_item_data ['data']-> ;价钱; 
 
 $ cart_item_data [‘new-price’] = $结果； 
 
 $ cart_item_data [’data’]-> set_price（$ result）; 
 
返回$ cart_item_data; 
} 
  

因此，此操作正常。

但是问题在于，一旦进入结帐页面，产品价格就会显示为50，但实际上是300。

p>

所以要克服这个问题，我使用以下代码

  add_filter（'woocommerce_cart_item_subtotal '，'update_with_custom_details'，10，3）; 
函数update_with_custom_details（$ subtotal，$ cart_item，$ cart_item_key）{
 $ subtotal =£。$ cart_item [’line_total’]; 
返回$小计； 
} 
  

现在显示的是£300，但我知道此代码是错误的。 / p>

代码错误，因为当客户为该产品应用50％优惠券代码时，折扣为25，因为它基于 50计算* .5 = 25; 但是实际上产品的新价格是300，所以折扣应该是 300 * 5 = 150;

那么我如何在购物车页面，结帐页面，迷你购物车等中更新产品价格？

请帮忙。

请另请参阅

解决方案

更新2：正确的实现方法需要分两步进行：

• 我们计算添加到购物车事件挂钩的价格，将其保存为自定义购物车项目数据。


• 我们在 woocommerce_before_calculate_totals 钩子

中设置该计算的价格。 ul>



代码：

  //将购物车项中的自定义字段值另存为自定义数据
 add_filter（'woocommerce_add_cart_item_data'，'calculate_custom_cart_item_prices'，30，3）; 
函数calculate_custom_cart_item_prices（$ cart_item_data，$ product_id，$ variation_id）{
 if（isset（$ _ POST ['width']）&& isset（$ _ POST ['height']））{
 //获取要使用的正确ID（与产品版本兼容）
 $ the_id = $ variation_id> 0？ $ variation_id：$ product_id; 
 
 $ product = wc_get_product（$ the_id）; //获取WC_Product对象
 $ product_price =（float）$ product-> get_price（）; //获取产品价格
 
 //获取发布的数据
 $ width =（float）sanitize_text_field（$ _POST [’width’]）; 
 $ height =（float）sanitize_text_field（$ _POST [’height’]）; 
 
 $ new_price = $宽度* $高度* $ product_price; //计算得出的价格
 
 $ cart_item_data [‘calculated-price’] = $ new_price; //将此价格另存为自定义数据
} 
 return $ cart_item_data; 
} 
 
 //在购物车价格
中设置自定义计算价格add_action（‘woocommerce_before_calculate_totals’，‘set_calculated_cart_item_price’，20，1）; 
函数set_calculated_cart_item_price（$ cart）{
 if（is_admin（）&&！defined（'DOING_AJAX'））
 return; 
 
 if（did_action（‘woocommerce_before_calculate_totals'）> == 2）
 return; 
 
 //遍历购物车项目
 foreach（$ cart-> get_cart（）as $ cart_item）{
 if（！empty（$ cart_item ['calculated-price' ]}} {
 //设置计算出的商品价格（如果有）
 $ cart_item ['data']-> set_price（$ cart_item ['calculated-price']）; 
} 
} 
} 
  

代码已输入您的活动子主题（或主题）的function.php文件。经过测试并可以正常工作。





---





出于测试目的，我使用了以下内容在单个产品页面上输出2个自定义字段的代码：

  //隐藏的产品自定义字段
 add_action（'woocommerce_before_add_to_cart_button '，'add_gift_wrap_field'）; 
函数add_gift_wrap_field（）{
全局$ product; 
 //伪造的计算价格
？> 
< div> 
< label class = product-custom-text-label for = servicetime><？php _e（'Custom text：'，'woocommerce'）; < br> 
< input type = text id = user-width name = width value =>< br> 
< input type = text id = user-height name = height value => 
< / label> 
< / div>< br> 
<？php 
} 
  




in our Woocommerce store we have some minimum price for any products . And in every product inner page there is two filed where customer can type width , height of the product . And then they can add this product to cart, then price is changed based on given width and height.

For example if the minimum price for a product is 50 . And customer add width =2, height=3 , then the price for this product is going to 50*2*3=300

So to arrange this we add this code to function.php

add_filter( 'woocommerce_add_cart_item', 'add_custom_cart_item_data', 10, 2 );
function add_custom_cart_item_data( $cart_item_data, $cart_item_key ) {

   $result=$_POST['width']*$_POST['height']*$cart_item_data['data']->price;

   $cart_item_data['new-price'] =$result;

   $cart_item_data['data']->set_price($result);

   return $cart_item_data;
}

So this is working correctly .

But the problem is once it is coming to checkout page then the product price is showing as 50 , but it is 300 actually.

so to overcome this i use the following code

add_filter( 'woocommerce_cart_item_subtotal', 'update_with_custom_details', 10, 3 ); 
function update_with_custom_details( $subtotal, $cart_item, $cart_item_key ) {
     $subtotal =" £".$cart_item['line_total'];
     return $subtotal;
}

now it is showing £300, but i know this code is wrong.

The code is wrong because when customer apply a 50% coupon code for this product then the discount is coming as 25 , Because it calculating based on 50*.5=25; But actually product new price is 300, so the discount should be 300*5=150;

So how i can update the product price in cart page, checkout page ,mini cart etc ?

Please help .

Please see this also Woocommerce product custom price is not accepted by wocommerce coupon

解决方案

Update 2: The correct way to do it need to be done in two steps:

• We calculate the price on add to cart event hook and save it as custom cart item data.
• We set that calculated price in woocommerce_before_calculate_totals hook

The code:

// Save custom field value in cart item as custom data
add_filter( 'woocommerce_add_cart_item_data', 'calculate_custom_cart_item_prices', 30, 3 );
function calculate_custom_cart_item_prices( $cart_item_data, $product_id, $variation_id ) {
    if ( isset($_POST['width']) && isset($_POST['height']) ) {
        // Get the correct Id to be used (compatible with product variations)
        $the_id = $variation_id > 0 ? $variation_id : $product_id;

        $product = wc_get_product( $the_id ); // Get the WC_Product object
        $product_price = (float) $product->get_price(); // Get the product price

        // Get the posted data
        $width  = (float) sanitize_text_field( $_POST['width'] );
        $height = (float) sanitize_text_field( $_POST['height'] );

        $new_price = $width * $height * $product_price; // Calculated price

        $cart_item_data['calculated-price'] = $new_price; // Save this price as custom data
    }
    return $cart_item_data;
}

// Set custom calculated price in cart item price
add_action( 'woocommerce_before_calculate_totals', 'set_calculated_cart_item_price', 20, 1 );
function set_calculated_cart_item_price( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

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

    // Loop through cart items
    foreach ( $cart->get_cart() as $cart_item ){
        if( ! empty( $cart_item['calculated-price'] ) ){
            // Set the calculated item price (if there is one)
            $cart_item['data']->set_price( $cart_item['calculated-price'] );
        }
    }
}

Code goes in function.php file of your active child theme (or theme). Tested and works.

---

For testing purpose, I have used the following code that output 2 custom fields on single product pages:

// The hidden product custom field
add_action( 'woocommerce_before_add_to_cart_button', 'add_gift_wrap_field' );
function add_gift_wrap_field() {
    global $product;
    // The fake calculated price
    ?>
        <div>
            <label class="product-custom-text-label" for="servicetime"><?php _e( 'Custom text:', 'woocommerce'); ?><br>
                <input type="text" id="user-width" name="width" value=""><br>
                <input type="text" id="user-height" name="height" value="">
            </label>
        </div><br>
    <?php
}

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