php - 如果在 WooCommerce 中自动添加包装，则在选择产品重量时不计算最终成本-6ren

php - 如果在 WooCommerce 中自动添加包装，则在选择产品重量时不计算最终成本

转载作者：行者123 更新时间：2023-12-04 15:32:36

在 WooCommerce 中，我使用一个代码来显示牛排重量选择表单，保存选择数据并在购物车、结帐页面、编辑订单时和电子邮件通知中显示此数据。

// Display Custom Checkbox Field
add_action('woocommerce_product_options_general_product_data', 'steak_custom_field_add');
function steak_custom_field_add(){
    global $post;

    // Checkbox
    woocommerce_wp_checkbox(
        array(
            'id' => '_steak_checkbox',
            'label' => __('Steak Weight', 'woocommerce' ),
            'description' => __( 'If necessary, enable steak weight selection', 'woocommerce' )
        )
    );
}

// Save Custom Checkbox Field
add_action('woocommerce_process_product_meta', 'steak_custom_field_save');
function steak_custom_field_save($post_id){
    // Custom Product Checkbox Field
    $steak_checkbox = isset( $_POST['_steak_checkbox'] ) ? 'yes' : 'no';
    update_post_meta($post_id, '_steak_checkbox', esc_attr( $steak_checkbox ));
}

// Display Custom Select Box
add_action( 'woocommerce_before_add_to_cart_button', 'display_steak_custom_field', 0 );
function display_steak_custom_field() {
    global $product;

    // If is single product page and have the "steak_checkbox" enabled we display the field
    if ( $product->get_meta( '_steak_checkbox' ) === 'yes' ) {

        echo '<div class="steak_select_box">';

        $select = woocommerce_form_field( 'steak_custom_options', array(
            'type'          => 'select',
            'class'         => array('my-steak-select-box form-row-wide'),
            'label'         => __('Steak Weight'),
            'required'      => false,
            'return'       => false,
            'options'   => array(
                ''      => 'Select...',
                '300g'  => '300g',
                '400g'  => '400g',
                '500g'  => '500g',
                '600g'  => '600g',
                '700g'  => '700g',
                '800g'  => '800g',
                '900g'  => '900g',
                '1000g'  => '1000g'
            )
        ), '' );
        echo $select;
        echo '</div>';
    }
}

// Add as custom cart item data
add_filter( 'woocommerce_add_cart_item_data', 'add_custom_steak_cart_item_data', 10, 21 );
function add_custom_steak_cart_item_data($cart_item_data, $product_id, $variation_id ){

    if( isset( $_POST['steak_custom_options'] ) ) {
        $cart_item_data['steak_option'] = wc_clean( $_POST['steak_custom_options'] );
    }
    return $cart_item_data;
}

// Add custom fields values under cart item name in cart
add_filter( 'woocommerce_cart_item_name', 'steak_custom_field_add_cart', 10, 21 );
function steak_custom_field_add_cart( $item_name, $cart_item, $cart_item_key ) {
    if( ! is_cart() )
        return $item_name;

    if( isset($cart_item['steak_option']) ) {
        $item_name .= '<div class="my-steak-class"><strong>' . __("Steak Weight", "woocommerce") . ':</strong> ' . $cart_item['steak_option'] . '</div>';
    }
    return $item_name;
}

// Display custom fields values under item name in checkout
add_filter( 'woocommerce_checkout_cart_item_quantity', 'steak_custom_checkout_cart_item_name', 10, 21 );
function steak_custom_checkout_cart_item_name( $item_qty, $cart_item, $cart_item_key ) {
    if( isset($cart_item['steak_option']) ) {
        $item_qty .= '<div class="my-steak-class"><strong>' . __("Steak Weight", "woocommerce") . ':</strong> ' . $cart_item['steak_option'] . 'гр.</div>';
    }
    return $item_qty;
}


// Save chosen select field value to each order item as custom meta data and display it everywhere
add_action('woocommerce_checkout_create_order_line_item', 'save_order_item_steak_field', 10, 21 );
function save_order_item_steak_field( $item, $cart_item_key, $values, $order ) {
    if( isset($values['steak_option']) ) {
        $key = __('Steak Weight', 'woocommerce');
        $value = $values['steak_option'];
        $item->update_meta_data( $key, $value ,$item->get_id());
    }
}

add_action('wp_footer','add_footer_steak_script');
function add_footer_steak_script(){
    ?>
    <script>
       ( function( $ ) {
   $( document ).ready( function() {
       $(document).on('change', '#steak_custom_options' ,function() {
           $('.add_to_cart_button').data('steak_custom_options', this.value)
       });
   });
 }( jQuery ) );
    </script>
    <?php
}

add_action( 'woocommerce_before_calculate_totals', 'my_before_calculate_totals', 10, 1 );
    function my_before_calculate_totals( $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_key => $cart_item ) {     
        if( isset( $cart_item['steak_option'] ) ) {

            // Remove the last 2 zeros (100g becomes 1, 300g becomes 3, 1000g becomes 10, etc...)
            // Remove 'g' from grams
            // convert string to integer
            $chosen_weight = (int) str_replace( '00', '', str_replace('g', '', $cart_item['steak_option']) );

            // Get current price
            $current_price = $cart_item['data']->get_price();

            // Set new price, price is already known per 100g
            $cart_item['data']->set_price( $current_price * $chosen_weight );
        }
    }
}

add_action('wp_footer','add_footer_steak_script');
    function add_footer_steak_script() {
    global $woocommerce, $product;
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function ($) {
            console.log('JS works!');

            var price = <?php echo $product->get_price(); ?>, currency = '<?php echo get_woocommerce_currency_symbol(); ?>';

            $( '[name=steak_custom_options]' ).change(function(){
                if (!(this.value < 1)) {
                    var dropdown_val = this.value;
                    var remove_g = dropdown_val.replace( 'g', '' );
                    var remove_double_zero = remove_g.replace( '00', '' );

                    var product_total = parseFloat( price * remove_double_zero );

                    $( '.woocommerce-Price-amount' ).html( currency + product_total.toFixed(2));

                }
            });
        });
    </script>
    <?php
}

我还使用了一个代码，在将任何菜品添加到购物车时自动添加包装。

 /**
 * Calculate the number of lunchboxes and package, based on the number of products in cart.
 */ 
function add_delivery_charge_to_cart( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

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

    /********** SETTINGS **********/

    $lunchbox_id  = 5737; // "LunchBox ID" to be added to cart
    $pakket_id = 5738; // "Pakket ID" to be added to cart
    $exclude_categories = array( 'drink', 'bread' ); // Exclude these categories

    $category_qty_total = 0; // Total of category quantity items, Don't edit!!

    /********** LOOP THROUGH CART ITEMS **********/

    foreach ( $cart->get_cart() as $cart_item_key => $cart_item ) {
        // Get product id
        $product_id = $cart_item['data']->get_id();

        // Get product quantity
        $product_qty = $cart_item['quantity'];

        // Check if "LunchBox" product is already in cart
        if( $product_id == $lunchbox_id ) {
            $lunchbox_key = $cart_item_key;
            $lunchbox_qty = $product_qty;
        }

        // Check if "Pakket" product is already in cart
        if( $product_id == $pakket_id ) {
            $pakket_key = $cart_item_key;
            $pakket_qty = $product_qty;
        }

        // Check if product belongs to a certain category
        if( has_term( $exclude_categories, 'product_cat', $product_id ) ) {
            $category_qty_total += $product_qty;
        }
    }

    /********** CALCULATE THE TOTALS, SO "LUNCHBOX", "PAKKET" & CATEGORIES ARE NOT USED IN THE TOTALS **********/

    // Get total items in cart, counts number of products & quantity per product
    $total_items_in_cart = $cart->get_cart_contents_count();

    // Total items in cart - category quantity total
    $total_items_in_cart -= $category_qty_total;

    // Lunchbox total = total_items_in_cart & pakket total = total_items_in_cart 
    $lunchbox_total = $total_items_in_cart;
    $pakket_total = $total_items_in_cart;

    // Isset lunchbox qty -> lunchbox total - lunchbox qty & pakket total - lunchbox qty
    if ( isset($lunchbox_qty) ) {
        $lunchbox_total -= $lunchbox_qty;
        $pakket_total -= $lunchbox_qty;     
    }

    // Isset pakket qty -> lunchbox total - pakket qty & pakket total - pakket qty   
    if ( isset($pakket_qty) ) {
        $lunchbox_total -= $pakket_qty;
        $pakket_total = $pakket_total - $pakket_qty;
    }

    /********** APPLY NEW TOTALS TO LUNCHBOX & PAKKET **********/

    // If product "LunchBox" is in cart, we check the quantity to update it if needed
    if ( isset($lunchbox_key) && $lunchbox_qty != $total_items_in_cart ) {
        // Set quantity, lunchbox
        $cart->set_quantity( $lunchbox_key, $lunchbox_total );

    } elseif ( !isset($lunchbox_key) && $total_items_in_cart > 0 ) {
        // Product "LunchBox" is not in cart, we add it
        $cart->add_to_cart( $lunchbox_id, $total_items_in_cart );
    }

    // Total items in cart greater than or equal to 3
    if ( $total_items_in_cart >= 3 ) {
        // Pakket total = pakket_total / 3 = floor(result)
        // Floor = round fractions down, rounding result down
        $pakket_total = floor( $pakket_total / 3 );

        // If product "Pakket" is in cart
        if ( isset($pakket_key) ) {
            // Set quantity, pakket
            $cart->set_quantity( $pakket_key, $pakket_total );

        } elseif ( !isset($pakket_key) ) {
            // Product "Pakket" is not in cart, we add it
            $cart->add_to_cart( $pakket_id, $pakket_total );
        }
    }
}
add_action( 'woocommerce_before_calculate_totals', 'add_delivery_charge_to_cart', 10, 1 );

不幸的是，这两个代码相互冲突，我不明白是什么原因。

如果加了包装，选择产品重量时不计算总量。
在购物车和结帐页面上，数据“牛排重量:300 克”已添加到包裹中。而且这些数据不应该存在。

如何解决这个问题？我很乐意为您提供帮助!

最佳答案

使用相同的钩子(Hook) woocommerce_before_calculate_totals 两次确实会导致问题，因此需要将两个代码合并到一个函数中。

随着代码的编写，现在有一些条件

pakket_id 和 lunchbox_id 产品不得以任何其他方式使用!这些是自动添加的，因此不能由您网站上的用户/访客添加
属于排除类别的产品可能不包含带下拉菜单的重量选项(pakket 和 lunchbox 产品的相同条件)

NOTE: With this piece of code I also added the lunchbox ID, otherwise you will receive a notification of the weight under the lunchbox product, in some cases.
// Add as custom cart item data
function add_custom_steak_cart_item_data( $cart_item_data, $product_id, $variation_id, $quantity ) {  
    if ( !empty( $_POST['steak_custom_options'] ) && $product_id != 5737 ) {
    ...

然后你得到

// Display Custom Checkbox Field
function steak_custom_field_add() {
    global $post;

    // Checkbox
    woocommerce_wp_checkbox(
        array(
            'id' => '_steak_checkbox',
            'label' => __('Steak Weight', 'woocommerce' ),
            'description' => __( 'If necessary, enable steak weight selection', 'woocommerce' )
        )
    );
}
add_action('woocommerce_product_options_general_product_data', 'steak_custom_field_add', 10, 0 );

// Save Custom Checkbox Field
function steak_custom_field_save( $post_id ) {
    $product = wc_get_product( $post_id );

    // Custom Product Checkbox Field
    $steak_checkbox = isset( $_POST['_steak_checkbox'] ) ? 'yes' : 'no';

    // Update product meta
    $product->update_meta_data( '_steak_checkbox', $steak_checkbox );

    // Save
    $product->save();
}
add_action('woocommerce_process_product_meta', 'steak_custom_field_save', 10, 1 );

// Display Custom Select Box
function display_steak_custom_field() {
    global $post;

    // Get product
    $product = wc_get_product( $post->ID );

    // If is single product page and have the "steak_checkbox" enabled we display the field
    if ( $product->get_meta( '_steak_checkbox' ) === 'yes' ) {

        echo '<div class="steak_select_box">';

        $select = woocommerce_form_field( 'steak_custom_options', array(
            'type'          => 'select',
            'class'         => array('my-steak-select-box form-row-wide'),
            'label'         => __('Steak Weight'),
            'required'      => false,
            'return'       => false,
            'options'   => array(
                ''      => 'Select...',
                '300g'  => '300g',
                '400g'  => '400g',
                '500g'  => '500g',
                '600g'  => '600g',
                '700g'  => '700g',
                '800g'  => '800g',
                '900g'  => '900g',
                '1000g'  => '1000g'
            )
        ), '' );
        echo $select;
        echo '</div>';
    }
}
add_action( 'woocommerce_before_add_to_cart_button', 'display_steak_custom_field', 10, 0 );

// Add jQuery script to footer - change price on single product page
function add_footer_steak_script() {
    // Returns true on a single product page
    if ( is_product() ) {
        global $woocommerce, $product;
        ?>
        <script type="text/javascript">
            jQuery(document).ready(function ($) {
                var price = <?php echo $product->get_price(); ?>, currency = '<?php echo get_woocommerce_currency_symbol(); ?>';

                $( '[name=steak_custom_options]' ).change(function(){
                    if (!(this.value < 1)) {
                        var dropdown_val = this.value;
                        var remove_g = dropdown_val.replace( 'g', '' );
                        var remove_double_zero = remove_g.replace( '00', '' );

                        var product_total = parseFloat( price * remove_double_zero );

                        $( '.woocommerce-Price-amount' ).html( currency + product_total.toFixed(2));

                    }
                });
            });
        </script>
        <?php
    }
}
add_action('wp_footer','add_footer_steak_script', 10, 0 );

// Add as custom cart item data
function add_custom_steak_cart_item_data( $cart_item_data, $product_id, $variation_id, $quantity ) {    
    if ( !empty( $_POST['steak_custom_options'] ) && $product_id != 5737 ) {
        $cart_item_data['steak_option'] = $_POST['steak_custom_options'];
    }

    return $cart_item_data;
}
add_filter( 'woocommerce_add_cart_item_data', 'add_custom_steak_cart_item_data', 10, 4 );

// Add custom fields values under cart item name in cart
function steak_custom_field_add_cart( $item_name, $cart_item, $cart_item_key ) {    
    if( is_cart() ) {
        if( isset( $cart_item['steak_option'] ) ) {
            $item_name .= '<div class="my-steak-class"><strong>' . __("Steak Weight", "woocommerce") . ':</strong> ' . $cart_item['steak_option'] . '</div>';
        }
    }

    return $item_name;
}
add_filter( 'woocommerce_cart_item_name', 'steak_custom_field_add_cart', 10, 3 );

/**
 * Calculate the number of lunchboxes and package, based on the number of products in cart.
 */
function add_delivery_charge_to_cart( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

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

    /********** SETTINGS **********/

    $lunchbox_id  = 5737; // "LunchBox ID" to be added to cart
    $pakket_id = 5738; // "Pakket ID" to be added to cart
    $exclude_categories = array( 'drink', 'bread' ); // Exclude these categories

    $category_qty_total = 0; // Total of category quantity items, Don't edit!!

    /********** LOOP THROUGH CART ITEMS **********/

    foreach ( $cart->get_cart() as $cart_item_key => $cart_item ) {     
        // Get product id
        $product_id = $cart_item['data']->get_id();

        // Get product quantity
        $product_qty = $cart_item['quantity'];

        // Check if "LunchBox" product is already in cart
        if( $product_id == $lunchbox_id ) {
            $lunchbox_key = $cart_item_key;
            $lunchbox_qty = $product_qty;
        }

        // Check if "Pakket" product is already in cart
        if( $product_id == $pakket_id ) {
            $pakket_key = $cart_item_key;
            $pakket_qty = $product_qty;
        }

        // Check if product belongs to a certain category
        if( has_term( $exclude_categories, 'product_cat', $product_id ) ) {
            $category_qty_total += $product_qty;
        }

        // Check if product, contains steak weight
        if( isset( $cart_item['steak_option'] ) ) {
            // Remove the last 2 zeros (100g becomes 1, 300g becomes 3, 1000g becomes 10, etc...)
            // Remove 'g' from grams
            // convert string to integer
            $chosen_weight = (int) str_replace( '00', '', str_replace('g', '', $cart_item['steak_option']) );

            // Get current price
            $current_price = $cart_item['data']->get_price();

            // Set new price, price is already known per 100g
            $cart_item['data']->set_price( $current_price * $chosen_weight );
        }
    }

    /********** CALCULATE THE TOTALS, SO "LUNCHBOX", "PAKKET" & CATEGORIES ARE NOT USED IN THE TOTALS **********/

    // Get total items in cart, counts number of products & quantity per product
    $total_items_in_cart = $cart->get_cart_contents_count();

    // Total items in cart - category quantity total
    $total_items_in_cart -= $category_qty_total;

    // Lunchbox total = total_items_in_cart & pakket total = total_items_in_cart 
    $lunchbox_total = $total_items_in_cart;
    $pakket_total = $total_items_in_cart;

    // Isset lunchbox qty -> lunchbox total - lunchbox qty & pakket total - lunchbox qty
    if ( isset($lunchbox_qty) ) {
        $lunchbox_total -= $lunchbox_qty;
        $pakket_total -= $lunchbox_qty;     
    }

    // Isset pakket qty -> lunchbox total - pakket qty & pakket total - pakket qty   
    if ( isset($pakket_qty) ) {
        $lunchbox_total -= $pakket_qty;
        $pakket_total = $pakket_total - $pakket_qty;
    }

    /********** APPLY NEW TOTALS TO LUNCHBOX & PAKKET **********/

    // If product "LunchBox" is in cart, we check the quantity to update it if needed
    if ( isset($lunchbox_key) && $lunchbox_qty != $total_items_in_cart ) {
        // Set quantity, lunchbox
        $cart->set_quantity( $lunchbox_key, $lunchbox_total );

    } elseif ( !isset($lunchbox_key) && $total_items_in_cart > 0 ) {
        // Product "LunchBox" is not in cart, we add it
        $cart->add_to_cart( $lunchbox_id, $total_items_in_cart );
    }

    // Total items in cart greater than or equal to 3
    if ( $total_items_in_cart >= 3 ) {
        // Pakket total = pakket_total / 3 = floor(result)
        // Floor = round fractions down, rounding result down
        $pakket_total = floor( $pakket_total / 3 );

        // If product "Pakket" is in cart
        if ( isset($pakket_key) ) {
            // Set quantity, pakket
            $cart->set_quantity( $pakket_key, $pakket_total );

        } elseif ( !isset($pakket_key) ) {
            // Product "Pakket" is not in cart, we add it
            $cart->add_to_cart( $pakket_id, $pakket_total );
        }
    }
}
add_action( 'woocommerce_before_calculate_totals', 'add_delivery_charge_to_cart', 10, 1 );

// Display custom fields values under item name in checkout
function steak_custom_checkout_cart_item_name( $item_qty, $cart_item, $cart_item_key ) {    
    if( isset($cart_item['steak_option']) ) {
        $item_qty .= '<div class="my-steak-class"><strong>' . __("Steak Weight", "woocommerce") . ':</strong> ' . $cart_item['steak_option'] . 'гр.</div>';
    }
    return $item_qty;
}
add_filter( 'woocommerce_checkout_cart_item_quantity', 'steak_custom_checkout_cart_item_name', 10, 3 );

// Save chosen select field value to each order item as custom meta data and display it everywhere
function save_order_item_steak_field( $item, $cart_item_key, $values, $order ) {
    if( isset($values['steak_option']) ) {
        $key = __('Steak Weight', 'woocommerce');
        $value = $values['steak_option'];
        $item->update_meta_data( $key, $value ,$item->get_id());
    }
}
add_action('woocommerce_checkout_create_order_line_item', 'save_order_item_steak_field', 10, 4 );

关于php - 如果在 WooCommerce 中自动添加包装，则在选择产品重量时不计算最终成本，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60868982/

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css 悬停替代(自动)
我的 CSS 必须使用过渡来更改，直到现在我都使用 div:hover 来实现。当您单击另一个 div 时需要激活过渡，而不是当您将鼠标悬停在必须移动/更改的 div 上时。我该怎么做？谢谢永
快速动画持续时间，即使我不想(自动？)
在我的应用程序中，我需要一些动画，但如果它已经设置了动画，则不需要持续时间。但我的问题是它会自动添加持续时间。在这里你可以看到 2 个函数，第二个没有持续时间但它确实有持续时间(可能从 1 秒开始)
php - 自动 uploader
两年前，我需要制作一个工具，通过 POST 自动将 txt/csv 文件上传到我的 Web 服务器，然后使用 cronjob 通过 PHP 对其进行解析。这有两次在每天午夜自动发生。尽管这行得通，但
c - 函数参数中的数组名称的处理方式是否与本地声明的数组不同(自动)
请阅读下面程序中的评论: #include void test(char c[]) { c=c+2; //why does this work ? c--; printf("%
c++ - 自动/静态内存分配
也许是个幼稚的问题，但是...... 确认或拒绝: 自动和静态存储持续时间的对象/变量的内存的存在是在编译时确定的，程序运行时失败的可能性绝对为零，因为没有足够的内存用于自动对象。自然地，当自动对象
c# - 自动 INotifyPropertyChanged
有没有什么方法可以自动获得类中属性更改的通知，而不必在每个 setter 中都编写 OnPropertyChanged？ (我有数百个属性，我想知道它们是否已更改)。安东建议 dynamic pro
azure-pipelines - 基于源分支的不同合并策略(自动)
我们在使用 Azure DevOps 的项目中采用了 gitflow 流程。我有以下场景: 当功能分支合并到 Develop 时，我想在完成拉取请求的同时执行压缩合并策略当 Release 分支定期
AngularJS 自动 HTML 编码符号
我的网站上有一个评论部分，我将 html 编码的评论保存在我的数据库中。所以我添加了这条评论- "testing" `quotes` \and backslashes\ and html 并将其保存在
签到前 TFS 自动 checkout
是否存在“ checkin 前 TFS 自动 checkout ”这样的功能，以便在我说“ checkin ”之前我不会 checkout 任何文件，例如以防我只是临时更改文件 - 这一直发生。换句
apache - 自动 Apache 服务器维护页面
我有一个运行在 Linux/Apache/Tomcat 堆栈上的网站，它需要每隔几个月自动脱机以进行服务器维护，这将持续任意时间。有哪些选项可以让 Apache 建立和取消“服务器维护”页面？我需要
vba - 自动 Excel 首字母缩写词查找和定义添加
我经常在工作中创建文档，在公司内部，由于我们使用的首字母缩写词和缩写词的数量，我们几乎拥有自己的语言。因此，我厌倦了在发布文档之前手动创建首字母缩写词和缩写表，并且快速的谷歌搜索发现了一个可以有效地为
Excel:是否存在检测计算模式变化的事件(自动/手动)
我希望在用户或宏将计算模式从自动更改为手动或手动更改为自动时运行代码。是否有为此触发的事件？ (属性是 Application.Calculation 在 Excel 互操作中。) 使用 Excel
bash - 自动 Bash 脚本
这个问题在这里已经有了答案: Repeat command automatically in Linux (13 个回答) 6年前关闭。我想创建一个脚本来获取另一个文件夹中的所有文件夹名称。并为这些

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php - 如果在 WooCommerce 中自动添加包装，则在选择产品重量时不计算最终成本