在WooCommerce中将自定义字段添加为购物车项目元和订单项目元 [英] Add custom fields as cart item meta and order item meta in WooCommerce

问题描述

这是一个有关如何添加添加购物车项目元&的插件.我的WooCommerce订单的订单商品元.最初，我的以下代码在输入type = text上运行良好.它返回值的标签和输入的值.

This is a plugin on how to add add cart item meta & order item meta for my WooCommerce order. Initially my code below worked well for input type=text. It returns the label for value and the inputed value.

在转换为type=checkbox时，代码为被检查的代码返回label和value="on".

On conversion to type=checkbox the code returns label and value="on" for those that are checked.

我只想返回已检查值的值名称(忽略未检查的值).

I would like to return the only value names of checked values (ignore the values unchecked).

重构以包括更多复选框选项将有助于减少书面代码.

A refactor to help include more checkboxes options would be helpful to reduce written code.

我的代码:

<?php
    global $woocommerce, $product, $post;

        add_action( 'woocommerce_before_add_to_cart_button', 'add_fields_before_add_to_cart' );

        function add_fields_before_add_to_cart( ) {
            ?>

            <div class="simple-selects">
                <div class="col-md-6">
                    <h3>Main meals</h3>
                    <p><input type="checkbox" name="mm_chicken_cutlet_bento" id="mm_chicken_cutlet_bento"><?php _e( "Chicken Cutlet Bento", "aoim"); ?></p>
                    <p><input type="checkbox" name="mm_roasted_pork_rib_bento" id="mm_roasted_pork_rib_bento"><?php _e( "Roasted Pork Rib Bento", "aoim"); ?></p>
                </div>
            </div>        

            <?php
        }

        /**
         * Add data to cart item
         */
        add_filter( 'woocommerce_add_cart_item_data', 'add_cart_item_data', 25, 2 );
        function add_cart_item_data( $cart_item_meta, $product_id ) {

            if ( isset( $_POST ['mm_chicken_cutlet_bento'] ) && isset( $_POST ['mm_roasted_pork_rib_bento'] ) ) {
                $custom_data  = array() ;
                $custom_data [ 'mm_chicken_cutlet_bento' ]    = isset( $_POST ['mm_chicken_cutlet_bento'] ) ?  sanitize_text_field ( $_POST ['mm_chicken_cutlet_bento'] ) : "" ;
                $custom_data [ 'mm_roasted_pork_rib_bento' ] = isset( $_POST ['mm_roasted_pork_rib_bento'] ) ? sanitize_text_field ( $_POST ['mm_roasted_pork_rib_bento'] ): "" ;
                $cart_item_meta ['custom_data']     = $custom_data ;
            }

            return $cart_item_meta;
        }

        /**
         * Display custom data on cart and checkout page.
         */
        add_filter( 'woocommerce_get_item_data', 'get_item_data' , 25, 2 );
        function get_item_data ( $other_data, $cart_item ) {
            if ( isset( $cart_item [ 'custom_data' ] ) ) {
                $custom_data  = $cart_item [ 'custom_data' ];

                $other_data[] = array( 'name' => 'Chicken Cutlet Bento', 'display'  => $custom_data['mm_chicken_cutlet_bento'] );
                $other_data[] = array( 'name' => 'Roasted Pork Rib Bento', 'display'  => $custom_data['mm_roasted_pork_rib_bento'] );
            }

            return $other_data;
        }

        /**
         * Add order item meta.
         */
        add_action( 'woocommerce_add_order_item_meta', 'add_order_item_meta' , 10, 2);
        function add_order_item_meta ( $item_id, $values ) {
            if ( isset( $values [ 'custom_data' ] ) ) {
                $custom_data  = $values [ 'custom_data' ];
                wc_add_order_item_meta( $item_id, 'Chicken Cutlet Bento', $custom_data['mm_chicken_cutlet_bento'] );
                wc_add_order_item_meta( $item_id, 'Roasted Pork Rib Bento', $custom_data['mm_roasted_pork_rib_bento'] );
            }
        }

?>

推荐答案

更新 (与评论有关):

• 将功能限制为仅一个产品ID
• 将所有复选框的值添加为逗号分隔的字符串

要轻松获取复选框的标签名称作为值并重构以帮助包括更多复选框选项，将有助于减少书面代码".我添加了一个简单的功能，您可以在其中设置要显示和处理的每个复选框的键/值对……

To get easily the label names of your checkboxes as values and to "refactor to help include more checkboxes options would be helpful to reduce written code" I have added a simple function where you will set the key/value pairs for each checkbox you want to display and process…

因此，我重新审视了您的所有代码:

So I have revisited all your code:

// HERE set the array of pairs keys/values for your checkboxes
function custom_checkboxes(){
    return array(
        'mm_chicken_cutlet_bento'       => __( "Chicken Cutlet Bento", "aoim"),
        'mm_roasted_pork_rib_bento'     => __( "Roasted Pork Rib Bento", "aoim"),
    );
}

// Displaying the checkboxes
add_action( 'woocommerce_before_add_to_cart_button', 'add_fields_before_add_to_cart' );
function add_fields_before_add_to_cart( ) {
    global $product;
    if( $product->get_id() != 2 ) return; // Only for product ID "2"

    ?>
    <div class="simple-selects">
        <div class="col-md-6">
            <h3><?php _e("Main meals", "aoim"); ?></h3>
            <?php foreach( custom_checkboxes() as $key => $value ): ?>
                <p><input type="checkbox" name="<?php echo $key; ?>" id="<?php echo $key; ?>"><?php echo ' ' . $value; ?></p>
            <?php endforeach; ?>
        </div>
    </div>
    <?php
}


// Add data to cart item
add_filter( 'woocommerce_add_cart_item_data', 'add_cart_item_data', 25, 2 );
function add_cart_item_data( $cart_item_data, $product_id ) {
    if( $product_id != 2 ) return $cart_item_data; // Only for product ID "2"

    // Set the data for the cart item in cart object
    $data = array() ;

    foreach( custom_checkboxes() as $key => $value ){
        if( isset( $_POST[$key] ) )
            $cart_item_data['custom_data'][$key] = $data[$key] = $value;
    }
    // Add the data to session and generate a unique ID
    if( count($data > 0 ) ){
        $cart_item_data['custom_data']['unique_key'] = md5( microtime().rand() );
        WC()->session->set( 'custom_data', $data );
    }
    return $cart_item_data;
}


// Display custom data on cart and checkout page.
add_filter( 'woocommerce_get_item_data', 'get_item_data' , 25, 2 );
function get_item_data ( $cart_data, $cart_item ) {
    if( $cart_item['product_id'] != 2 ) return $cart_data; // Only for product ID "2"

    if( ! empty( $cart_item['custom_data'] ) ){
        $values =  array();
        foreach( $cart_item['custom_data'] as $key => $value )
            if( $key != 'unique_key' ){
                $values[] = $value;
            }
        $values = implode( ', ', $values );
        $cart_data[] = array(
            'name'    => __( "Option", "aoim"),
            'display' => $values
        );
    }

    return $cart_data;
}

// Add order item meta.
add_action( 'woocommerce_add_order_item_meta', 'add_order_item_meta' , 10, 3 );
function add_order_item_meta ( $item_id, $cart_item, $cart_item_key ) {
    if ( isset( $cart_item[ 'custom_data' ] ) ) {
        $values =  array();
        foreach( $cart_item[ 'custom_data' ] as $key => $value )
            if( $key != 'unique_key' ){
                $values[] = $value;
            }
        $values = implode( ', ', $values );
        wc_add_order_item_meta( $item_id, __( "Option", "aoim"), $values );
    }
}

此代码会出现在您活动的子主题(或主题)的function.php文件中，也可能会出现在任何插件文件中.

经过测试，可以正常工作.

Tested and works.

您将获得以下内容:

我添加了"Option"作为标签，以避免重复值…

I have added "Option", as label to avoid the value repetition…

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