php - Woocommerce 单个产品自定义选项卡上显示的带有所见即所得字段的元框

Question

需要在单个产品页面上显示相关产品中的自定义字段。

我想在 Add New Product 中添加一个元框字段并在评论下的单个产品页面上的自定义选项卡上显示结果。我尝试使用代码，但页面上没有显示任何内容。添加额外的产品选项卡有助于我添加额外的信息。所以添加、保存和展示产品是我正在寻找的。

add_filter( 'add_meta_boxes', 'bhww_core_cpt_metaboxes' );

function bhww_core_cpt_metaboxes( $meta_boxes ) {

    //global $prefix;
    $prefix = '_bhww_'; // Prefix for all fields

    // Add metaboxes to the 'Product' CPT
    $meta_boxes[] = array(
        'id'         => 'bhww_woo_tabs_metabox',
        'title'      => 'Additional Product Information - <strong>Optional</strong>',
        'pages'      => array( 'product' ), // Which post type to associate with?
        'context'    => 'normal',
        'priority'   => 'default',
        'show_names' => true,                   
        'fields'     => array(
            array(
                'name'    => __( 'Ingredients', 'cmb' ),
                'desc'    => __( 'Anything you enter here will be displayed on the Ingredients tab.', 'cmb' ),
                'id'      => $prefix . 'ingredients_wysiwyg',
                'type'    => 'wysiwyg',
                'options' => array( 'textarea_rows' => 5, ),
            ),
            array(
                'name'    => __( 'Benefits', 'cmb' ),
                'desc'    => __( 'Anything you enter here will be displayed on the Benefits tab.', 'cmb' ),
                'id'      => $prefix . 'benefits_wysiwyg',
                'type'    => 'wysiwyg',
                'options' => array( 'textarea_rows' => 5, ),
            ),
        ),
    );

    return $meta_boxes;

}

/////////////////////////////////////////

add_filter( 'woocommerce_product_data_tabs', 'bhww_woo_extra_tabs' );

function bhww_woo_extra_tabs( $tabs1 ) {

    global $post;
    $product_ingredients = get_post_meta( $post->ID, '_bhww_ingredients_wysiwyg', true );
    $product_benefits    = get_post_meta( $post->ID, '_bhww_benefits_wysiwyg', true );

    if ( ! empty( $product_ingredients ) ) {

        $tabs1['ingredients_tab'] = array(
            'title'    => __( 'Ingredients', 'woocommerce' ),
            'priority' => 15,
            'callback' => 'bhww_woo_ingredients_tab_content'
        );

    }

    if ( ! empty( $product_benefits ) ) {

        $tabs1['benefits_tab'] = array(
            'title'    => __( 'Benefits', 'woocommerce' ),
            'priority' => 16,
            'callback' => 'bhww_woo_benefits_tab_content'
        );

    }

    return $tabs1;

}

function bhww_woo_ingredients_tab_content() {

    global $post;
    $product_ingredients = get_post_meta( $post->ID, '_bhww_ingredients_wysiwyg', true );

    if ( ! empty( $product_ingredients ) ) {

        echo '<h2>' . esc_html__( 'Product Ingredients', 'woocommerce' ) . '</h2>';

        // Updated to apply the_content filter to WYSIWYG content
        echo apply_filters( 'the_content', $product_ingredients );

    }

}

function bhww_woo_benefits_tab_content() {

    global $post;
    $product_benefits = get_post_meta( $post->ID, '_bhww_benefits_wysiwyg', true );

    if ( ! empty( $product_benefits ) ) {

        echo '<h2>' . esc_html__( 'Product Benefits', 'woocommerce' ) . '</h2>';

        // Updated to apply the_content filter to WYSIWYG content
        echo apply_filters( 'the_content', $product_benefits );

    }

}

Answer 1

这是在管理员编辑产品页面中添加 2 个自定义字段(编辑器所见即所得)并在前端单个产品页面自定义选项卡中显示值的方法:

## ---- 1. Backend ---- ##

// Adding a custom Meta container to admin products pages
add_action( 'add_meta_boxes', 'create_custom_meta_box' );
if ( ! function_exists( 'create_custom_meta_box' ) )
{
    function create_custom_meta_box()
    {
        add_meta_box(
            'custom_product_meta_box',
            __( 'Additional Product Information <em>(optional)</em>', 'cmb' ),
            'add_custom_content_meta_box',
            'product',
            'normal',
            'default'
        );
    }
}

//  Custom metabox content in admin product pages
if ( ! function_exists( 'add_custom_content_meta_box' ) ){
    function add_custom_content_meta_box( $post ){
        $prefix = '_bhww_'; // global $prefix;

        $ingredients = get_post_meta($post->ID, $prefix.'ingredients_wysiwyg', true) ? get_post_meta($post->ID, $prefix.'ingredients_wysiwyg', true) : '';
        $benefits = get_post_meta($post->ID, $prefix.'benefits_wysiwyg', true) ? get_post_meta($post->ID, $prefix.'benefits_wysiwyg', true) : '';
        $args['textarea_rows'] = 6;

        echo '<p>'.__( 'Ingredients', 'cmb' ).'</p>';
        wp_editor( $ingredients, 'ingredients_wysiwyg', $args );

        echo '<p>'.__( 'Benefits', 'cmb' ).'</p>';
        wp_editor( $benefits, 'benefits_wysiwyg', $args );

        echo '<input type="hidden" name="custom_product_field_nonce" value="' . wp_create_nonce() . '">';
    }
}



//Save the data of the Meta field
add_action( 'save_post', 'save_custom_content_meta_box', 10, 1 );
if ( ! function_exists( 'save_custom_content_meta_box' ) )
{

    function save_custom_content_meta_box( $post_id ) {
        $prefix = '_bhww_'; // global $prefix;

        // We need to verify this with the proper authorization (security stuff).

        // Check if our nonce is set.
        if ( ! isset( $_POST[ 'custom_product_field_nonce' ] ) ) {
            return $post_id;
        }
        $nonce = $_REQUEST[ 'custom_product_field_nonce' ];

        //Verify that the nonce is valid.
        if ( ! wp_verify_nonce( $nonce ) ) {
            return $post_id;
        }

        // If this is an autosave, our form has not been submitted, so we don't want to do anything.
        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
            return $post_id;
        }

        // Check the user's permissions.
        if ( 'product' == $_POST[ 'post_type' ] ){
            if ( ! current_user_can( 'edit_product', $post_id ) )
                return $post_id;
        } else {
            if ( ! current_user_can( 'edit_post', $post_id ) )
                return $post_id;
        }

        // Sanitize user input and update the meta field in the database.
        update_post_meta( $post_id, $prefix.'ingredients_wysiwyg', wp_kses_post($_POST[ 'ingredients_wysiwyg' ]) );
        update_post_meta( $post_id, $prefix.'benefits_wysiwyg', wp_kses_post($_POST[ 'benefits_wysiwyg' ]) );
    }
}

## ---- 2. Front-end ---- ##

// Create custom tabs in product single pages
add_filter( 'woocommerce_product_tabs', 'custom_product_tabs' );
function custom_product_tabs( $tabs ) {
    global $post;

    $product_ingredients = get_post_meta( $post->ID, '_bhww_ingredients_wysiwyg', true );
    $product_benefits    = get_post_meta( $post->ID, '_bhww_benefits_wysiwyg', true );

    if ( ! empty( $product_ingredients ) )
        $tabs['ingredients_tab'] = array(
            'title'    => __( 'Ingredients', 'woocommerce' ),
            'priority' => 45,
            'callback' => 'ingredients_product_tab_content'
        );

    if ( ! empty( $product_benefits ) )
        $tabs['benefits_tab'] = array(
            'title'    => __( 'Benefits', 'woocommerce' ),
            'priority' => 50,
            'callback' => 'benefits_product_tab_content'
        );

    return $tabs;
}

// Add content to custom tab in product single pages (1)
function ingredients_product_tab_content() {
    global $post;

    $product_ingredients = get_post_meta( $post->ID, '_bhww_ingredients_wysiwyg', true );

    if ( ! empty( $product_ingredients ) ) {
        echo '<h2>' . __( 'Product Ingredients', 'woocommerce' ) . '</h2>';

        // Updated to apply the_content filter to WYSIWYG content
        echo apply_filters( 'the_content', $product_ingredients );
    }
}

// Add content to custom tab in product single pages (2)
function benefits_product_tab_content() {
    global $post;

    $product_benefits = get_post_meta( $post->ID, '_bhww_benefits_wysiwyg', true );

    if ( ! empty( $product_benefits ) ) {
        echo '<h2>' . __( 'Product Benefits', 'woocommerce' ) . '</h2>';

        // Updated to apply the_content filter to WYSIWYG content
        echo apply_filters( 'the_content', $product_benefits );
    }
}

代码位于事件子主题(或主题)的 function.php 文件或任何插件文件中。

测试和工作。你会得到:

1)在后台:



2)在前端: