将自定义字段添加到产品库存选项卡，并在 WooCommerce 中的单个产品和商店存档页面上显示价值

Question

我认为这是一个非常简单的修复 - 但每次我放入钩子时 - 我都会收到 WordPress 严重错误，我不知道我做错了什么 - Hooks 新手，所以请原谅我.

我试图只打印我在后端保存的值，以传递到前端。有什么建议吗？

此代码在 functions.php:

//Custom Colour Text Box

add_action( 'woocommerce_product_options_inventory_product_data', 'wc_custom_add_custom_fields' );
function wc_custom_add_custom_fields() {
    // Print a custom text field
    woocommerce_wp_text_input( array(
        'id' => '_custom_text_field',
        'label' => 'Product Colour',
        'description' => 'This is where you put the colour of the product in.',
        'desc_tip' => 'true',
        'placeholder' => 'Custom Colour'
    ) );
}
add_action( 'woocommerce_process_product_meta', 'wc_custom_save_custom_fields' );
function wc_custom_save_custom_fields( $post_id ) {
    if ( ! empty( $_POST['_custom_text_field'] ) ) {
        update_post_meta( $post_id, '_custom_text_field', esc_attr( $_POST['_custom_text_field'] ) );
    }
}
add_action( 'woocommerce_after_shop_loop_item_title', 'custom_field_display_below_title', 2 );
function custom_field_display_below_title(){
    global $product;

    // Get the custom field value
    $custom_field = get_post_meta( $product->get_id(), '_custom_product_text_field', true );

    // Display
    if( ! empty($custom_field) ){
        echo '<p class="my-custom-field">'.$custom_field.'</p>';
    }
}

/**** Display on the Product Page ***/

add_action( 'woocommerce_single_product_summary', 'custom_text', 9 );
function custom_text() {
  print '<p class="my-custom-field"></p>';
}

Answer 1

我没有收到错误，我在这里和那里做了一些小改动。

if ( ! empty( $_POST[..只有当字段不为空时才会生效，如果什么都不填，将不会被保存。
get_post_meta( $product->get_id(), '_custom_product_text_field',... _custom_product_text_field 与 _custom_text_field
在woocommerce_single_product_summary你只打印文字，缺少相应的代码

//Custom Colour Text Box
add_action( 'woocommerce_product_options_inventory_product_data', 'wc_custom_add_custom_fields' );
function wc_custom_add_custom_fields() {
    // Print a custom text field
    woocommerce_wp_text_input( array(
        'id' => '_custom_text_field',
        'label' => 'Product Colour',
        'description' => 'This is where you put the colour of the product in.',
        'desc_tip' => 'true',
        'placeholder' => 'Custom Colour'
    ) );
}
add_action( 'woocommerce_process_product_meta', 'wc_custom_save_custom_fields', 10, 1 );
function wc_custom_save_custom_fields( $post_id ) {
    $product = wc_get_product( $post_id );

    $my_text_field = isset( $_POST['_custom_text_field'] ) ? $_POST['_custom_text_field'] : '';

    $product->update_meta_data( '_custom_text_field', sanitize_text_field( $my_text_field ) );
    $product->save();
}

add_action( 'woocommerce_after_shop_loop_item_title', 'custom_field_display_below_title' );
function custom_field_display_below_title() {
    global $post;

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

    // Check for the custom field value
    $my_text_field = $product->get_meta( '_custom_text_field' );

    // Display
    if( $my_text_field ) {
        echo '<p class="my-custom-field">' . $my_text_field . '</p>';
    }
}

/**** Display on the Product Page ***/
add_action( 'woocommerce_single_product_summary', 'custom_text' );
function custom_text() {
    global $post;

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

    // Check for the custom field value
    $my_text_field = $product->get_meta( '_custom_text_field' );

    // Display
    if( $my_text_field ) {
        echo '<p class="my-custom-field">' . $my_text_field . '</p>';
    }
}

将自定义字段添加到产品库存选项卡，并在 WooCommerce 中的单个产品和商店存档页面上显示价值

Add custom field to product inventory tab and display value on single product and shop archive pages in WooCommerce

wordpress

product

backend

woocommerce

hook-woocommerce