php - 在后端产品选项卡中检索自定义字段的标签名称

Question

下面是带有自定义字段、自定义选项卡及其内容的 WooCommerce 自定义产品:

我正在对该选项卡的第一个文本字段进行采样。 目标是获取这些字段的“标签”属性。

function launch_product_tab_content() {
    global $post;
    ?><div id='launch_contents' class='panel woocommerce_options_panel'><?php
        ?><div class='options_group'><?php
            woocommerce_wp_text_input( array(
                'id'            => '_text_announced',
                'label'         => __( 'Announced(Global)', 'woocommerce' ),
                'desc_tip'      => 'true',
                'description'   => __( 'Year and Month it was announced global', 'woocommerce' ),
                'type'          => 'text',
            ) );

            woocommerce_wp_text_input( array(
                'id'            => '_text_announced_ph',
                'label'         => __( 'Announced(Philippines)', 'woocommerce' ),
                'desc_tip'      => 'true',  
                'description'   => __( 'Year and Month it was announced global', 'woocommerce' ),
                'type'          => 'text',
            ) );

            woocommerce_wp_text_input( array(
                'id'            => '_text_availability_ph',
                'label'         => __( 'Availability(Philippines)', 'woocommerce'),
                'desc_tip'      => 'true',
                'description'   => __( 'Schedule date of availability in the Philippines', 'woocommerce' ),
                'type'          => 'text',
            ) );
        ?></div>
    </div><?php
}
add_action( 'woocommerce_product_data_panels', 'launch_product_tab_content' );

这是产品编辑器页面的样子，Wordpress 的自定义产品:

现在，使用 ACF，我使用了这段代码:

<?php
    $field_key = "_text_announced";
    $post_id = $post->ID;
    $field = get_field_object($field_key, $post_id);
echo $field['label'] . ': ' . $field['value'];


                        ?>

还尝试了 echo var_dump($field);

有人说 WooCommerce 项目没有绑定(bind) ACF 对象？这就是我无法通过 ACF 访问 WooCommerce 对象的原因？你的想法。

谢谢!

Answer 1

UPDATE (A WORKIG SOLUTION TO SAVE AND RETRIEVE YOUR LABELS NAMES)

我对您的代码进行了一些更改添加带有标签名称的隐藏输入字段。保存/提交数据时，它还会自动保存标签名称。

完整代码如下:

// ADDING A TAB TO WOOCOMMERCE PRODUCT DATA METABOX
add_filter( 'woocommerce_product_data_tabs', 'launch_product_tab_content_tab' , 99 , 1 );
function launch_product_tab_content_tab( $product_data_tabs ) {
    $product_data_tabs['launch'] = array(
        'label' => __( 'Launch', 'my_text_domain' ),
        'target' => 'launch_contents',
    );
    return $product_data_tabs;
}

// ADDING A FIELDS INSIDE THE TAB IN WOOCOMMERCE PRODUCT DATA METABOX
add_action( 'woocommerce_product_data_panels', 'launch_product_tab_content' );
function launch_product_tab_content() {
    global $woocommerce, $post;

    // Setting here your labels
    $label_text_announced       = __( 'Announced(Global)', 'woocommerce' );
    $label_text_announced_ph    = __( 'Announced(Philippines)', 'woocommerce' );
    $label_text_availability_ph = __( 'Availability(Philippines)', 'woocommerce' );

    ?>
    <div id='launch_contents' class='panel woocommerce_options_panel'>
        <div class='options_group'>
    <?php

        woocommerce_wp_text_input( array(
            'id'            => '_text_announced',
            'label'         => $label_text_announced,
            'desc_tip'      => 'true',
            'description'   => __( 'Year and Month it was announced global', 'woocommerce' ),
            'type'          => 'text',
        ) );

        woocommerce_wp_text_input( array(
            'id'            => '_text_announced_ph',
            'label'         => $label_text_announced_ph,
            'desc_tip'      => 'true',
            'description'   => __( 'Year and Month it was announced global', 'woocommerce' ),
            'type'          => 'text',
        ) );

        woocommerce_wp_text_input( array(
            'id'            => '_text_availability_ph',
            'label'         => $label_text_availability_ph,
            'desc_tip'      => 'true',
            'description'   => __( 'Schedule date of availability in the Philippines', 'woocommerce' ),
            'type'          => 'text',
        ) );

        // Addind hidden imputs fields for your labels
        echo '<input type="hidden" id="text_announced_label" name="text_announced_label" value="'.$label_text_announced.'" />
        <input type="hidden" id="text_announced_ph_label" name="text_announced_ph_label" value="'.$label_text_announced_ph.'" />
        <input type="hidden" id="text_availability_ph_label" name="text_availability_ph_label" value="'.$label_text_availability_ph.'" />';

    ?>
        </div>
    </div>
    <?php
}

// SAVING THE FIELDS DATA from THE TAB IN WOOCOMMERCE PRODUCT DATA METABOX
add_action( 'woocommerce_process_product_meta', 'save_launch_product_tab_content' );
function save_launch_product_tab_content( $post_id ){

    // Saving the data with the hidden data labels names

    if(isset($_POST['_text_announced'])){
        update_post_meta( $post_id, '_text_announced', $_POST['_text_announced'] );
        update_post_meta( $post_id, '_text_announced_label', $_POST['text_announced_label'] );
    }

    if(isset($_POST['_text_announced_ph'])){
        update_post_meta( $post_id, '_text_announced_ph', $_POST['_text_announced_ph'] );
        update_post_meta( $post_id, '_text_announced_ph_label', $_POST['text_announced_ph_label'] );
    }

    if(isset($_POST['_text_availability_ph'])){
        update_post_meta( $post_id, '_text_availability_ph', $_POST['_text_availability_ph'] );
        update_post_meta( $post_id, '_text_availability_ph_label', $_POST['text_availability_ph_label'] );
    }

}

代码位于您的事件子主题(或主题)的 function.php 文件中或任何插件文件中。

提交后(已保存) 所有数据都设置在当前产品 ID 的 wp_postmeta 表中(甚至是标签名称)，请参阅下面是你在这个数据库表中得到的(这里的产品 ID 是 99):

So now you can get your label name and the corresponding data value…

这里有一个函数可以自动执行该过程并将这些值设置在一个数组中:

function get_label_and_value($product_id, $meta_key){
    // As the meta_key of the label have the same slug + '_label' we get it here
    $key_label = $meta_key . '_label';
    
    // Getting the values
    $meta_value = get_post_meta($product_id, $meta_key, true);
    $label_name = get_post_meta($product_id, $key_label, true);

    // Setting this data in an array:
    $result = array('label' => $label_name, 'value' => $meta_value);

    // Returning the data array
    return $result;
}

代码位于您的事件子主题(或主题)的 function.php 文件中或任何插件文件中。

现在我们可以在任何 PHP 文件中使用这个函数:

<?php
    // The product ID
    $product_id = $product_id;

    // The field key
    $field_key = "_text_announced";

    // Using our function
    $field1 = get_label_and_value($product_id, $field_key);

    // Displaying the data (just as you expected to do)
    echo $field1['label'] . ': ' . $field1['value'];

?>

你会得到:

Announced(Global): April 2016

所以这里不需要ACF

此代码已经过测试并且可以工作...