将复选框添加到变体产品管理元 woocommerce [重复]

Question

恭敬地不得不再次提出这个问题，因为它已关闭并链接到一个对我的问题几乎没有参考并且更多关于字段创建的问题。

如何将自定义字段（多个复选框）添加到产品管理中的 WooCommerce 变量产品作为复选框，仅在选中时添加元数据并仅保存为管理员？

请理解添加字段已完成，但问题与我需要复选框仅在选中时添加元以及如何隐藏元而不是创建该部分的字段有关。

此显示代码在我的变体中运行良好

add_action( 'woocommerce_product_after_variable_attributes', 'variation_settings_fields', 10, 3 );
    
    function variation_settings_fields( $loop, $variation_data, $variation ) {
        woocommerce_wp_text_input(
          array(
              'id'            => "bin_location{$loop}",
              'name'          => "bin_location[{$loop}]",
              'value'         => get_post_meta( $variation->ID, 'bin_location', true ),
              'label'         => __( 'Bin Location', 'woocommerce' ),
              'desc_tip'      => true,
              'description'   => __( 'Some description.', 'woocommerce' ),
              'wrapper_class' => 'form-row form-row-full',
          )
        );
        woocommerce_wp_checkbox(
          array(
            'id'            => "licence_mcps{$loop}",
            'name'          => "licence_mcps[{$loop}]",
            'value'         => get_post_meta( $variation->ID, 'licence_mcps', true ),
            'label'         => __( 'MCPS', 'woocommerce' ),
            'desc_tip'    => true,
            'description' => __( "MCPS Product", "woocommerce" )
          )
        );
        woocommerce_wp_checkbox(
          array(
            'id'            => "licence_ppl{$loop}",
            'name'          => "licence_ppl[{$loop}]",
            'value'         => get_post_meta( $variation->ID, 'licence_ppl', true ),
            'label'         => __( 'PPL', 'woocommerce' ),
            'desc_tip'    => true,
            'description' => __( "PPL Product", "woocommerce" )
          )
        );
      }

此代码起作用，但如果选中是，则希望复选框仅添加元，是否可以仅在选中复选框时添加元

    add_action( 'woocommerce_save_product_variation', 'save_variation_settings_fields', 10, 2 );
    function save_variation_settings_fields( $variation_id, $loop ) {
    $bin_loc = $_POST['bin_location'][ $loop ];
    $mcps_prod = $_POST['licence_mcps'][ $loop ];
    $ppl_prod = $_POST['licence_ppl'][ $loop ];
   
    if( isset( $bin_loc ) ) 
        update_post_meta( $variation_id, 'bin_location', esc_attr( $bin_loc )); 
  
    $mcps_checkbox = isset( $mcps_prod ) ? 'yes' : ' ';
     update_post_meta( $variation_id, 'licence_mcps', $mcps_checkbox );

    $ppl_checkbox  = isset( $ppl_prod ) ? 'yes' : ' ';
     update_post_meta( $variation_id, 'licence_ppl', $ppl_checkbox );
     
}

这并没有隐藏元数据我如何隐藏这个除了为了管理员

add_action('woocommerce_checkout_create_order_line_item', 'save_file_type_as_order_item_meta', 20, 4);
function save_file_type_as_order_item_meta($item, $cart_item_key, $values, $order) {
    if ( $licence_mcps = $values['data']->get_meta('licence_mcps') ) {
        $item->update_meta_data( 'licence_mcps', $licence_mcps ); 
    }
    if ( $bin_location = $values['data']->get_meta('bin_location') ) {
      $item->update_meta_data( 'bin_location', $bin_location ); 
    }
    if ( $licence_ppl = $values['data']->get_meta('licence_ppl') ) {
      $item->update_meta_data( 'licence_ppl', $licence_ppl ); 
    }
}

Answer 1

更正复选框 这已通过在复选框中添加 if-else 来解决

add_action( 'woocommerce_save_product_variation', 'save_variation_settings_fields', 10, 2 );
function save_variation_settings_fields( $variation_id, $loop ) {
    $bin_loc = $_POST['bin_location'][ $loop ];
    $mcps_prod = $_POST['licence_mcps'][ $loop ];
    $ppl_prod = $_POST['licence_ppl'][ $loop ];
   
    if( isset( $bin_loc ) ) 
        update_post_meta( $variation_id, 'bin_location', esc_attr( $bin_loc )); 

    If( isset($mcps_prod)){
      update_post_meta( $variation_id, 'licence_mcps', esc_attr( $mcps_prod )); 
      }else{
        update_post_meta( $variation_id, 'licence_mcps', false );
      }
    If( isset($ppl_prod)){
      update_post_meta( $variation_id, 'licence_ppl', esc_attr( $ppl_prod )); 
      }else{
        update_post_meta( $variation_id, 'licence_ppl', false );
      }
     
}

通过向元键添加下划线解决了隐藏元数据

add_action('woocommerce_checkout_create_order_line_item', 'save_file_type_as_order_item_meta', 20, 4);
function save_file_type_as_order_item_meta($item, $cart_item_key, $values, $order) {
    if ( $licence_mcps = $values['data']->get_meta('licence_mcps') ) {
        $item->update_meta_data( '_licence_mcps', $licence_mcps ); 
    }
    if ( $bin_location = $values['data']->get_meta('bin_location') ) {
      $item->update_meta_data( '_bin_location', $bin_location ); 
    }
    if ( $licence_ppl = $values['data']->get_meta('licence_ppl') ) {
      $item->update_meta_data( '_licence_ppl', $licence_ppl ); 
    }
}