为WooCommerce管理订单上的自定义元键添加下拉过滤器

Question

我有以下自定义元键，它是在结帐时选择的复选框：

//1. ADD OPT IN OPTION IN CHECKOUT AND SAVE IN THE ORDER

// Add checkbox optin before T&Cs
add_action( 'woocommerce_checkout_before_terms_and_conditions', 'marketing_opting_field' );
function marketing_opting_field() {
    echo '<div id="marketing_opting_field">';
    woocommerce_form_field( 'marketing_opting', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __('Yes, sign me up'),
        'default'   => 1,
    ),  WC()->checkout->get_value( 'marketing_opting' ) );
    echo '</div>';
}

// Save the optin field in the order meta, when checkbox has been checked
add_action( 'woocommerce_checkout_update_order_meta', 'custom_checkout_field_update_order_meta', 10, 1 );
function custom_checkout_field_update_order_meta( $order_id ) {
    if ( ! empty( $_POST['marketing_opting'] ) )
        update_post_meta( $order_id, 'marketing_opting', $_POST['marketing_opting'] );
}

// Display the result of the checked optin in the order under billing address
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_field_on_order_edit_pages', 10, 1 );
function display_custom_field_on_order_edit_pages( $order ){
    $marketing_opting = get_post_meta( $order->get_id(), 'marketing_opting', true );
    if( $marketing_opting == 1 )
        echo '<p><strong>Has opted in for marketing purposes.</p>';
}

// 2. SHOW CUSTOM COLUMN FOR THE OPTIN OPTION

// Adding custom column title
add_filter( 'manage_edit-shop_order_columns', 'custom_shop_order_column', 12, 1 );
function custom_shop_order_column($columns)
{
    $action_column = $columns['order_actions'];
    unset($columns['order_actions']);
    //add the new column "Opt in"
    $columns['order_marketing'] = '<p align="center">Opted in?</p>'; // title
    $columns['order_actions'] = $action_column;
    return $columns;
}

// Add the data for each order
add_action( 'manage_shop_order_posts_custom_column' , 'custom_order_list_column_content', 10, 2 );
function custom_order_list_column_content( $column, $post_id ){
    $marketing_opting = get_post_meta( $post_id, 'marketing_opting', true );
    if( $marketing_opting == 1)
    switch($column){
        case 'order_marketing' : echo '<p align="center"><span class="dashicons dashicons-yes"></span><span style="color: #F21891; font-weight: 600;">Signed Up</span></p>';
        break;
    }
}

所以上面的工作正常，并显示在专栏的下面，但是我希望在管理栏中有一个过滤器，并且搜索Signed Up会得到所需的结果：

1. 该搜索无效，因为checked的复选框的值为1，并且无法识别其他单词。我在下面添加了，但是没有给出结果：

add_filter( 'woocommerce_shop_order_search_fields', 'marketing_search_fields', 10, 1 );
function marketing_search_fields( $meta_keys ){
    $meta_keys[] = 'marketing_opting';
    return $meta_keys;
}

2. 管理栏过滤器；我唯一能找到的相关文章都是关于订单状态的，而不是自定义元键的。我不确定如何正确添加它，我从下面开始，但是有明显的错误，我被卡住了。

add_filter( 'views_edit-shop_order' , 'marketing_opt_in_filter', 10, 1);
function marketing_opt_in_filter( $views ) {
    $marketing_opting = get_post_meta( $post_id, 'marketing_opting', true );
    if( $marketing_opting == 1)
    $query_string = admin_url( 'edit.php?post_type=shop_order' ) ;
    $query_string = add_query_arg( 'marketing_opting' , 'yes' , $query_string ) ;
    $views[ 'marketing_opting' ] = '<a href="' . esc_url( $query_string ) . '">Opted In (%s)</a>' ;
    return $views ;
}

Answer 1

我稍微回顾了一下您现有的代码，并为“ marketing optin”自定义字段添加了一个下拉过滤器：

//1. ADD OPT IN OPTION IN CHECKOUT AND SAVE IN THE ORDER

// Add checkbox optin before T&Cs
add_action( 'woocommerce_checkout_before_terms_and_conditions', 'marketing_opting_field' );
function marketing_opting_field() {
    echo '<div id="marketing_opting_field">';
    woocommerce_form_field( 'marketing_opting', array(
        'type'      => 'checkbox',
        'class'     => array('input-checkbox'),
        'label'     => __('Yes, sign me up'),
        'default'   => 1,
    ),  WC()->checkout->get_value( 'marketing_opting' ) );
    echo '</div>';
}

// Custom Checkout field validation
add_action('woocommerce_checkout_process', 'custom_checkout_field_validation');
function custom_checkout_field_validation() {
    if ( isset($_POST['marketing_opting']) ) {
        wc_add_notice( '<strong>'. __("Please select a value", "woocommerce") . '</strong> | '.$_POST['marketing_opting'], 'error' );
    }
}

// Save the optin field as custom order meta, when checkbox has been checked
add_action( 'woocommerce_checkout_create_order', 'action_checkout_update_order_meta', 10, 1 );
function action_checkout_update_order_meta( $order, $data ) {
    $bool = isset($_POST['marketing_opting']) && ! empty($_POST['marketing_opting']);

    $order->update_meta_data( '_marketing_opting', $bool ? 'yes' : 'no' );
}

// Save the optin field as custom user meta, when checkbox has been checked
add_action( 'woocommerce_checkout_update_customer', 'action_checkout_update_customer_meta', 10, 1 );
function action_checkout_update_customer_meta( $customer, $data ) {
    $bool = isset($_POST['marketing_opting']) && ! empty($_POST['marketing_opting']);

    $customer->update_meta_data( 'checkout_user_choice', $bool ? '1' : '' ); // to user meta
}

// Display the result of the checked optin in the order under billing address
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_custom_field_on_order_edit_pages', 10, 1 );
function display_custom_field_on_order_edit_pages( $order ){
    if( $order->get_meta( '_marketing_opting' ) === 'yes' )
        echo '<p><strong>Has opted in for marketing purposes.</p>';
}

// 2. SHOW CUSTOM COLUMN FOR THE OPTIN OPTION

// Adding custom column title
add_filter( 'manage_edit-shop_order_columns', 'custom_shop_order_column', 12, 1 );
function custom_shop_order_column($columns)
{
    $action_column = $columns['order_actions'];
    unset($columns['order_actions']);

    //add the new column "Opt in"
    $columns['order_marketing'] = '<div align="center">' .__("Opted in?") . '</div>'; // title
    $columns['order_actions'] = $action_column;

    return $columns;
}

// Add the data for each order
add_action( 'manage_shop_order_posts_custom_column' , 'custom_order_list_column_content', 10, 2 );
function custom_order_list_column_content( $column, $post_id ){
    global $post, $the_order;


    if ($column ==='order_marketing') { 
        $value = $the_order->get_meta( '_marketing_opting' );
        $label = $value === 'yes' ? __('Signed Up') : ucfirst($value);
        $color = $value === 'yes' ? 'color:#00cc00;' : 'color:#bbbbbb;';

        echo '<p align="center" style="'.$color.'"><span class="dashicons dashicons-'.$value.'"></span><span style="font-weight:600;">'.$label.'</span></p>';
    }
}

// 3. Make marketing optin meta searchable from search field (can't work very well for 'yes' or 'no' values!)

// Make a custom meta field searchable from the admin order list search field
add_filter( 'woocommerce_shop_order_search_fields', 'marketing_search_fields', 10, 1 );
function marketing_search_fields( $meta_keys ){
    $meta_keys[] = '_marketing_opting';
    return $meta_keys;
}

// 4. Add a dropdown filter to get orders by marketing optin meta value

// Add a dropdown to filter orders by Marketing optin
add_action( 'restrict_manage_posts', 'display_admin_shop_order_marketing_opting_filter' );
function display_admin_shop_order_marketing_opting_filter(){
    global $pagenow, $post_type;

    if( 'shop_order' === $post_type && 'edit.php' === $pagenow ) {
        $domain    = 'woocommerce';
        $current   = isset($_GET['filter_shop_order_marketing'])? $_GET['filter_shop_order_marketing'] : '';

        echo '<select name="filter_shop_order_marketing">
        <option value="">' . __('Filter Marketing optin', $domain) . '</option>';

        $options = ['yes' => __('Signed Up'), 'no' => __('No')];

        foreach ( $options as $key => $label ) {
            printf( '<option value="%s"%s>%s</option>', $key, 
                $key === $current ? '" selected="selected"' : '', $label );
        }
        echo '</select>';
    }
}

// Process the filter dropdown for orders by Marketing optin
add_filter( 'request', 'process_admin_shop_order_marketing_opting_filter', 99 );
function process_admin_shop_order_marketing_opting_filter( $vars ) {
    global $pagenow, $typenow;

    if ( $pagenow == 'edit.php' && isset( $_GET['filter_shop_order_marketing'] ) 
        && $_GET['filter_shop_order_marketing'] != '' && 'shop_order' === $typenow ) {
        $vars['meta_key']   = '_marketing_opting';
        $vars['meta_value'] = wc_clean( $_GET['filter_shop_order_marketing'] );
    }
    return $vars;
}

注意：我已将meta_key的顺序更改为_marketing_opting，下划线与大多数其他现有的metakey一样...

[我还添加了一个在用户元数据中注册该“ marketing optin”值的功能，因为它将通过WC()->checkout->get_value( 'marketing_opting' )上的结帐为已经下订单的客户进行缓存。

代码进入您的活动子主题（或活动主题）的function.php文件。经过测试和工作。