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我在预订网站的结帐页面上创建了自定义输入字段。输入字段的数量基于人数。我设法让它们显示在结帐表单上，对它们进行消毒并显示在订单管理面板中。输入字段是必需的，因此如果多个字段之一为空，则应出现错误 (wc_add_notice)。我怎样才能获得 te wc_add_notice？这是我的代码：

//* Add a new checkout field 
function ppp_filter_checkout_fields($fields){
    $fields['extra_fields'] = array(
    'participant_details' => array(
        'type' => 'participant_details',
        'required'      => true,
        'label' => __( 'Participant Details' )
        ),
    );

    return $fields;

}
add_filter( 'woocommerce_checkout_fields', 'ppp_filter_checkout_fields' );

//* Add the field to the checkout
function ppp_filter_checkout_field_group( $field, $key, $args, $value ){
    $op_cart_count = WC()->cart->get_cart_contents_count();

    $items = WC()->cart->get_cart();

    foreach($items as $item) { 
        $person = $item['booking']['_persons'][0];
    }

    if ($person > 1) {

        $html = '';

        $html .= "<h3>Deelnemers</h3>";

        for ( $i = 1; $i < $person; $i++) {
            $counter = $i + 1;

            $html .= "Deelnemer ". $counter . "<br>";

            $html .= woocommerce_form_field( "participant_details[$i][full_name]", array(
                "type" => "text",
                "return" => true,
                "value" => "",
                "required"      => true,
                "label" => __( "Naam" )
                )
            );
            $html .= woocommerce_form_field( "participant_details[$i][email_address]", array(
                "type" => "text",
                "return" => true,
                "value" => "",
                "required"      => true,
                "label" => __( "Emailadres" )
                )
            );

        }
        return $html;

    }
}
add_filter( 'woocommerce_form_field_participant_details', 'ppp_filter_checkout_field_group', 10, 4 );

//* display the extra field on the checkout form
function ppp_extra_checkout_fields(){ 

    $checkout = WC()->checkout();

    foreach ( $checkout->checkout_fields['extra_fields'] as $key => $field ) :

        woocommerce_form_field( $key, $field, $checkout->get_value( $key ) );

    endforeach;


}
add_action( 'woocommerce_checkout_after_customer_details' ,'ppp_extra_checkout_fields' );

//* Sanitize our custom field
function ppp_custom_process_checkout_field_participant_details( $posted ){

    $clean = array();

    foreach( $posted as $participant ){
        $details = ppp_custom_checkout_clean_participant_details( $participant );

        if( ! empty( $details ) ){
            $clean[] = $details;
        }
    }

    return $clean;
}
add_filter( 'woocommerce_process_checkout_participant_details_field', 'ppp_custom_process_checkout_field_participant_details' );

//*
function ppp_custom_checkout_clean_participant_details( $participant = array() ){
    $details = array();
    if( isset( $participant["full_name"] ) ){
        $details['full_name'] = sanitize_text_field( $participant["full_name"] );
    }
    if( isset( $participant["email_address"] ) ){
        $details['email_address'] = sanitize_text_field( $participant["email_address"] );
    }
    return $details;
}

//* Update_post_meta
function ppp_custom_checkout_field_update_order_meta( $order_id, $posted ){

    if( ! empty( $posted["participant_details"] ) ){
        update_post_meta( $order_id, "_participant_details", $posted["participant_details"] );
    } else {
        delete_post_meta( $order_id, "_participant_details" );
    }

}
add_action( 'woocommerce_checkout_update_order_meta', 'ppp_custom_checkout_field_update_order_meta', 10, 2 );

//* Display the extra data in the order admin panel
function ppp_display_order_data_in_admin( $order ){  

    $participant_details = get_post_meta( $order->id, "_participant_details", true ); 

    if( ! empty( $participant_details ) ) { 

        $participant_defaults = array(
                "full_name" => "",
                "email_address" => ""
            );

    ?>
    <div class="participant_data">
        <h4><?php _e( "Deelnemers Lijst", "prespersadprodukties" ); ?></h4>
        <?php 
            $i = 1;

            foreach( $participant_details as $participant ){

                $participant = wp_parse_args( $participant, $participant_defaults );

                echo "<p><strong>" . sprintf( __( "Deelnemer %s", "prespersadprodukties" ), $i+1  ) . "</strong>" . "<br/>";
                echo __( "Naam", "prespersadprodukties" ) . ' : ' . $participant["full_name"] . "<br/>";
                echo __( "Emailadres", "prespersadprodukties" ) . ' : ' . $participant["email_address"] . "<br/>";
                echo "</p>";

                $i++;

            }

         ?>
    </div>
<?php }
}
add_action( 'woocommerce_admin_order_data_after_order_details', 'ppp_display_order_data_in_admin' );
4

1 回答 1

1

更新

注意：您的代码仅在您的购物车中有一件独特的商品时才有效……如果您有 2 个不同的预订商品，它将仅处理最后添加的一项。

现在要进行验证，我们首先需要添加一个隐藏的输入字段，其中包含人数。所以我改变了你的第一个钩子函数：

// Add a new checkout field
add_filter( 'woocommerce_checkout_fields', 'ppp_filter_checkout_fields' );
function ppp_filter_checkout_fields($fields){

    $fields['extra_fields'] = array(
    'participant_details' => array(
        'type' => 'participant_details',
        'required'      => false,
        'label' => __( 'Participant Details' )
        ),
    );

    // Add a "persons" hidden input field
    foreach( WC()->cart->get_cart() as $cart_item ) {
        $persons = $cart_item['booking']['_persons'][0];
    }
    echo '<input type="hidden" name="persons" value="' . $persons . '">';

    return $fields;
}

然后在下面的代码中，我们可以轻松获取人数并验证您的自定义结帐字段：

//* Validate custom checkout fields
add_action( 'woocommerce_after_checkout_validation', 'ppp_checkout_field_participant_details_validation', 20, 2 );
function ppp_checkout_field_participant_details_validation( $data, $errors ){
    if ( isset( $_POST['persons'] ) && $_POST['persons'] > 1 ){

        for ( $i = 1, $j = 2; $i < esc_attr( $_POST['persons'] ); $i++, $j++ ) {
            if ( empty( $_POST['participant_details'][$i]['full_name'] ) )
                $errors->add( 'participant_'.$i.'_full_name',  __( "Please fill in the participant $j full name" ), 'error' );

            if ( empty( $_POST['participant_details'][$i]['email_address'] ) )
                $errors->add( 'participant_'.$i.'_email_address',  __( "Please fill in the participant $j email address" ), 'error' );
        }
    }
}

代码位于您的活动子主题（或活动主题）的 function.php 文件中。测试和工作。

在此处输入图像描述

于 2018-05-23T20:57:40.917 回答