调用接口后Wordpress使cf7无效

Question

这是我的问题，我已经安装了wordpress的联系表单7，在wpcf7_before_send_mail期间我调用了一个API，我需要使表单无效，如果API返回一个错误，那么我需要使请求无效，并返回从API调用返回的错误。

我在API失败时设置了一个标志为false，错误消息也会被存储，但是尽管我导致了失败，我的表单还是成功了。

add_action("wpcf7_before_send_mail", "wpcf7_send_contact_builder");
function wpcf7_send_contact_builder($form) {
    $submission = WPCF7_Submission::get_instance();
    $wpcf7_data = $submission->get_posted_data();
    ... api call and set $success to true if ok and false if not ...
    if (!$success) {
        $form->status = 'validation_failed (statuscode:' . $xml->status->statuscode[0] . ').';
        $form->valid = false;
        $form->response = $xml->status->statusdesc[0];
        return $forml
    }
}

我也尝试过使用：

$form->invalidate('validation_failed (statuscode:' . $xml->status->statuscode[0] . ').', $xml->status->statusdesc[0]);

但无论以哪种方式，我都无法阻止成功电子邮件的发送和表单的验证为成功。调试证明if语句中的!success是有效的，并且包含的代码已添加到变量中。我还尝试将form看作是一个数组($ form‘’valid‘= false)，但这也不起作用，表单提交成功。你知道我这里漏掉了什么吗？我省略了API调用本身和确定正确的表单id的代码，这两个都可以正常工作，只有我想要的表单会被解析，并且API调用会返回预期的数据。

Answer 1

我也需要同样的东西。在浏览完CF7插件文件后，我找到了以下解决方案：

//To make it working, we must need at least CF7-v5.0;
add_action( 'wpcf7_before_send_mail', 'cf7_validate_api', 15, 3 );

function cf7_validate_api($cf7, &$abort, $submission){

    if ( $cf7->id() !== 789 ) //CF7 post-id from admin settings;
        return;

    $errMsg = '';

    //$submission = WPCF7_Submission::get_instance();
    $postedData = $submission->get_posted_data();
    //$postedData['more-data'] = 'something';
    unset($postedData['not-sending-data']);

    //-----API posting------
    $url = "http://my-web.com/wp-admin/admin-ajax.php?action=get-something";
    $username = 'apiUserName';
    $password = 'apiUserPass';

    $args = [
        'headers' => [
            'Authorization' => "Basic ".base64_encode( $username . ':' . $password ),
            'Accept' => 'application/json; charset=utf-8', // The API returns JSON
            //'Content-Type' => 'application/json; charset=utf-8'
        ],
        'body' => $postedData
    ];
    $response = wp_remote_post( $url, $args );
    //------------------

    if( is_wp_error( $response ) ){
        $error_message = $response->get_error_message();
        $errMsg = "Something went wrong:\n{$error_message}";

    } else {
        $response_body = wp_remote_retrieve_body( $response );
        $data = json_decode( $response_body );

        if( empty($data) || $data->status==0 ){ //API validation error!
            $errMsg = $data->msg->title."\n".$data->msg->description;
        }
    }

    if( $errMsg ){ //do not send mail;
        //$cf7->skip_mail = true; //for older versions!
        $abort = true; //==> Here, it is with 'called by reference' since CF7-v5.0 :)
        $submission->set_status( 'validation_failed' );
        //$submission->set_response( $cf7->message( 'validation_error' ) ); //msg from admin settings;
        $submission->set_response( $cf7->filter_message($errMsg) ); //custom msg;
    }
}

希望它能帮助一些人。快乐编码:)