php - 动态更改 CF7 表单值

Question

我一直在尝试动态更改 CF7 表单字段而不使用 Contact Form 7 动态文本扩展。我看过很多关于如何获取发布数据的文章，而不是关于如何覆盖现有值的文章。我的目标是动态更改文件附件并添加与每个帖子关联的其他元数据。这可以做到吗？谢谢!

这是我目前所拥有的:

function wpcf7_custom_before_send(&$cf7) {
    if ( $cf7->id == 4 ) {
        $submission = WPCF7_Submission::get_instance();
        if ( $submission ) {
            $data =& $submission->get_posted_data();
            // how do I overwrite posted data?
        }
    }
}
add_action("wpcf7_before_send_mail", "wpcf7_custom_before_send");

Answer 1

您可以使用我的代码来执行此操作。对您的代码的一些解释:

1) 由于 id $cf7->id 属性不再可访问。使用 id() 方法代替 $cf7->id()。

2) 回调$cf7 和$submission 不需要使用&。用于此返回。

add_action("wpcf7_before_send_mail", "wpcf7_do_something");

function wpcf7_do_something($WPCF7_ContactForm)
{

    if (224 == $WPCF7_ContactForm->id()) {

        //Get current form
        $wpcf7      = WPCF7_ContactForm::get_current();

        // get current SUBMISSION instance
        $submission = WPCF7_Submission::get_instance();

        // Ok go forward
        if ($submission) {

            // get submission data
            $data = $submission->get_posted_data();

            // nothing's here... do nothing...
            if (empty($data))
                return;

            // extract posted data for example to get name and change it
            $name         = isset($data['your-name']) ? $data['your-name'] : "";

            // do some replacements in the cf7 email body
            $mail         = $wpcf7->prop('mail');

            // Find/replace the "[your-name]" tag as defined in your CF7 email body
            // and add changes name
            $mail['body'] = str_replace('[your-name]', $name . '-tester', $mail['body']);

            // Save the email body
            $wpcf7->set_properties(array(
                "mail" => $mail
            ));

            // return current cf7 instance
            return $wpcf7;
        }
    }
}

就是这样，我们更改了一些标签，并发送带有修改后标签的电子邮件;-)