如何在发表评论之前强制/要求Wordpress评论复选框？

问题描述：

I disabled the Wordpress function 'Show comments cookies opt-in checkbox, allowing comment author cookies to be set.' but I added a checkbox in the comment form manually because I wanted to change the label of the checkbox.

I did this by adding the following code to the functions.php of my child theme:

add_filter( 'comment_form_default_fields', 'tu_comment_form_change_cookies_consent' );
function tu_comment_form_change_cookies_consent( $fields ) {
    $commenter = wp_get_current_commenter();

    $consent   = empty( $commenter['comment_author_email'] ) ? '' : ' checked="checked"';

    $fields['cookies'] = '<p class="comment-form-cookies-consent"><input id="wp-comment-cookies-consent" name="wp-comment-cookies-consent" type="checkbox" value="yes"' . $consent . ' />' .
                     '<label for="wp-comment-cookies-consent">By using this comment form you agree with our Privacy Policy</label></p>';
    return $fields;

}

This is working fine but now I wanna have this checkbox mandatory so that the user has to check it before pressing the 'Post comment' button.

So if the checkbox is unchecked, the user should see a error message when clicking on the 'Post comment' button.

How can I do that? All the suggestions I found so far are not working, like for example adding 'required' behind the input id or name.

Thanks for your help!

我禁用了Wordpress功能'显示评论cookie选择复选框，允许设置评论作者cookie。' 但我手动在评论表单中添加了一个复选框，因为我想更改复选框的标签。 p>

我这样做是通过将以下代码添加到我的子主题的functions.php中： p>

  add_filter（'comment_form_default_fields'，'tu_comment_form_change_cookies_consent'）; 
 
函数tu_comment_form_change_cookies_consent（$ fields）{
 $ commenter = wp_get_current_commenter（）; 
 
 $ consent = empty  （$ commenter ['comment_author_email']）？  ''：'checked =“checked”'; 
 
 $ fields ['cookies'] ='＆lt; p class =“comment-form-cookies-consent”＆gt;＆lt; input id =“wp-comment-  cookies-consent“name =”wp-comment-cookies-consent“type =”checkbox“value =”yes“'。  $同意。  '/＆gt;'  。
'＆lt; label for =“wp-comment-cookies-consent”＆gt;使用此评论表单即表示您同意我们的隐私政策＆lt; / label＆gt;＆lt; / p＆gt;'; 
返回$ fields; 
  
} 
  code>  pre> 
 
 这个工作正常，但现在我想强制使用此复选框，以便用户在按“发表评论”按钮之前必须检查它。  / p> 
 
 
因此，如果取消选中该复选框，则用户在单击“发表评论”按钮时应看到错误消息。 p> 
 
 
我该怎么做 ？ 到目前为止我找到的所有建议都没有用，例如在输入ID或名称后添加'required'。 p> 
 
 
感谢您的帮助！ p> 
  div  >

答

There is a filter hook just before comment data is set. It is preprocess_comment. In that hook I have checked if the checkbox is set or not. If not it will block to post comment data.

function wpso_verify_policy_check( $commentdata ) {
    if ( 'post' === get_post_type( $_POST['comment_post_ID'] ) ) {
        if ( ! isset( $_POST['wp-comment-cookies-consent'] ) ) {
            wp_die( '<strong>' . __( 'WARNING: ' ) . '</strong>' . __( 'You must accept the Privacy Policy.' ) . '<p><a href="javascript:history.back()">' . __( '&laquo; Back' ) . '</a></p>');
        }
    }
    return $commentdata;
}

add_filter( 'preprocess_comment', 'wpso_verify_policy_check' );

Edit: Added post type conditional so that this check is applied to post post type only.

如何在发表评论之前强制/要求Wordpress评论复选框？

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