Add MC Tag Based On Post Category

I think that this code runs outside of the post loop so it doesn’t know what post we’re at and what it’s category is.

The mc4wp_integration_wp-comment-form_subscriber_data filter has $related_object_id as second parameter after the $subscriber.

I believe that would be the post ID in this case, that you can use to look up the post and get it’s category.

Kind regards,

Thanks for the reply!

How do I pull out the $related_object_id from mc4wp_integration_wp-comment-form_subscriber_data?

Then I can use:

$category_ids = wp_get_post_categories($post_id);

foreach($category_ids as $cat_id) {
  $category = get_category($cat_id);
  if ( $category->name == ‘caption-contest’ ) {
    $subscriber->tags[] = ‘Caption Contest’;
  }
}
return $subscriber;

Something like this (untested example code).

add_filter(
	'mc4wp_integration_wp-comment-form_subscriber_data’',
	function( MC4WP_MailChimp_Subscriber $subscriber, $postid ) {
		//your code here using $postid to get the id number of the post
		return $subscriber
	},10,2);

Thanks for helping! Here’s what I tried which still does not work. It does register the user with MailChimp fine but does not set the tag.

add_filter('mc4wp_integration_wp-comment-form_subscriber_data', function( MC4WP_MailChimp_Subscriber $subscriber, $postid ) {
    $category_ids = wp_get_post_categories($post_id);

    foreach($category_ids as $cat_id) {
      $category = get_category($cat_id);
      if($category->name === 'caption-contest') {
        $subscriber->tags[] = 'Caption Contest';
      }
    }
	return $subscriber;
	},10,2);

Where is:

mc4wp_integration_wp-comment-form_subscriber_data

located?

As a test can you write $postid to a text field in Mailchimp just to see if that ID is coming in properly?

Kind regards,

That second field is not Post ID but List ID so it’s of no use. I’ve tried everything I can think of to get his work but nothing works. It seems like it should be very simple but once the MC4MP functions are called all the data is gone. I tried global variables to read the category before the comment is sent, no luck. I tried reading the $_POST data but not luck even in global variable, and many many other iterations. ?? Would be a nice feature.

oh i see, sorry about that.

The hook happens outside of the post loop so the only other way that I can then think of is creating a hidden field with the post ID in it so that you have the post ID in the $_POST data.

But if a global variable that is set before MC4MP even runs won’t work how would this work? Outside of the MC4MP function it works perfectly, I can test for category and do whatever I want.

I created a feature request here: https://github.com/ibericode/mailchimp-for-wordpress/issues/761

The mc4wp_integration_wp-comment-form_data hook receives the comment ID as a parameter. This comment ID can be used to retrieve any related information on the comment, as follows:

add_action( 'mc4wp_integration_wp-comment-form_data', function( $data, $comment_id ) {
$comment = get_comment( $comment_id );
$post_id = $comment->comment_post_ID;
// …. etc
}, 10, 2);

Hope that helps. If you have any questions, please let me know!