ACF Pro acf/upload_prefilter not working?

• the_lar

• July 10, 2018 at 1:44 am

Hi all,

I have a simple form with a file upload and I’m attempting to intercept it with the ‘upload_prefilter’ filter, but it’s just not working!

My code is as follows:

function my_acf_upload_prefilter( $errors, $file, $field ) {

    $errors[] = 'computer says no';

    // return
    return $errors;

}

add_filter('acf/upload_prefilter/name=unique_upload_image', 'my_acf_upload_prefilter');

I thought this would just cause the upload to fail for the field named ‘unique_upload_image’ – but it continues to work fine.

Am I doing something stupid here?

Thanks
Kevin

• the_lar

• July 10, 2018 at 1:51 am

OK my bad, I was forgetting my namespacing!!!

Should have been:
add_filter('acf/upload_prefilter/name=unique_upload_image', '\App\my_acf_upload_prefilter');

However, although this now works, it’s still not displaying the error message I defined, it’s just saying ‘HTTP error’?

Any ideas?
Kev