3

I have created a radio button field with ACF so that admin can specify a colour. E.g:

  • blue : Blue
  • pink : Pink

I'd like this to be output as a class via <body <?php body_class(); ?> in header.php. Is this possible?

I'm currently outputting the class in header.php like so: 

<div id="page" class="site <?php the_field('package_colour',$post->ID); ?>">
Improve this question

1 Answer 1

Reset to default
5

Hook into the body_class filter and add your field there. It might be better to get the ID from get_queried_object_id() instead of get_the_ID().

add_filter( 'body_class', 'wpse_20160118__body_class' );

function wpse_20160118__body_class( $classes ) {

    if ( $package_colour = get_field( 'package_colour', get_queried_object_id() ) ) {

        $package_colour  = esc_attr( trim( $package_colour ) );

        $classes[]       = $package_colour;
    }

    return $classes;
}
Improve this answer
4
  • 1
    the_field functions output the value, not return. So get_field() is better.
    – Kolya Korobochkin
    Commented Jan 18, 2016 at 11:55
  • I've added this to functions.php and here's what I'm seeing via the inspector: <body blueclass="single single-products postid-136">
    – Sam
    Commented Jan 18, 2016 at 11:55
  • 1
    Thanks @KolyaKorobochkin, using get_field() fixed the issue :)
    – Sam
    Commented Jan 18, 2016 at 11:56
  • 1
    get_the_ID() had produced problems for me and wasn’t reliable, your version is foolproof and works just well.
    – physalis
    Commented Jan 26, 2016 at 10:10

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.