Home Forums Front-end Issues Adding a classname to the body class


Adding a classname to the body class

  • Hi there

    We currently have a custom field called ‘brand’ and it is a Select field type.
    The brand values are parkland, toro, pope, grillo, yamaha etc

    We are using the body_class filter for inserting a brand value into the body class. We are using it within pages, products, product_cat, posts. We are using it to theme the page with different colours

    Below is the function we have in functions.php

    add_filter( 'body_class', 'brand_class' );
    function brand_class( $classes ) {
        if ( $brand = get_field( 'brand') ) {
            $brand  = esc_attr( trim( $brand ) );
            $classes[]       = $brand;
        return $classes;

    It has been working fine up until now but we have introduced a Product category that now includes different products with differing brands.

    This product category page has the brand ‘parkland’ associated with it but the brand that is showing for the page is ‘toro’.

    My question is how do I get the brand for the product_cat without it somehow getting the brand value from the product (assuming the first product in the list)

    I hope I’ve explained myself clear enough



  • Hi,
    Did you make it work?

  • In the function ACF is assuming that the post you want to get the value from is the current post. In the case of a term it is probably getting the first post in the list.

    The first thing that you need to do is to figure out what is actually being queried and then do something different and/or set the correct post ID.

    // see what WP is actually showing.
    $queried_object = get_queried_object();
    if (is_a($queried_object, 'WP_Post')) {
      // queried object is a post
      $post_id = $queried_object->ID;
    } elseif (is_a($queried_object, 'WP_Term')) {
      // queried object is a term
      $post_id = 'term_'$queried_object->term_id;
    // and an acf field
    $value = get_field('some_field_name', $post_id);

    You can also do other things based on what type of object is being shown.

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