Archived topic
Inserting custom class on archive page
5 replies · Started by Andy on August 1, 2021
Hi,
I'm trying to insert a custom class into the post title markup on the blog archive page so that I can use an ACF field checkbox to specify a different post title color on a post by post basis.
I'm using the following code to apply this to the body on individual posts and it works well:
function add_acf_body_class($class) {
$value = get_field('title_color');
$class[] = $value;
return $class;
}
add_filter('body_class', 'add_acf_body_class');However, on an archive page I need to target each post on the same page, so adding to the body class won't work. Could I use the generate_do_element_classes() to achieve this and if so could you advise me on how to go about it?
Many thanks,
Hi there,
you can use the post_class filter instead:
https://developer.wordpress.org/reference/functions/post_class/
Thanks for this it works great.
I need add another custom class to the body but because already have a function adding the title colour I can't seem to get it to work, I've tried the following code:
function add_acf_body_class_size_post($class) {
$value = get_field('title_size');
$class[] = $value;
return $class;
}
add_filter('body_class', 'add_acf_body_class_size_post');And this is my existing custom class which DOES work:
function add_acf_body_class($class) {
$value = get_field('title_color');
$class[] = $value;
return $class;
}
add_filter('body_class', 'add_acf_body_class');Is there a way I can add an array maybe to add multiple classes?
You could do a single function like this:
function add_acf_body_classes($classes) {
$title_color = get_field('title_color');
$title_size = get_field('title_size');
if ($title_color) {
$classes[] = $title_color;
}
if ($title_size) {
$classes[] = $title_size;
}
return $classes;
}
add_filter('body_class', 'add_acf_body_classes');
I added some IF conditions, as it makes sense to only output something if it exists. Not sure its necessary - and the alternative stripped right back code would be:
function add_acf_body_classes($classes) {
$classes[] = get_field('title_color');
$classes[] = get_field('title_size');
return $classes;
}
add_filter('body_class', 'add_acf_body_classes');
The $classes instead of $class is arbitrary, its just gives the code a little more readability
Thank you, works great!!
Glad to hear that
