I've only just realised that custom post types don't appear to output the category as a class in the loop, via
post_class and I wonder if anyone can suggest a work around. Is this something that should be declared when I establish my post type or is this an extension of
For example, on a post of type
post the class outputs something like:
class="post-50434 post type-post status-publish format-standard hentry category-my-lovely-category tag-some-ace-tag" but for my custom post type the category doesn't appear.
-- EDIT --
Here's a bit of my code which might help to clarify what I'm trying to do - firstly though, I'm not actually trying to get the class onto the body but onto the article in my loop:
<?php $cat = get_the_category(); $parentCatName = get_cat_name($cat->parent); ?> <article id="post-<?php the_ID(); ?>" <?php post_class(); ?> data-category="<?php echo $parentCatName; ?>" data-title="<?php the_title(); ?>"> [...] </article>
The trouble that I'm having is retrieving the custom post type category info in the same way as I can for the default post type.
-- EDIT --
Sorry, perhaps a little background to what I'm trying to achieve will help - I'll try to keep it brief:
I'm using Isotope masonry layout
I wish to filter results by a 'data-category' attribute added to each post during the loop
My categories for several post types (post, product, course) are grouped under common parent categories
In my loop I therefor want to populate that 'data-category' field with the parent category
My problem arises as I can only get the category, and in turn the parent category, for the default custom post type, using get_the_category.
I hope this is making sense.