Adding Parent Category to body class

[Gina]

I am trying to add parent category name to the body class of archives and single-posts. I have gotten the category name into the body class of both but not the parent category name. Everything I find online about this does not seem to work. I'm using Genesis framework with Going Green Pro child theme for what it's worth. Any help would be very much appreciated!

http://plaqueminesparish.com/wp/category/homeland-security/hsep-in-depth/

[Gina]

So nobody has any idea how to do this???

[Genesis Developer]

See the codex http://codex.wordpress.org/Function_Reference/body_class

and this https://wordpress.org/support/topic/how-to-display-the-parent-category-in-the-archive

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[RitzyThemes]

try following code in your functions.php

function add_parent_category_body( $classes )
{	
	global $post;

	$categories = get_the_category( $post->ID );
	$classes[] = $categories[0]->slug;
	
	return $classes;
}
add_filter( 'body_class', 'add_parent_category_body' );

NOTE: Backup before making any changes in functions.php

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[Gina]

Thank you RitzyThemes. I tried add that code but I still don't get the parent category in the body tag for some reason.

[RitzyThemes]

the post must have parent and child category.

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[Gina]

Am I missing something? This is my example: http://plaqueminesparish.com/wp/category/homeland-security/hsep-in-depth/
hsep-in-depth is the child.
homeland-security is the parent.
Or am I not understanding that correctly?

Thank you for your help!!!

[Genesis Developer]

You are wanting to add the "homeland-security" into the body class Correct? If there have sub-sub category then it will add two parent category?

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[Genesis Developer]

Also you can see this Codex http://codex.wordpress.org/Function_Reference/get_category_parents . It is fetching the parent category.

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[Gina]

Yes I am wanting to add "homeland-security" to the body class. Not sure what you are saying about sub-sub category. Sorry. I read over that codex but I'm just not sure what I'm supposed to do with that info. Oh well. I guess I need to find a different solution. Thank you for trying!

[Gina]

What I am actually trying to do is style everything with the homeland-security parent category the same way...different nav colors and different sidebar content. There are other ways I can do it but I just thought using the parent category body class would be the easiest way.

[Author]

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