Where to add class hentry in twentyfourteen

What will save me a lot of time is getting this code to work `//mod content
function hatom_mod_post_content ($content) {
if ( in_the_loop() && !is_page() ) {
$content = ‘<span class=”entry-content”>’.$content.'</span>’;
}
return $content;
}
add_filter( ‘the_content’, ‘hatom_mod_post_content’);

//add hatom data
function add_mod_hatom_data($content) {
$t = get_the_modified_time(‘F jS, Y’);
$author = get_the_author();
$title = get_the_title();
if(is_single()) {
$content .= ‘<div class=”hatom-extra”><span class=”entry-title”>’.$title.'</span> was last modified: <span class=”updated”> ‘.$t.'</span> by <span class=”author vcard”><span class=”fn”>’.$author.'</span></span></div>’;
}
return $content;
}
add_filter(‘the_content’, ‘add_mod_hatom_data’);`

I think it is not working because no hentry class is provided by the theme, is this correct?

Please clarify what you want to add and where. This doesn’t make sense:

class="hentry"></article

Do you have a Child Theme?

Hi Andrew, I am using a child theme, yes. I am having a terrible headache with the hAtom errors. I found this solution but can’t get this to work on functions.php, https://www.davidtiong.com/fix-hatom-microformats-at-least-one-field-must-be-set-for-hatomentry/

I know I am missing something, maybe hentry class or article class. I am completely clueless and mu coding knowledge is small.

Okay if you want to add a class of “hentry” to the ‘<article>‘ element add this to your Child Theme functions.php file:

/**
 * Extend the default WordPress post classes.
 *
 * @since Twenty Fourteen 1.0
 *
 * @param array $classes A list of existing post class values.
 * @return array The filtered post class list.
 */
function childthemename_post_classes( $classes ) {
    $classes[] = 'hentry';

    return $classes;
}
add_filter( 'post_class', 'childthemename_post_classes' );

Thank you Andrew!! Can I also add the updated date to this function? If yes, what do I need to write?

By updated I mean the date modified

The update class can be added by putting this function into your Child Theme functions.php file:

/**
 * Print HTML with meta information for the current post-date/time and author.
 *
 * @since Twenty Fourteen 1.0
 */
function twentyfourteen_posted_on() {
	if ( is_sticky() && is_home() && ! is_paged() ) {
		echo '<span class="featured-post">' . __( 'Sticky', 'twentyfourteen' ) . '</span>';
	}

	// Set up and print post meta information.
	printf( '<span class="entry-date"><a href="%1$s" rel="bookmark"><time class="entry-date updated" datetime="%2$s">%3$s</time></a></span> <span class="byline"><span class="author vcard"><a class="url fn n" href="%4$s" rel="author">%5$s</a></span></span>',
		esc_url( get_permalink() ),
		esc_attr( get_the_date( 'c' ) ),
		esc_html( get_the_date() ),
		esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
		get_the_author()
	);
}

[Updated]

Thank you Andrew!! I am going to try this now, stay with me please.

Got white screen of death. You’re sure this code goes into functions.php?

Remove that bit:

endif;

I am referring to updated.

I will try it now, one sec Andrew

I’ve updated the code just now, can you retry it

It is not working, I am still getting the errors that updated is missing on structure testing tool. What else I can try? If I want to add it manually, where do I place the class?