Add 'updated' rich snippet information. Fixes #29

inc/template-tags.php

@@ -1,9 +1,9 @@
 <?php
 /** template-tags.php
- * 
+ *
  * Implementation of the Custom Header feature
  * http://codex.wordpress.org/Custom_Headers
- * 
+ *
  * @author		Konstantin Obenland
  * @package		The Bootstrap
  * @since		1.2.4 - 07.04.2012
@@ -33,16 +33,16 @@ function the_bootstrap_content_nav() {
 	$pagenum_link	=	html_entity_decode( get_pagenum_link() );
 	$query_args		=	array();
 	$url_parts		=	explode( '?', $pagenum_link );
-	
+
 	if ( isset( $url_parts[1] ) ) {
 		wp_parse_str( $url_parts[1], $query_args );
 	}
 	$pagenum_link	=	remove_query_arg( array_keys( $query_args ), $pagenum_link );
 	$pagenum_link	=	trailingslashit( $pagenum_link ) . '%_%';
-	
+
 	$format			=	( $wp_rewrite->using_index_permalinks() AND ! strpos( $pagenum_link, 'index.php' ) ) ? 'index.php/' : '';
 	$format			.=	$wp_rewrite->using_permalinks() ? user_trailingslashit( 'page/%#%', 'paged' ) : '?paged=%#%';
-	
+
 	$links	=	paginate_links( array(
 		'base'		=>	$pagenum_link,
 		'format'	=>	$format,
@@ -92,15 +92,30 @@ function the_bootstrap_comment_nav() {
 * @return	void
 */
 function the_bootstrap_posted_on() {
-	printf( __( '<span class="sep">Posted on </span><a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s" pubdate>%4$s</time></a><span class="by-author"> <span class="sep"> by </span> <span class="author vcard"><a class="url fn n" href="%5$s" title="%6$s" rel="author">%7$s</a></span></span>', 'the-bootstrap' ),
-			esc_url( get_permalink() ),
-			esc_attr( get_the_time() ),
-			esc_attr( get_the_date( 'c' ) ),
-			esc_html( get_the_date() ),
-			esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
-			esc_attr( sprintf( __( 'View all posts by %s', 'the-bootstrap' ), get_the_author() ) ),
-			get_the_author()
+
+	$time_string = ( get_the_time( 'U' ) == get_the_modified_time( 'U' ) )
+				 ? '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date published updated" datetime="%3$s" pubdate>%4$s</time></a>'
+				 : '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date published" datetime="%3$s" pubdate>%4$s</time><time class="assistive-text updated" datetime="%5$s">%6$s</time></a>';
+
+	$time = sprintf(
+		$time_string . '<span class="by-author"> <span class="sep">',
+		esc_url( get_permalink() ),
+		esc_attr( get_the_time() ),
+		esc_attr( get_the_date( 'c' ) ),
+		esc_html( get_the_date() ),
+		esc_attr( get_the_modified_date( 'c' ) ),
+		esc_html( get_the_modified_date() )
 	);
+
+	$author = sprintf(
+		'</span><span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span></span>',
+		esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
+		esc_attr( sprintf( __( 'View all posts by %s', 'the-bootstrap' ), get_the_author() ) ),
+		get_the_author()
+	);
+
+	printf( __( 'Posted on %1$s by %2$s', 'the-bootstrap' ), $time, $author );
+
 	if ( comments_open() AND ! post_password_required() ) { ?>
 		<span class="sep"> | </span>
 		<span class="comments-link">
@@ -156,7 +171,7 @@ function the_bootstrap_link_pages( $args = array() ) {
 				if ($i == $page) {
 					$output .= '<li class="current"><span>' . $j . '</span></li>';
 				}
-				
+
 			}
 			$output .= '</ul></nav>';
 		} else {
@@ -189,7 +204,7 @@ function the_bootstrap_link_pages( $args = array() ) {
 *
 * @author	Konstantin Obenland
 * @since	1.5,0 - 14.05.2012
-* 
+*
 * @param	bool	$echo	Optional. Whether to echo the form
 *
 * @return	void
@@ -222,10 +237,10 @@ function the_bootstrap_navbar_class() {
 
 	if ( 'static' != the_bootstrap_options()->navbar_position )
 		$classes[]	=	the_bootstrap_options()->navbar_position;
-	
+
 	if ( the_bootstrap_options()->navbar_inverse )
 		$classes[]	=	'navbar-inverse';
-	
+
 	apply_filters( 'the_bootstrap_navbar_classes', $classes );
 
 	echo 'class="' . join( ' ', $classes ) . '"';
@@ -247,13 +262,13 @@ function the_bootstrap_navbar_class() {
  * @param	string	$more		The string to display when there are more than one comment
  * @param	string	$css_class	The CSS class to use for comments
  * @param	string	$none		The string to display when comments have been turned off
- * 
+ *
  * @return	void
  */
 function the_bootstrap_comments_link( $zero = false, $one = false, $more = false, $css_class = '', $none = false ) {
 	$number = get_comments_number();
 	$class  = empty( $css_class ) ? '' : ' class="' . esc_attr( $css_class ) . '"';
-	
+
 	if ( false === $zero ) $zero = __( 'No Comments' );
 	if ( false === $one  ) $one  = __( '1 Comment' );
 	if ( false === $more ) $more = __( '% Comments' );
@@ -268,20 +283,20 @@ function the_bootstrap_comments_link( $zero = false, $one = false, $more = false
 		echo '<span' . $class . '>' . __( 'Enter your password to view comments.' ) . '</span>';
 		return;
 	}
-	
+
 	if ( 1 < $number )
 		$comments_number = str_replace( '%', number_format_i18n( $number ), $more );
 	else
 		$comments_number = ( 0 == $number ) ? $zero : $one;
-	
+
 	$link = sprintf( '<a href="%1$s"%2$s%3s title="%4$s">%5$s</a>',
 		( 0 == $number ) ? '#respond' : '#comments',
 		$class,
 		apply_filters( 'comments_popup_link_attributes', '' ),
 		esc_attr( sprintf( __( 'Comment on %s' ), the_title_attribute( array('echo' => 0 ) ) ) ),
 		apply_filters( 'comments_number', $comments_number, $number )
 	);
-	
+
 	echo apply_filters( 'the_bootstrap_comments_link', $link, $zero, $one, $more, $css_class, $none );
 }
 endif;