How to Group Articles or Post by Author

21st Feb 2011 | Posted by reza | 4 Comments

Grouping articles in specific criteria, like category, date or alphabet, could always help visitors to quickly find one or two posts. In my previous tutorial, I’ve shared a code snippet to group posts aphabetically. This time, I’ll share the code to group posts by their author.

This code will list post authors, their ID, their posts and their gravatar, like this :

Author ID1, Reza Erauansyah :
[Gravatar]
Post 1
Post 2
etc etc

Author ID2, Boss Reza :
[Gravatar]
Post 1
Post 2
etc etc

etc etc

How To

And here’s the code :

<?php
$blogusers = $wpdb->get_results( "SELECT ID, user_nicename from $wpdb->users WHERE 1=1 ORDER BY display_name" );
if ($blogusers) {
  foreach ($blogusers as $bloguser) {
    $user = get_userdata($bloguser->ID);
    $args=array(
      'author' => $user->ID,
      'post_type' => 'post',
      'post_status' => 'publish',
      'posts_per_page' => -1,
      'caller_get_posts'=> 1
    );
    $my_query = null;
    $my_query = new WP_Query($args);
    if( $my_query->have_posts() ) {
      echo '<p>User ID ' . $user->ID . ' ' . $user->user_firstname . ' ' . $user->user_lastname . '</p>';
      echo get_avatar( $user->ID, 46 );
      while ($my_query->have_posts()) : $my_query->the_post(); ?>
        <p><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></p>
        <?php
      endwhile;
    }
  wp_reset_query();
  }
}
?>

You can put this code in the sidebar or wherever you want or in a page template to create a site map.

Hope this code helps.

Credit:
Thanks to queesy and MichaelH from WordPress.org