Author Archive – Display author posts by category

I’m using the author.php to list generate author archives for a multi-author site. It’s for a radio station, and each DJ writes regular posts as well as play lists (both are in different categories). I would like to separate these two in the archive if possible. I imagine it’s in the loop, and I tried modifying it with a query, which worked to split the content, but it didn’t filter by author.

Here’s an example of my author.php file – if it helps at all.

<?php get_header(); ?>

<?php get_sidebar(); ?>

<div id="standard-container" class="narrowcolumn">
<!-- This sets the $curauth variable -->
<?php
if(isset($_GET['author_name'])) :
$curauth = get_userdatabylogin($author_name);
else :
$curauth = get_userdata(intval($author));
endif;
?>
<div class="postauthor">
<?php echo get_avatar( $curauth->ID , 80 ); ?>
<h4>DJ: <span class="red"><?php echo $curauth->nickname; ?></span></h4>
<strong>Show Title: </strong><?php echo $curauth->showtitle; ?> <br />
<strong>Show Hours: </strong><?php echo $curauth->showhours; ?> <br />
<strong>Music Type: </strong><?php echo $curauth->showtype; ?> <br /> <br />
<p><strong>Bio:</strong> <?php echo $curauth->user_description; ?></p>
<h3>Posts by <?php echo $curauth->display_name; ?>:</h3>
<ul>

<!-- The Loop -->

    <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
        <li>
            <a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link: <?php the_title(); ?>">
            <?php the_title(); ?></a>,
            <?php the_time('d M Y'); ?> in <?php the_category('&');?>
        </li>

    <?php endwhile; else: ?>
        <p><?php _e('No posts by this author.'); ?></p>

    <?php endif; ?>

<!-- End Loop -->

    </ul>

</div>
<?php get_footer(); ?>