'catalog' page template 2011

<?php
/**
 * Template Name: 'Catalog'
 *
 * a page template to display sub category posts of the 'catalog' category in a three column layout
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */

get_header(); ?>

        <section id="primary">
            <div id="content" role="main">

            <?php $category = get_term_by('slug', 'catalog', 'category');
            $cat_query = new WP_Query( array(
                'cat' => $category->term_id ));
            if( $cat_query->have_posts() ) : ?>

                <header class="page-header">
                    <h1 class="page-title"><?php
                        printf( __( 'Category Archives: %s', 'twentyeleven' ), '<span>' . $category->name . '</span>' );
                    ?></h1>

                    <?php
                        $category_description = category_description( $category->term_id );
                        if ( ! empty( $category_description ) )
                            echo apply_filters( 'category_archive_meta', '<div class="category-archive-meta">' . $category_description . '</div>' );
                    ?>
                </header>


    <?php $sub_cats = get_categories( 'parent=' .  $category->term_id ); // get direct sub categories http://codex.wordpress.org/Function_Reference/get_categories //

    if( $sub_cats ) foreach( $sub_cats as $sub_cat ) :

    $sub_cat_query = new WP_Query( array(
        'posts_per_page' => -1,
        'category__in' => array( $sub_cat->term_id )
        ));
    if( $sub_cat_query->have_posts() ) : ?>
    <h3 class="cat-title">Sub-category <?php echo $sub_cat->name; ?> for category <?php echo single_cat_title(); ?></h3>

    <div class="columns">
    <?php while( $sub_cat_query->have_posts() ) : $sub_cat_query->the_post(); ?>

    <div class="column column<?php echo $sub_cat_query->current_post%3; ?>">     <div class="post" id="post-<?php echo $post->ID; ?>">
    POST WITH THUMBNAIL AND TITLE; YOU KNOW WHAT TO PUT HERE
    </div></div><!--/ .column and .post -->
    <?php endwhile; ?>

    </div><!--/ .columns -->
    <div class="clear"></div> <!--clear any floats-->
    <?php endif; wp_reset_postdata();

    endforeach; // ends foreach( $sub_cats as $sub_cat ) //
    ?>


            <?php else : ?>

                <article id="post-0" class="post no-results not-found">
                    <header class="entry-header">
                        <h1 class="entry-title"><?php _e( 'Nothing Found', 'twentyeleven' ); ?></h1>
                    </header><!-- .entry-header -->

                    <div class="entry-content">
                        <p><?php _e( 'Apologies, but no results were found for the requested archive. Perhaps searching will help find a related post.', 'twentyeleven' ); ?></p>
                        <?php get_search_form(); ?>
                    </div><!-- .entry-content -->
                </article><!-- #post-0 -->

            <?php endif; wp_reset_postdata(); ?>

            </div><!-- #content -->
        </section><!-- #primary -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>