More Than One Night

// Category stuff
if ((empty($q['cat'])) || ($q['cat'] == '0') ||
// Bypass cat checks if fetching specific posts
( $this->is_single || $this->is_page )) {
 $whichcat='';
 } else {
  $q['cat'] = ''.urldecode($q['cat']).'';
         $q['cat'] = addslashes_gpc($q['cat']);
         $join = "LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) ";
         $cat_array = preg_split('/[,\s]+/', $q['cat']);
         $in_cats = $out_cats = '';
        
  foreach ( $cat_array as $cat ) {
          $in = strstr($cat, '-') ? false : true;
                 $cat = trim($cat, '-');
                
   if ( $in )
                  $in_cats .= "$cat," . get_category_children($cat, '', ',');
                 else
                  $out_cats .= "$cat," . get_category_children($cat, '', ',');                        
  }
        
  $in_cats = substr($in_cats, 0, -2);
         $out_cats = substr($out_cats, 0, -2);
        
  if ( strlen($in_cats) > 0 )
          $in_cats = "AND category_id IN ($in_cats)";
                
   if ( strlen($out_cats) > 0 )
                  $out_cats = "AND category_id NOT IN ($out_cats)";
                         $whichcat = $in_cats . $out_cats;
                         $distinct = 'DISTINCT';
 }
 

// Category stuff for nice URIs
 
global $cache_categories;
if ('' != $q['category_name']) {