webmaster@1: <?php
webmaster@1: // $Id: taxonomy.pages.inc,v 1.9 2008/01/18 16:23:57 goba Exp $
webmaster@1: 
webmaster@1: /**
webmaster@1:  * @file
webmaster@1:  * Page callbacks for the taxonomy module.
webmaster@1:  */
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Menu callback; displays all nodes associated with a term.
webmaster@1:  */
webmaster@1: function taxonomy_term_page($str_tids = '', $depth = 0, $op = 'page') {
webmaster@1:   $terms = taxonomy_terms_parse_string($str_tids);
webmaster@1:   if ($terms['operator'] != 'and' && $terms['operator'] != 'or') {
webmaster@1:     drupal_not_found();
webmaster@1:   }
webmaster@1: 
webmaster@1:   if ($terms['tids']) {
webmaster@1:     $result = db_query(db_rewrite_sql('SELECT t.tid, t.name FROM {term_data} t WHERE t.tid IN ('. db_placeholders($terms['tids']) .')', 't', 'tid'), $terms['tids']);
webmaster@1:     $tids = array(); // we rebuild the $tids-array so it only contains terms the user has access to.
webmaster@1:     $names = array();
webmaster@1:     while ($term = db_fetch_object($result)) {
webmaster@1:       $tids[] = $term->tid;
webmaster@1:       $names[] = $term->name;
webmaster@1:     }
webmaster@1: 
webmaster@1:     if ($names) {
webmaster@1:       $title = check_plain(implode(', ', $names));
webmaster@1:       drupal_set_title($title);
webmaster@1: 
webmaster@1:       switch ($op) {
webmaster@1:         case 'page':
webmaster@1:           // Build breadcrumb based on first hierarchy of first term:
webmaster@1:           $current->tid = $tids[0];
webmaster@1:           $breadcrumb = array();
webmaster@1:           while ($parents = taxonomy_get_parents($current->tid)) {
webmaster@1:             $current = array_shift($parents);
webmaster@1:             $breadcrumb[] = l($current->name, 'taxonomy/term/'. $current->tid);
webmaster@1:           }
webmaster@1:           $breadcrumb[] = l(t('Home'), NULL);
webmaster@1:           $breadcrumb = array_reverse($breadcrumb);
webmaster@1:           drupal_set_breadcrumb($breadcrumb);
webmaster@1: 
webmaster@1:           $output = theme('taxonomy_term_page', $tids, taxonomy_select_nodes($tids, $terms['operator'], $depth, TRUE));
webmaster@1:           drupal_add_feed(url('taxonomy/term/'. $str_tids .'/'. $depth .'/feed'), 'RSS - '. $title);
webmaster@1:           return $output;
webmaster@1:           break;
webmaster@1: 
webmaster@1:         case 'feed':
webmaster@1:           $channel['link'] = url('taxonomy/term/'. $str_tids .'/'. $depth, array('absolute' => TRUE));
webmaster@1:           $channel['title'] = variable_get('site_name', 'Drupal') .' - '. $title;
webmaster@1:           // Only display the description if we have a single term, to avoid clutter and confusion.
webmaster@1:           if (count($tids) == 1) {
webmaster@1:             $term = taxonomy_get_term($tids[0]);
webmaster@1:             // HTML will be removed from feed description, so no need to filter here.
webmaster@1:             $channel['description'] = $term->description;
webmaster@1:           }
webmaster@1: 
webmaster@1:           $result = taxonomy_select_nodes($tids, $terms['operator'], $depth, FALSE);
webmaster@1:           $items = array(); 
webmaster@1:           while ($row = db_fetch_object($result)) {
webmaster@1:             $items[] = $row->nid;
webmaster@1:           }
webmaster@1: 
webmaster@1:           node_feed($items, $channel);
webmaster@1:           break;
webmaster@1: 
webmaster@1:         default:
webmaster@1:           drupal_not_found();
webmaster@1:       }
webmaster@1:     }
webmaster@1:     else {
webmaster@1:       drupal_not_found();
webmaster@1:     }
webmaster@1:   }
webmaster@1: }
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Render a taxonomy term page HTML output.
webmaster@1:  *
webmaster@1:  * @param $tids
webmaster@1:  *   An array of term ids.
webmaster@1:  * @param $result
webmaster@1:  *   A pager_query() result, such as that performed by taxonomy_select_nodes().
webmaster@1:  *
webmaster@1:  * @ingroup themeable
webmaster@1:  */
webmaster@1: function theme_taxonomy_term_page($tids, $result) {
webmaster@1:   drupal_add_css(drupal_get_path('module', 'taxonomy') .'/taxonomy.css');
webmaster@1: 
webmaster@1:   $output = '';
webmaster@1: 
webmaster@1:   // Only display the description if we have a single term, to avoid clutter and confusion.
webmaster@1:   if (count($tids) == 1) {
webmaster@1:     $term = taxonomy_get_term($tids[0]);
webmaster@1:     $description = $term->description;
webmaster@1: 
webmaster@1:     // Check that a description is set.
webmaster@1:     if (!empty($description)) {
webmaster@1:       $output .= '<div class="taxonomy-term-description">';
webmaster@1:       $output .= filter_xss_admin($description);
webmaster@1:       $output .= '</div>';
webmaster@1:     }
webmaster@1:   }
webmaster@1: 
webmaster@1:   $output .= taxonomy_render_nodes($result);
webmaster@1: 
webmaster@1:   return $output;
webmaster@1: }
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Helper function for autocompletion
webmaster@1:  */
webmaster@1: function taxonomy_autocomplete($vid, $string = '') {
webmaster@1:   // The user enters a comma-separated list of tags. We only autocomplete the last tag.
webmaster@1:   $array = drupal_explode_tags($string);
webmaster@1: 
webmaster@1:   // Fetch last tag
webmaster@1:   $last_string = trim(array_pop($array));
webmaster@1:   $matches = array();
webmaster@1:   if ($last_string != '') {
webmaster@1:     $result = db_query_range(db_rewrite_sql("SELECT t.tid, t.name FROM {term_data} t WHERE t.vid = %d AND LOWER(t.name) LIKE LOWER('%%%s%%')", 't', 'tid'), $vid, $last_string, 0, 10);
webmaster@1: 
webmaster@1:     $prefix = count($array) ? implode(', ', $array) .', ' : '';
webmaster@1: 
webmaster@1:     while ($tag = db_fetch_object($result)) {
webmaster@1:       $n = $tag->name;
webmaster@1:       // Commas and quotes in terms are special cases, so encode 'em.
webmaster@1:       if (strpos($tag->name, ',') !== FALSE || strpos($tag->name, '"') !== FALSE) {
webmaster@1:         $n = '"'. str_replace('"', '""', $tag->name) .'"';
webmaster@1:       }
webmaster@1:       $matches[$prefix . $n] = check_plain($tag->name);
webmaster@1:     }
webmaster@1:   }
webmaster@1: 
webmaster@1:   drupal_json($matches);
webmaster@1: }