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   1  <?php
   2  // $Id: taxonomy.pages.inc,v 1.9.2.1 2009/04/27 11:49:05 goba Exp $
   3  
   4  /**
   5   * @file
   6   * Page callbacks for the taxonomy module.
   7   */
   8  
   9  /**
  10   * Menu callback; displays all nodes associated with a term.
  11   */
  12  function taxonomy_term_page($str_tids = '', $depth = 0, $op = 'page') {
  13    $terms = taxonomy_terms_parse_string($str_tids);
  14    if ($terms['operator'] != 'and' && $terms['operator'] != 'or') {
  15      drupal_not_found();
  16    }
  17  
  18    if ($terms['tids']) {
  19      $result = db_query(db_rewrite_sql('SELECT t.tid, t.name FROM {term_data} t WHERE t.tid IN ('. db_placeholders($terms['tids']) .')', 't', 'tid'), $terms['tids']);
  20      $tids = array(); // we rebuild the $tids-array so it only contains terms the user has access to.
  21      $names = array();
  22      while ($term = db_fetch_object($result)) {
  23        $tids[] = $term->tid;
  24        $names[] = $term->name;
  25      }
  26  
  27      if ($names) {
  28        $title = implode(', ', $names);
  29        drupal_set_title(check_plain($title));
  30  
  31        switch ($op) {
  32          case 'page':
  33            // Build breadcrumb based on first hierarchy of first term:
  34            $current->tid = $tids[0];
  35            $breadcrumb = array();
  36            while ($parents = taxonomy_get_parents($current->tid)) {
  37              $current = array_shift($parents);
  38              $breadcrumb[] = l($current->name, 'taxonomy/term/'. $current->tid);
  39            }
  40            $breadcrumb[] = l(t('Home'), NULL);
  41            $breadcrumb = array_reverse($breadcrumb);
  42            drupal_set_breadcrumb($breadcrumb);
  43  
  44            $output = theme('taxonomy_term_page', $tids, taxonomy_select_nodes($tids, $terms['operator'], $depth, TRUE));
  45            drupal_add_feed(url('taxonomy/term/'. $str_tids .'/'. $depth .'/feed'), 'RSS - '. $title);
  46            return $output;
  47            break;
  48  
  49          case 'feed':
  50            $channel['link'] = url('taxonomy/term/'. $str_tids .'/'. $depth, array('absolute' => TRUE));
  51            $channel['title'] = variable_get('site_name', 'Drupal') .' - '. $title;
  52            // Only display the description if we have a single term, to avoid clutter and confusion.
  53            if (count($tids) == 1) {
  54              $term = taxonomy_get_term($tids[0]);
  55              // HTML will be removed from feed description, so no need to filter here.
  56              $channel['description'] = $term->description;
  57            }
  58  
  59            $result = taxonomy_select_nodes($tids, $terms['operator'], $depth, FALSE);
  60            $items = array(); 
  61            while ($row = db_fetch_object($result)) {
  62              $items[] = $row->nid;
  63            }
  64  
  65            node_feed($items, $channel);
  66            break;
  67  
  68          default:
  69            drupal_not_found();
  70        }
  71      }
  72      else {
  73        drupal_not_found();
  74      }
  75    }
  76  }
  77  
  78  /**
  79   * Render a taxonomy term page HTML output.
  80   *
  81   * @param $tids
  82   *   An array of term ids.
  83   * @param $result
  84   *   A pager_query() result, such as that performed by taxonomy_select_nodes().
  85   *
  86   * @ingroup themeable
  87   */
  88  function theme_taxonomy_term_page($tids, $result) {
  89    drupal_add_css(drupal_get_path('module', 'taxonomy') .'/taxonomy.css');
  90  
  91    $output = '';
  92  
  93    // Only display the description if we have a single term, to avoid clutter and confusion.
  94    if (count($tids) == 1) {
  95      $term = taxonomy_get_term($tids[0]);
  96      $description = $term->description;
  97  
  98      // Check that a description is set.
  99      if (!empty($description)) {
 100        $output .= '<div class="taxonomy-term-description">';
 101        $output .= filter_xss_admin($description);
 102        $output .= '</div>';
 103      }
 104    }
 105  
 106    $output .= taxonomy_render_nodes($result);
 107  
 108    return $output;
 109  }
 110  
 111  /**
 112   * Helper function for autocompletion
 113   */
 114  function taxonomy_autocomplete($vid, $string = '') {
 115    // The user enters a comma-separated list of tags. We only autocomplete the last tag.
 116    $array = drupal_explode_tags($string);
 117  
 118    // Fetch last tag
 119    $last_string = trim(array_pop($array));
 120    $matches = array();
 121    if ($last_string != '') {
 122      $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);
 123  
 124      $prefix = count($array) ? implode(', ', $array) .', ' : '';
 125  
 126      while ($tag = db_fetch_object($result)) {
 127        $n = $tag->name;
 128        // Commas and quotes in terms are special cases, so encode 'em.
 129        if (strpos($tag->name, ',') !== FALSE || strpos($tag->name, '"') !== FALSE) {
 130          $n = '"'. str_replace('"', '""', $tag->name) .'"';
 131        }
 132        $matches[$prefix . $n] = check_plain($tag->name);
 133      }
 134    }
 135  
 136    drupal_json($matches);
 137  }