mod/wiki/filter.php

   1 <?PHP // $Id$
   2     //This function provides automatic linking to
   3     //wiki pages when its page title is found inside every Moodle text
   4     //It's based in the glosssary filter by Williams Castillo
   5     //Modifications by mchurch. Enjoy! :-)
   6
   7     require_once($CFG->dirroot.'/mod/wiki/lib.php');
   8
   9     function wiki_filter($courseid, $text) {
  10
  11         global $CFG;
  12
  13         static $nothingtodo;
  14         static $wikipagelist;
  15
  16         if (!empty($nothingtodo)) {   // We've been here in this page already
  17             return $text;
  18         }
  19
  20         if (empty($courseid)) {
  21             $courseid = SITEID;
  22         }
  23
  24 /// Create a list of all the wikis to search for.  It may be cached already.
  25
  26         if (empty($wikipagelist)) {
  27
  28         /// Get all wikis for this course.
  29             if (!$wikis = wiki_get_course_wikis($courseid)) {
  30                 $nothingtodo = true;
  31                 return $text;
  32             }
  33
  34             $wikipagelist = array();
  35
  36         /// Walk through each wiki, and get entries.
  37             foreach ($wikis as $wiki) {
  38                 if ($wiki_entries = wiki_get_entries($wiki)) {
  39
  40                 /// Walk through each entry and get the pages.
  41                     foreach ($wiki_entries as $wiki_entry) {
  42                         if ($wiki_pages = get_records('wiki_pages', 'wiki', $wiki_entry->id, 'pagename, version DESC')) {
  43                         /// Walk through each page and filter.
  44                             $wikientries = array();
  45                             foreach ($wiki_pages as $wiki_page) {
  46                                 if (!in_array($wiki_page->pagename, $wikientries)) {
  47                                     $startlink = '<a class="wiki autolink" title="Wiki" href="'
  48                                             .$CFG->wwwroot.'/mod/wiki/view.php?wid='.$wiki->id
  49                                             .'&amp;userid='.$wiki_entry->userid
  50                                             .'&amp;groupid='.$wiki_entry->groupid
  51                                             .'&amp;page='.$wiki_page->pagename.'">';
  52                                     $wikipagelist[] = new filterobject($wiki_page->pagename, $startlink, '</a>', false, true);
  53                                     $wikientries[] = $wiki_page->pagename;
  54                                 }
  55                             }
  56                         }
  57                     }
  58                 }
  59             }
  60         }
  61
  62         return filter_phrases($text, $wikipagelist);
  63     }
  64
  65 ?>