lib/WikiDB/backend/dumb/MostRecentIter.php

   1 <?php // -*-php-*-
   2 rcs_id('$Id: MostRecentIter.php,v 1.2 2002-02-08 22:51:26 lakka Exp $');
   3
   4 require_once('lib/WikiDB/backend.php');
   5
   6
   7 /**
   8  * An inefficient but general most_recent iterator.
   9  *
  10  * This iterator will work with any backends.
  11  */
  12 class WikiDB_backend_dumb_MostRecentIter
  13 extends WikiDB_backend_iterator
  14 {
  15     function WikiDB_backend_dumb_MostRecentIter(&$backend, &$pages, $params) {
  16         extract($params);
  17         if ($exclude_major_revisions)
  18             $include_minor_revisions = true;
  19
  20                 $reverse = $since < 0;
  21                 if($reverse){$since = -$since;}
  22         $this->_revisions = array();
  23         while ($page = $pages->next()) {
  24             $revs = $backend->get_all_revisions($page['pagename']);
  25             while ($revision = &$revs->next()) {
  26                 $vdata = &$revision['versiondata'];
  27                 assert(is_array($vdata));
  28                 if (!empty($vdata['is_minor_edit'])) {
  29                     if (!$include_minor_revisions)
  30                         continue;
  31                 }
  32                 else {
  33                     if ($exclude_major_revisions)
  34                         continue;
  35                 }
  36                                 if ($reverse){
  37                                     if ($vdata['mtime'] > $since) {
  38                                             break;
  39                                         }
  40                                 }
  41                 elseif (!empty($since) && $vdata['mtime'] < $since)
  42                     break;
  43
  44                 $this->_revisions[] = $revision;
  45
  46                 if (!$include_all_revisions)
  47                     break;
  48             }
  49             $revs->free();
  50         }
  51         if($reverse){
  52                 usort($this->_revisions, 'WikiDB_backend_dumb_MostRecentIter_sortf_rev');
  53                 }
  54         else usort($this->_revisions, 'WikiDB_backend_dumb_MostRecentIter_sortf');
  55         if (!empty($limit) && $limit < count($this->_revisions))
  56             array_splice($this->_revisions, $limit);
  57     }
  58
  59     function next() {
  60         return array_shift($this->_revisions);
  61     }
  62
  63     function free() {
  64         unset($this->_revisions);
  65     }
  66 }
  67
  68 function WikiDB_backend_dumb_MostRecentIter_sortf($a, $b) {
  69     $acreated = $a['versiondata']['mtime'];
  70     $bcreated = $b['versiondata']['mtime'];
  71     return $bcreated - $acreated;
  72 }
  73
  74 function WikiDB_backend_dumb_MostRecentIter_sortf_rev($a, $b) {
  75     $acreated = $a['versiondata']['mtime'];
  76     $bcreated = $b['versiondata']['mtime'];
  77     return $acreated - $bcreated;
  78 }
  79
  80 // (c-file-style: "gnu")
  81 // Local Variables:
  82 // mode: php
  83 // tab-width: 8
  84 // c-basic-offset: 4
  85 // c-hanging-comment-ender-p: nil
  86 // indent-tabs-mode: nil
  87 // End:
  88 ?>