lib/WikiDB/backend/dumb/MostRecentIter.php

   1 <?php // -*-php-*-
   2 rcs_id('$Id: MostRecentIter.php,v 1.1 2001-09-18 19:16:23 dairiki 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         $this->_revisions = array();
  21         while ($page = $pages->next()) {
  22             $revs = $backend->get_all_revisions($page['pagename']);
  23             while ($revision = &$revs->next()) {
  24                 $vdata = &$revision['versiondata'];
  25                 assert(is_array($vdata));
  26                 if (!empty($vdata['is_minor_edit'])) {
  27                     if (!$include_minor_revisions)
  28                         continue;
  29                 }
  30                 else {
  31                     if ($exclude_major_revisions)
  32                         continue;
  33                 }
  34                 if (!empty($since) && $vdata['mtime'] < $since)
  35                     break;
  36
  37                 $this->_revisions[] = $revision;
  38
  39                 if (!$include_all_revisions)
  40                     break;
  41             }
  42             $revs->free();
  43         }
  44
  45         usort($this->_revisions, 'WikiDB_backend_dumb_MostRecentIter_sortf');
  46         if (!empty($limit) && $limit < count($this->_revisions))
  47             array_splice($this->_revisions, $limit);
  48     }
  49
  50     function next() {
  51         return array_shift($this->_revisions);
  52     }
  53
  54     function free() {
  55         unset($this->_revisions);
  56     }
  57 }
  58
  59 function WikiDB_backend_dumb_MostRecentIter_sortf($a, $b) {
  60     $acreated = $a['versiondata']['mtime'];
  61     $bcreated = $b['versiondata']['mtime'];
  62     return $bcreated - $acreated;
  63 }
  64
  65 // (c-file-style: "gnu")
  66 // Local Variables:
  67 // mode: php
  68 // tab-width: 8
  69 // c-basic-offset: 4
  70 // c-hanging-comment-ender-p: nil
  71 // indent-tabs-mode: nil
  72 // End:
  73 ?>