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Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403]

   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * This file contains all necessary code to view a diff page
  20   *
  21   * @package mod_wiki
  22   * @copyright 2009 Marc Alier, Jordi Piguillem marc.alier@upc.edu
  23   * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu
  24   *
  25   * @author Jordi Piguillem
  26   * @author Marc Alier
  27   * @author David Jimenez
  28   * @author Josep Arus
  29   * @author Kenneth Riba
  30   *
  31   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32   */
  33  
  34  require_once('../../config.php');
  35  
  36  require_once($CFG->dirroot . '/mod/wiki/lib.php');
  37  require_once($CFG->dirroot . '/mod/wiki/locallib.php');
  38  require_once($CFG->dirroot . '/mod/wiki/pagelib.php');
  39  
  40  require_once($CFG->dirroot . '/mod/wiki/diff/difflib.php');
  41  require_once($CFG->dirroot . '/mod/wiki/diff/diff_nwiki.php');
  42  
  43  $pageid = required_param('pageid', PARAM_TEXT);
  44  $compare = required_param('compare', PARAM_INT);
  45  $comparewith = required_param('comparewith', PARAM_INT);
  46  
  47  if (!$page = wiki_get_page($pageid)) {
  48      print_error('incorrectpageid', 'wiki');
  49  }
  50  
  51  if (!$subwiki = wiki_get_subwiki($page->subwikiid)) {
  52      print_error('incorrectsubwikiid', 'wiki');
  53  }
  54  
  55  if (!$wiki = wiki_get_wiki($subwiki->wikiid)) {
  56      print_error('incorrectwikiid', 'wiki');
  57  }
  58  
  59  if (!$cm = get_coursemodule_from_instance('wiki', $wiki->id)) {
  60      print_error('invalidcoursemodule');
  61  }
  62  
  63  $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  64  
  65  if ($compare >= $comparewith) {
  66      print_error('cannotcomparenewerversion', 'wiki');
  67  }
  68  
  69  require_course_login($course, true, $cm);
  70  
  71  if (!wiki_user_can_view($subwiki, $wiki)) {
  72      print_error('cannotviewpage', 'wiki');
  73  }
  74  
  75  $wikipage = new page_wiki_diff($wiki, $subwiki, $cm);
  76  
  77  $wikipage->set_page($page);
  78  $wikipage->set_comparison($compare, $comparewith);
  79  
  80  $event = \mod_wiki\event\page_diff_viewed::create(
  81          array(
  82              'context' => context_module::instance($cm->id),
  83              'objectid' => $pageid,
  84              'other' => array(
  85                  'comparewith' => $comparewith,
  86                  'compare' => $compare
  87                  )
  88              ));
  89  $event->add_record_snapshot('wiki_pages', $page);
  90  $event->add_record_snapshot('wiki', $wiki);
  91  $event->add_record_snapshot('wiki_subwikis', $subwiki);
  92  $event->trigger();
  93  
  94  $wikipage->print_header();
  95  
  96  $wikipage->print_content();
  97  
  98  $wikipage->print_footer();