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Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 400 and 401]

   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  
  42  $pageid = required_param('pageid', PARAM_TEXT);
  43  $compare = required_param('compare', PARAM_INT);
  44  $comparewith = required_param('comparewith', PARAM_INT);
  45  
  46  if (!$page = wiki_get_page($pageid)) {
  47      throw new \moodle_exception('incorrectpageid', 'wiki');
  48  }
  49  
  50  if (!$subwiki = wiki_get_subwiki($page->subwikiid)) {
  51      throw new \moodle_exception('incorrectsubwikiid', 'wiki');
  52  }
  53  
  54  if (!$wiki = wiki_get_wiki($subwiki->wikiid)) {
  55      throw new \moodle_exception('incorrectwikiid', 'wiki');
  56  }
  57  
  58  if (!$cm = get_coursemodule_from_instance('wiki', $wiki->id)) {
  59      throw new \moodle_exception('invalidcoursemodule');
  60  }
  61  
  62  $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  63  
  64  if ($compare >= $comparewith) {
  65      throw new \moodle_exception('cannotcomparenewerversion', 'wiki');
  66  }
  67  
  68  require_course_login($course, true, $cm);
  69  
  70  if (!wiki_user_can_view($subwiki, $wiki)) {
  71      throw new \moodle_exception('cannotviewpage', 'wiki');
  72  }
  73  
  74  $wikipage = new page_wiki_diff($wiki, $subwiki, $cm, 'modulepage');
  75  
  76  $wikipage->set_page($page);
  77  $wikipage->set_comparison($compare, $comparewith);
  78  
  79  $event = \mod_wiki\event\page_diff_viewed::create(
  80          array(
  81              'context' => context_module::instance($cm->id),
  82              'objectid' => $pageid,
  83              'other' => array(
  84                  'comparewith' => $comparewith,
  85                  'compare' => $compare
  86                  )
  87              ));
  88  $event->add_record_snapshot('wiki_pages', $page);
  89  $event->add_record_snapshot('wiki', $wiki);
  90  $event->add_record_snapshot('wiki_subwikis', $subwiki);
  91  $event->trigger();
  92  
  93  $wikipage->print_header();
  94  
  95  $wikipage->print_content();
  96  
  97  $wikipage->print_footer();