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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * @package    qtype_match
  19   * @copyright  2011 David Mudrak <david@moodle.com>
  20   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  21   */
  22  
  23  defined('MOODLE_INTERNAL') || die();
  24  
  25  /**
  26   * Matching question type conversion handler.
  27   */
  28  class moodle1_qtype_match_handler extends moodle1_qtype_handler {
  29  
  30      /**
  31       * @return array
  32       */
  33      public function get_question_subpaths() {
  34          return array(
  35              'MATCHOPTIONS',
  36              'MATCHS/MATCH',
  37          );
  38      }
  39  
  40      /**
  41       * Appends the match specific information to the question.
  42       */
  43      public function process_question(array $data, array $raw) {
  44          global $CFG;
  45  
  46          // Populate the list of matches first to get their ids.
  47          // Note that the field is re-populated on restore anyway but let us
  48          // do our best to produce valid backup files.
  49          $matchids = array();
  50          if (isset($data['matchs']['match'])) {
  51              foreach ($data['matchs']['match'] as $match) {
  52                  $matchids[] = $match['id'];
  53              }
  54          }
  55  
  56          // Convert match options.
  57          if (isset($data['matchoptions'])) {
  58              $matchoptions = $data['matchoptions'][0];
  59          } else {
  60              $matchoptions = array('shuffleanswers' => 1);
  61          }
  62          $matchoptions['id'] = $this->converter->get_nextid();
  63          $matchoptions['subquestions'] = implode(',', $matchids);
  64          $this->write_xml('matchoptions', $matchoptions, array('/matchoptions/id'));
  65  
  66          // Convert matches.
  67          $this->xmlwriter->begin_tag('matches');
  68          if (isset($data['matchs']['match'])) {
  69              foreach ($data['matchs']['match'] as $match) {
  70                  // Replay the upgrade step 2009072100.
  71                  $match['questiontextformat'] = 0;
  72                  if ($CFG->texteditors !== 'textarea' and $data['oldquestiontextformat'] == FORMAT_MOODLE) {
  73                      $match['questiontext'] = text_to_html($match['questiontext'], false, false, true);
  74                      $match['questiontextformat'] = FORMAT_HTML;
  75                  } else {
  76                      $match['questiontextformat'] = $data['oldquestiontextformat'];
  77                  }
  78  
  79                  $match['questiontext'] = $this->migrate_files(
  80                          $match['questiontext'], 'qtype_match', 'subquestion', $match['id']);
  81                  $this->write_xml('match', $match, array('/match/id'));
  82              }
  83          }
  84          $this->xmlwriter->end_tag('matches');
  85      }
  86  }