[Summary view]

   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   * Defines backup_quiz_activity_task class
  19   *
  20   * @package     mod_quiz
  21   * @category    backup
  22   * @copyright   2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
  23   * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->dirroot . '/mod/quiz/backup/moodle2/backup_quiz_stepslib.php');
  29  
  30  /**
  31   * Provides the steps to perform one complete backup of the Quiz instance
  32   *
  33   * @copyright  2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
  34   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class backup_quiz_activity_task extends backup_activity_task {
  37  
  38      /**
  39       * No specific settings for this activity
  40       */
  41      protected function define_my_settings() {
  42      }
  43  
  44      /**
  45       * Defines backup steps to store the instance data and required questions
  46       */
  47      protected function define_my_steps() {
  48          // Generate the quiz.xml file containing all the quiz information
  49          // and annotating used questions.
  50          $this->add_step(new backup_quiz_activity_structure_step('quiz_structure', 'quiz.xml'));
  51  
  52          // Note: Following  steps must be present
  53          // in all the activities using question banks (only quiz for now)
  54          // TODO: Specialise these step to a new subclass of backup_activity_task.
  55  
  56          // Process all the annotated questions to calculate the question
  57          // categories needing to be included in backup for this activity
  58          // plus the categories belonging to the activity context itself.
  59          $this->add_step(new backup_calculate_question_categories('activity_question_categories'));
  60  
  61          // Clean backup_temp_ids table from questions. We already
  62          // have used them to detect question_categories and aren't
  63          // needed anymore.
  64          $this->add_step(new backup_delete_temp_questions('clean_temp_questions'));
  65      }
  66  
  67      /**
  68       * Encodes URLs to the index.php and view.php scripts
  69       *
  70       * @param string $content some HTML text that eventually contains URLs to the activity instance scripts
  71       * @return string the content with the URLs encoded
  72       */
  73      public static function encode_content_links($content) {
  74          global $CFG;
  75  
  76          $base = preg_quote($CFG->wwwroot, '/');
  77  
  78          // Link to the list of quizzes.
  79          $search="/(".$base."\/mod\/quiz\/index.php\?id\=)([0-9]+)/";
  80          $content= preg_replace($search, '$@QUIZINDEX*$2@$', $content);
  81  
  82          // Link to quiz view by moduleid.
  83          $search="/(".$base."\/mod\/quiz\/view.php\?id\=)([0-9]+)/";
  84          $content= preg_replace($search, '$@QUIZVIEWBYID*$2@$', $content);
  85  
  86          // Link to quiz view by quizid.
  87          $search="/(".$base."\/mod\/quiz\/view.php\?q\=)([0-9]+)/";
  88          $content= preg_replace($search, '$@QUIZVIEWBYQ*$2@$', $content);
  89  
  90          return $content;
  91      }
  92  }