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Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 and 403]

   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   * This page is the entry page into the quiz UI. Displays information about the
  19   * quiz to students and teachers, and lets students see their previous attempts.
  20   *
  21   * @package   mod_quiz
  22   * @category  grade
  23   * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
  24   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  use mod_quiz\quiz_attempt;
  28  use mod_quiz\quiz_settings;
  29  
  30  require_once(__DIR__ . '/../../config.php');
  31  require_once($CFG->dirroot . '/mod/quiz/locallib.php');
  32  require_once($CFG->dirroot . '/mod/quiz/report/reportlib.php');
  33  
  34  
  35  $id = required_param('id', PARAM_INT);
  36  $userid = optional_param('userid', 0, PARAM_INT);
  37  
  38  $quizobj = quiz_settings::create_for_cmid($id);
  39  $quiz = $quizobj->get_quiz();
  40  $cm = $quizobj->get_cm();
  41  $course = $quizobj->get_course();
  42  require_login($course, false, $cm);
  43  
  44  $reportlist = quiz_report_list($quizobj->get_context());
  45  if (empty($reportlist) || $userid == $USER->id) {
  46      // If the user cannot see reports, or can see reports but is looking
  47      // at their own grades, redirect them to the view.php page.
  48      // (The looking at their own grades case is unlikely, since users who
  49      // appear in the gradebook are unlikely to be able to see quiz reports,
  50      // but it is possible.)
  51      redirect(new moodle_url('/mod/quiz/view.php', ['id' => $cm->id]));
  52  }
  53  
  54  // Now we know the user is interested in reports. If they are interested in a
  55  // specific other user, try to send them to the most appropriate attempt review page.
  56  if ($userid) {
  57  
  58      // Work out which attempt is most significant from a grading point of view.
  59      $attempts = quiz_get_user_attempts($quiz->id, $userid, 'finished');
  60      $attempt = null;
  61      switch ($quiz->grademethod) {
  62          case QUIZ_ATTEMPTFIRST:
  63              $attempt = reset($attempts);
  64              break;
  65  
  66          case QUIZ_ATTEMPTLAST:
  67          case QUIZ_GRADEAVERAGE:
  68              $attempt = end($attempts);
  69              break;
  70  
  71          case QUIZ_GRADEHIGHEST:
  72              $maxmark = 0;
  73              foreach ($attempts as $at) {
  74                  // Operator >=, since we want to most recent relevant attempt.
  75                  if ((float) $at->sumgrades >= $maxmark) {
  76                      $maxmark = $at->sumgrades;
  77                      $attempt = $at;
  78                  }
  79              }
  80              break;
  81      }
  82  
  83      // If the user can review the relevant attempt, redirect to it.
  84      if ($attempt) {
  85          $attemptobj = new quiz_attempt($attempt, $quiz, $cm, $course, false);
  86          if ($attemptobj->is_review_allowed()) {
  87              $attemptobj->load_questions();
  88              redirect($attemptobj->review_url());
  89          }
  90      }
  91  
  92      // Otherwise, fall thorugh to the generic case.
  93  }
  94  
  95  // Send the user to the first report they can see.
  96  redirect(new moodle_url('/mod/quiz/report.php', [
  97          'id' => $cm->id, 'mode' => reset($reportlist)]));