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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402]

   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  use mod_quiz\local\access_rule_base;
  18  use mod_quiz\quiz_settings;
  19  
  20  /**
  21   * A rule enforcing open and close dates.
  22   *
  23   * @package   quizaccess_openclosedate
  24   * @copyright 2009 Tim Hunt
  25   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26   */
  27  class quizaccess_openclosedate extends access_rule_base {
  28  
  29      public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits) {
  30          // This rule is always used, even if the quiz has no open or close date.
  31          return new self($quizobj, $timenow);
  32      }
  33  
  34      public function prevent_access() {
  35          $message = get_string('notavailable', 'quizaccess_openclosedate');
  36  
  37          if ($this->timenow < $this->quiz->timeopen) {
  38              return $message;
  39          }
  40  
  41          if (!$this->quiz->timeclose) {
  42              return false;
  43          }
  44  
  45          if ($this->timenow <= $this->quiz->timeclose) {
  46              return false;
  47          }
  48  
  49          if ($this->quiz->overduehandling != 'graceperiod') {
  50              return $message;
  51          }
  52  
  53          if ($this->timenow <= $this->quiz->timeclose + $this->quiz->graceperiod) {
  54              return false;
  55          }
  56  
  57          return $message;
  58      }
  59  
  60      public function is_finished($numprevattempts, $lastattempt) {
  61          return $this->quiz->timeclose && $this->timenow > $this->quiz->timeclose;
  62      }
  63  
  64      public function end_time($attempt) {
  65          if ($this->quiz->timeclose) {
  66              return $this->quiz->timeclose;
  67          }
  68          return false;
  69      }
  70  
  71      public function time_left_display($attempt, $timenow) {
  72          // If this is a teacher preview after the close date, do not show
  73          // the time.
  74          if ($attempt->preview && $timenow > $this->quiz->timeclose) {
  75              return false;
  76          }
  77          // Otherwise, return to the time left until the close date, providing that is
  78          // less than QUIZ_SHOW_TIME_BEFORE_DEADLINE.
  79          $endtime = $this->end_time($attempt);
  80          if ($endtime !== false && $timenow > $endtime - QUIZ_SHOW_TIME_BEFORE_DEADLINE) {
  81              return $endtime - $timenow;
  82          }
  83          return false;
  84      }
  85  }