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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   * Defines the form that limits student's access to attempt a quiz.
  19   *
  20   * @package   mod_quiz
  21   * @copyright 2011 The Open University
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->libdir.'/formslib.php');
  29  
  30  
  31  /**
  32   * A form that limits student's access to attempt a quiz.
  33   *
  34   * @copyright  2011 The Open University
  35   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36   */
  37  class mod_quiz_preflight_check_form extends moodleform {
  38  
  39      protected function definition() {
  40          $mform = $this->_form;
  41  
  42          foreach ($this->_customdata['hidden'] as $name => $value) {
  43              if ($name === 'sesskey') {
  44                  continue;
  45              }
  46              $mform->addElement('hidden', $name, $value);
  47              $mform->setType($name, PARAM_INT);
  48          }
  49  
  50          foreach ($this->_customdata['rules'] as $rule) {
  51              if ($rule->is_preflight_check_required($this->_customdata['attemptid'])) {
  52                  $rule->add_preflight_check_form_fields($this, $mform,
  53                          $this->_customdata['attemptid']);
  54              }
  55          }
  56  
  57          $this->add_action_buttons(true, get_string('continue'));
  58      }
  59  
  60      public function validation($data, $files) {
  61          $errors = parent::validation($data, $files);
  62  
  63          foreach ($this->_customdata['rules'] as $rule) {
  64              if ($rule->is_preflight_check_required($this->_customdata['attemptid'])) {
  65                  $errors = $rule->validate_preflight_check($data, $files, $errors,
  66                          $this->_customdata['attemptid']);
  67              }
  68          }
  69  
  70          return $errors;
  71      }
  72  }