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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   * Used by ajax calls to toggle the flagged state of a question in an attempt.
  19   *
  20   * @package    moodlecore
  21   * @subpackage questionengine
  22   * @copyright  2009 The Open University
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  
  27  define('AJAX_SCRIPT', true);
  28  
  29  require_once('../config.php');
  30  require_once($CFG->dirroot . '/question/engine/lib.php');
  31  
  32  // Parameters
  33  $qaid = required_param('qaid', PARAM_INT);
  34  $qubaid = required_param('qubaid', PARAM_INT);
  35  $questionid = required_param('qid', PARAM_INT);
  36  $slot = required_param('slot', PARAM_INT);
  37  $newstate = required_param('newstate', PARAM_BOOL);
  38  $checksum = required_param('checksum', PARAM_ALPHANUM);
  39  
  40  // Check user is logged in.
  41  require_login();
  42  require_sesskey();
  43  
  44  // Check that the requested session really exists
  45  question_flags::update_flag($qubaid, $questionid, $qaid, $slot, $checksum, $newstate);
  46  
  47  echo 'OK';