Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Thisscript processes ajax auto-save requests during the quiz.

 *

 * @package    mod_quiz

 * @copyright  2013 The Open University

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

define('AJAX_SCRIPT', true);

require_once(__DIR__ . '/../../config.php');

require_once($CFG->dirroot . '/mod/quiz/locallib.php');

// Remember the current time as the time any responses were submitted

// (so as to make sure students don't get penalized for slow processing on this page).

$timenow = time();

require_sesskey();

// Get submitted parameters.

$attemptid = required_param('attempt',  PARAM_INT);

$thispage  = optional_param('thispage', 0, PARAM_INT);

$cmid      = optional_param('cmid', null, PARAM_INT);

$transaction = $DB->start_delegated_transaction();

$attemptobj = quiz_create_attempt_handling_errors($attemptid, $cmid);

// Check login.

require_login($attemptobj->get_course(), false, $attemptobj->get_cm());

// Check that this attempt belongs to this user.

if ($attemptobj->get_userid() != $USER->id) {

    throw new moodle_exception('notyourattempt', 'quiz', $attemptobj->view_url());

}

// Check capabilities.

if (!$attemptobj->is_preview_user()) {

    $attemptobj->require_capability('mod/quiz:attempt');

}

// If the attempt is already closed, send them to the review page.

if ($attemptobj->is_finished()) {

    throw new moodle_exception('attemptalreadyclosed', 'quiz', $attemptobj->review_url());

}

$attemptobj->process_auto_save($timenow);

$transaction->allow_commit();

// Calculate time remaining.

$timeleft = $attemptobj->get_time_left_display($timenow);

// Build response, only returning timeleft if quiz in-progress

// has a time limit.

$r = new stdClass();

$r->status = "OK";

if ($timeleft !== false) {

    $r->timeleft = $timeleft;

}

echo json_encode($r);