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<?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/>.
/**
* This page deals with processing responses during an attempt at a quiz.
*
* People will normally arrive here from a form submission on attempt.php or
* summary.php, and once the responses are processed, they will be redirected to
* attempt.php or summary.php.
*
* This code used to be near the top of attempt.php, if you are looking for CVS history.
*
* @package mod
* @subpackage quiz
* @copyright 2009 Tim Hunt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(__FILE__) . '/../../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();
// Get submitted parameters.
$attemptid = required_param('attempt', PARAM_INT);
$next = optional_param('next', false, PARAM_BOOL);
$thispage = optional_param('thispage', 0, PARAM_INT);
$nextpage = optional_param('nextpage', 0, PARAM_INT);
$finishattempt = optional_param('finishattempt', 0, PARAM_BOOL);
$timeup = optional_param('timeup', 0, PARAM_BOOL); // True if form was submitted by timer.
$scrollpos = optional_param('scrollpos', '', PARAM_RAW);
$transaction = $DB->start_delegated_transaction();
$attemptobj = quiz_attempt::create($attemptid);
// Set $nexturl now.
if ($next) {
$page = $nextpage;
} else {
$page = $thispage;
}
if ($page == -1) {
$nexturl = $attemptobj->summary_url();
} else {
$nexturl = $attemptobj->attempt_url(0, $page);
if ($scrollpos !== '') {
$nexturl->param('scrollpos', $scrollpos);
}
}
// We treat automatically closed attempts just like normally closed attempts
if ($timeup) {
$finishattempt = 1;
}
// Check login.
require_login($attemptobj->get_course(), false, $attemptobj->get_cm());
require_sesskey();
// Check that this attempt belongs to this user.
if ($attemptobj->get_userid() != $USER->id) {
throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'notyourattempt');
}
// 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_quiz_exception($attemptobj->get_quizobj(),
'attemptalreadyclosed', null, $attemptobj->review_url());
}
// Don't log - we will end with a redirect to a page that is logged.
if (!$finishattempt) {
// Just process the responses for this page and go to the next page.
try {
$attemptobj->process_all_actions($timenow);
} catch (question_out_of_sequence_exception $e) {
print_error('submissionoutofsequencefriendlymessage', 'question',
$attemptobj->attempt_url(0, $thispage));
}
$transaction->allow_commit();
redirect($nexturl);
}
// Otherwise, we have been asked to finish attempt, so do that.
// Log the end of this attempt.
add_to_log($attemptobj->get_courseid(), 'quiz', 'close attempt',
'review.php?attempt=' . $attemptobj->get_attemptid(),
$attemptobj->get_quizid(), $attemptobj->get_cmid());
// Update the quiz attempt record.
$attemptobj->finish_attempt($timenow);
// Send the user to the review page.
$transaction->allow_commit();
redirect($attemptobj->review_url());
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