* Simple callback page to handle the many hits for quiz status when running
*
* This is used so the javascript can act accordingly to the instructor's actions
*
* @package mod_activequiz
* @author John Hoopes <*****@*****.**>
* @copyright 2014 University of Wisconsin - Madison
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('AJAX_SCRIPT', true);
require_once '../../config.php';
require_sesskey();
// if they've passed the sesskey information grab the session info
$sessionid = required_param('sessionid', PARAM_INT);
// get JSONlib to return json response
$jsonlib = new \mod_activequiz\utils\jsonlib();
// First determine if we get a session.
if (!($session = $DB->get_record('activequiz_sessions', array('id' => $sessionid)))) {
$jsonlib->send_error('invalid session');
}
// Next we need to get the active quiz object and course module object to make sure a student can log in
// for the session asked for
if (!($activequiz = $DB->get_record('activequiz', array('id' => $session->activequizid)))) {
$jsonlib->send_error('invalid request');
} else {
// place within try/catch in order to catch errors/redirects and just display invalid request.
try {
$course = $DB->get_record('course', array('id' => $activequiz->course), '*', MUST_EXIST);
$cm = get_coursemodule_from_instance('activequiz', $activequiz->id, $course->id, false, MUST_EXIST);
require_login($course->id, false, $cm, false, true);
} catch (Exception $e) {
/**
* Handles the action specified
*
*/
public function handle_action()
{
global $PAGE, $DB;
// check if a session is open. If so display error.
if ($sessions = $DB->get_records('activequiz_sessions', array('activequizid' => $this->RTQ->getRTQ()->id, 'sessionopen' => '1'))) {
$this->RTQ->get_renderer()->print_editpage_header();
$this->RTQ->get_renderer()->editpage_opensession();
$this->RTQ->get_renderer()->end_editpage();
return;
// return early to stop continuation.
}
switch ($this->action) {
case 'dragdrop':
// this is a javascript callack case for the drag and drop of questions using ajax
$jsonlib = new \mod_activequiz\utils\jsonlib();
$questionorder = optional_param('questionorder', '', PARAM_RAW);
if ($questionorder === '') {
$jsonlib->send_error('invalid request');
}
$questionorder = explode(',', $questionorder);
if ($this->RTQ->get_questionmanager()->set_full_order($questionorder) === true) {
$jsonlib->set('success', 'true');
$jsonlib->send_response();
} else {
$jsonlib->send_error('unable to re-sort questions');
}
break;
case 'moveup':
$questionid = required_param('questionid', PARAM_INT);
if ($this->RTQ->get_questionmanager()->move_question('up', $questionid)) {
$type = 'success';
$message = get_string('qmovesuccess', 'activequiz');
} else {
$type = 'error';
$message = get_string('qmoveerror', 'activequiz');
}
$this->RTQ->get_renderer()->setMessage($type, $message);
$this->RTQ->get_renderer()->print_editpage_header($this->RTQ);
$this->list_questions();
$this->RTQ->get_renderer()->end_editpage();
break;
case 'movedown':
$questionid = required_param('questionid', PARAM_INT);
if ($this->RTQ->get_questionmanager()->move_question('down', $questionid)) {
$type = 'success';
$message = get_string('qmovesuccess', 'activequiz');
} else {
$type = 'error';
$message = get_string('qmoveerror', 'activequiz');
}
$this->RTQ->get_renderer()->setMessage($type, $message);
$this->RTQ->get_renderer()->print_editpage_header($this->RTQ);
$this->list_questions();
$this->RTQ->get_renderer()->end_editpage();
break;
case 'addquestion':
$questionid = required_param('questionid', PARAM_INT);
$this->RTQ->get_questionmanager()->add_question($questionid);
break;
case 'editquestion':
$questionid = required_param('rtqquestionid', PARAM_INT);
$this->RTQ->get_questionmanager()->edit_question($questionid);
break;
case 'deletequestion':
$questionid = required_param('questionid', PARAM_INT);
if ($this->RTQ->get_questionmanager()->delete_question($questionid)) {
$type = 'success';
$message = get_string('qdeletesucess', 'activequiz');
} else {
$type = 'error';
$message = get_string('qdeleteerror', 'activequiz');
}
$this->RTQ->get_renderer()->setMessage($type, $message);
$this->RTQ->get_renderer()->print_editpage_header($this->RTQ);
$this->list_questions();
$this->RTQ->get_renderer()->end_editpage();
break;
case 'listquestions':
// default is to list the questions
$this->RTQ->get_renderer()->print_editpage_header($this->RTQ);
$this->list_questions();
$this->RTQ->get_renderer()->end_editpage();
break;
}
}
