/**
* Static function to create a new quiz_attempt object given an attemptid.
*
* @param integer $attemptid the attempt id.
* @return quiz_attempt the new quiz_attempt object
*/
public static function create($attemptid)
{
global $DB;
if (!($attempt = quiz_load_attempt($attemptid))) {
throw new moodle_exception('invalidattemptid', 'quiz');
}
if (!($quiz = $DB->get_record('quiz', array('id' => $attempt->quiz)))) {
throw new moodle_exception('invalidquizid', 'quiz');
}
if (!($course = $DB->get_record('course', array('id' => $quiz->course)))) {
throw new moodle_exception('invalidcoursemodule');
}
if (!($cm = get_coursemodule_from_instance('quiz', $quiz->id, $course->id))) {
throw new moodle_exception('invalidcoursemodule');
}
// Update quiz with override information
$quiz = quiz_update_effective_access($quiz, $attempt->userid);
return new quiz_attempt($attempt, $quiz, $cm, $course);
}
/**
* Constructor from just an attemptid.
*
* @param integer $attemptid the id of the attempt to load. We automatically load the
* associated quiz, course, etc.
*/
function __construct($attemptid)
{
global $DB;
if (!($this->attempt = quiz_load_attempt($attemptid))) {
throw new moodle_exception('invalidattemptid', 'quiz');
}
if (!($quiz = $DB->get_record('quiz', array('id' => $this->attempt->quiz)))) {
throw new moodle_exception('invalidquizid', 'quiz');
}
if (!($course = $DB->get_record('course', array('id' => $quiz->course)))) {
throw new moodle_exception('invalidcoursemodule');
}
if (!($cm = get_coursemodule_from_instance('quiz', $quiz->id, $course->id))) {
throw new moodle_exception('invalidcoursemodule');
}
parent::__construct($quiz, $cm, $course);
$this->preload_questions();
$this->preload_question_states();
}
