/**
* Records an attempt at this page
*
* @final
* @global moodle_database $DB
* @param stdClass $context
* @return stdClass Returns the result of the attempt
*/
public final function record_attempt($context)
{
global $DB, $USER, $OUTPUT;
/**
* This should be overridden by each page type to actually check the response
* against what ever custom criteria they have defined
*/
$result = $this->check_answer();
$result->attemptsremaining = 0;
$result->maxattemptsreached = false;
if ($result->noanswer) {
$result->newpageid = $this->properties->id;
// display same page again
$result->feedback = get_string('noanswer', 'lesson');
} else {
if (!has_capability('mod/lesson:manage', $context)) {
$nretakes = $DB->count_records("lesson_grades", array("lessonid" => $this->lesson->id, "userid" => $USER->id));
// record student's attempt
$attempt = new stdClass();
$attempt->lessonid = $this->lesson->id;
$attempt->pageid = $this->properties->id;
$attempt->userid = $USER->id;
$attempt->answerid = $result->answerid;
$attempt->retry = $nretakes;
$attempt->correct = $result->correctanswer;
if ($result->userresponse !== null) {
$attempt->useranswer = $result->userresponse;
}
$attempt->timeseen = time();
// if allow modattempts, then update the old attempt record, otherwise, insert new answer record
$userisreviewing = false;
if (isset($USER->modattempts[$this->lesson->id])) {
$attempt->retry = $nretakes - 1;
// they are going through on review, $nretakes will be too high
$userisreviewing = true;
}
// Only insert a record if we are not reviewing the lesson.
if (!$userisreviewing) {
if ($this->lesson->retake || !$this->lesson->retake && $nretakes == 0) {
$DB->insert_record("lesson_attempts", $attempt);
}
}
// "number of attempts remaining" message if $this->lesson->maxattempts > 1
// displaying of message(s) is at the end of page for more ergonomic display
if (!$result->correctanswer && $result->newpageid == 0) {
// wrong answer and student is stuck on this page - check how many attempts
// the student has had at this page/question
$nattempts = $DB->count_records("lesson_attempts", array("pageid" => $this->properties->id, "userid" => $USER->id, "retry" => $attempt->retry));
// retreive the number of attempts left counter for displaying at bottom of feedback page
if ($nattempts >= $this->lesson->maxattempts) {
if ($this->lesson->maxattempts > 1) {
// don't bother with message if only one attempt
$result->maxattemptsreached = true;
}
$result->newpageid = LESSON_NEXTPAGE;
} else {
if ($this->lesson->maxattempts > 1) {
// don't bother with message if only one attempt
$result->attemptsremaining = $this->lesson->maxattempts - $nattempts;
}
}
}
}
// TODO: merge this code with the jump code below. Convert jumpto page into a proper page id
if ($result->newpageid == 0) {
$result->newpageid = $this->properties->id;
} elseif ($result->newpageid == LESSON_NEXTPAGE) {
$result->newpageid = $this->lesson->get_next_page($this->properties->nextpageid);
}
// Determine default feedback if necessary
if (empty($result->response)) {
if (!$this->lesson->feedback && !$result->noanswer && !($this->lesson->review & !$result->correctanswer && !$result->isessayquestion)) {
// These conditions have been met:
// 1. The lesson manager has not supplied feedback to the student
// 2. Not displaying default feedback
// 3. The user did provide an answer
// 4. We are not reviewing with an incorrect answer (and not reviewing an essay question)
$result->nodefaultresponse = true;
// This will cause a redirect below
} else {
if ($result->isessayquestion) {
$result->response = get_string('defaultessayresponse', 'lesson');
} else {
if ($result->correctanswer) {
$result->response = get_string('thatsthecorrectanswer', 'lesson');
} else {
$result->response = get_string('thatsthewronganswer', 'lesson');
}
}
}
}
if ($result->response) {
if ($this->lesson->review && !$result->correctanswer && !$result->isessayquestion) {
$nretakes = $DB->count_records("lesson_grades", array("lessonid" => $this->lesson->id, "userid" => $USER->id));
$qattempts = $DB->count_records("lesson_attempts", array("userid" => $USER->id, "retry" => $nretakes, "pageid" => $this->properties->id));
if ($qattempts == 1) {
$result->feedback = $OUTPUT->box(get_string("firstwrong", "lesson"), 'feedback');
} else {
$result->feedback = $OUTPUT->BOX(get_string("secondpluswrong", "lesson"), 'feedback');
}
} else {
$class = 'response';
if ($result->correctanswer) {
$class .= ' correct';
//CSS over-ride this if they exist (!important)
} else {
if (!$result->isessayquestion) {
$class .= ' incorrect';
//CSS over-ride this if they exist (!important)
}
}
$options = new stdClass();
$options->noclean = true;
$options->para = true;
$options->overflowdiv = true;
$result->response = file_rewrite_pluginfile_urls($result->response, 'pluginfile.php', $context->id, 'mod_lesson', 'page_responses', $result->answerid);
$result->feedback = $OUTPUT->box(format_text($this->get_contents(), $this->properties->contentsformat, $options), 'generalbox boxaligncenter');
$result->feedback .= '<div class="correctanswer generalbox"><em>' . get_string("youranswer", "lesson") . '</em> : ' . $result->studentanswer;
// already in clean html
$result->feedback .= $OUTPUT->box($result->response, $class);
// already conerted to HTML
$result->feedback .= '</div>';
}
}
}
return $result;
}
