function submit_answer($quiz_id, $answer)
{
$questions = learn_press_get_question_answers(null, $quiz_id);
if (!is_array($questions)) {
$questions = array();
}
$questions[$quiz_id][$this->get('ID')] = is_array($answer) ? reset($answer) : $answer;
learn_press_save_question_answer(null, $quiz_id, $this->get('ID'), is_array($answer) ? reset($answer) : $answer);
}
/**
* Get the information result of a quiz
*
* @param int $user_id
* @param int $quiz_id
* @return array
*/
function learn_press_get_quiz_result($user_id = null, $quiz_id = null)
{
global $quiz;
if (!$user_id) {
$user_id = get_current_user_id();
}
$quiz_id = $quiz_id ? $quiz_id : ($quiz ? $quiz->ID : 0);
$questions = learn_press_get_quiz_questions($quiz_id);
$answers = learn_press_get_question_answers($user_id, $quiz_id);
$mark = 0;
$correct_questions = 0;
$wrong_questions = 0;
$empty_questions = 0;
$quiz_start = learn_press_get_user_quiz_data('_lpr_quiz_start_time', $user_id, $quiz_id);
$quiz_end = learn_press_get_user_quiz_data('_lpr_quiz_completed', $user_id, $quiz_id);
$mark_total = learn_press_get_quiz_mark($quiz_id);
$quiz_time = $quiz_end ? $quiz_end - $quiz_start : 0;
$info = false;
if ($questions) {
foreach ($questions as $question_id => $options) {
$ques_object = LPR_Question_Type::instance($question_id);
if ($ques_object && isset($answers[$question_id])) {
$check = $ques_object->check(array('answer' => $answers[$question_id]));
if ($check['correct']) {
//$mark += $check['mark'];
$correct_questions++;
} else {
$wrong_questions++;
}
$mark += isset($check['mark']) ? $check['mark'] : 0;
} else {
$empty_questions++;
}
}
$question_count = count($questions);
if (is_float($mark)) {
$mark = round($mark, 1);
}
$info = array('mark' => $mark, 'correct' => $correct_questions, 'wrong' => $wrong_questions, 'empty' => $empty_questions, 'questions_count' => $question_count, 'mark_total' => round($mark_total, 2), 'mark_percent' => round($mark / $mark_total, 2), 'correct_percent' => round($correct_questions / $question_count * 100, 2), 'wrong_percent' => round($wrong_questions / $question_count * 100, 2), 'empty_percent' => round($empty_questions / $question_count * 100, 2), 'quiz_time' => $quiz_time);
}
return apply_filters('learn_press_get_quiz_result', $info, $user_id, $quiz_id);
}
function learn_press_show_answer()
{
$quiz_id = !empty($_REQUEST['quiz_id']) ? intval($_REQUEST['quiz_id']) : 0;
$question_id = !empty($_REQUEST['question_id']) ? intval($_REQUEST['question_id']) : 0;
$question_answer = isset($_REQUEST['question_answer']) ? $_REQUEST['question_answer'] : null;
$user_id = get_current_user_id();
$json = array();
ob_start();
$ques = lpr_get_question($question_id);
if ($ques) {
$ques->submit_answer($quiz_id, $question_answer);
}
global $quiz;
$user_id = get_current_user_id();
$quiz_answers = learn_press_get_question_answers(null, $quiz_id);
$answer = isset($quiz_answers[$question_id]) ? $quiz_answers[$question_id] : array();
switch ($ques->get_type()) {
case 'multi_choice':
?>
<ul class="lpr-question-hint">
<?php
if ($answers = $ques->get('options.answer')) {
foreach ($answers as $k => $ans) {
$classes = array();
if (in_array($k, $answer)) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="checkbox"
disabled="disabled" <?php
checked(in_array($k, $answer) ? 1 : 0);
?>
/>
<?php
echo $ques->get("options.answer.{$k}.text");
?>
</label>
</li>
<?php
}
}
?>
</ul>
<?php
break;
case 'single_choice':
?>
<ul class="lpr-question-hint">
<?php
if ($answers = $ques->get('options.answer')) {
foreach ($answers as $k => $ans) {
$classes = array();
if ($k == $answer) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="radio" disabled="disabled" <?php
checked($k == $answer ? 1 : 0);
?>
/>
<?php
echo $ques->get("options.answer.{$k}.text");
?>
</label>
</li>
<?php
}
}
?>
</ul>
<?php
break;
case 'true_or_false':
?>
<ul class="lpr-question-hint">
<?php
for ($k = 0; $k < 2; $k++) {
$classes = array();
if ($k == $answer) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="radio" disabled="disabled" <?php
checked($answer == $k ? 1 : 0);
?>
/>
<?php
echo $ques->get('options.answer.' . $k . '.text');
?>
</label>
</li>
<?php
}
?>
</ul>
<?php
break;
default:
do_action('learn_press_question_suggestion_' . $ques->get_type(), $ques, $answer);
}
?>
<h4><?php
_e("Answer explanation", 'learn_press');
?>
</h4>
<p><?php
echo $ques->get('options.explaination');
?>
</p>
<?php
$json['html'] = ob_get_clean();
wp_send_json($json);
die;
}
/**
* Display the correct/wrong answers of a quiz in result page
*
* @param $question_id
*/
function learn_press_quiz_hint($question_id)
{
global $quiz;
$user_id = get_current_user_id();
if (!learn_press_user_has_completed_quiz($user_id, $quiz->id) || !get_post_meta($quiz->id, '_lpr_show_quiz_result', true)) {
return;
}
if ($ques = lpr_get_question($question_id)) {
$quiz_answers = learn_press_get_question_answers(null, $quiz->id);
$answer = isset($quiz_answers[$question_id]) ? $quiz_answers[$question_id] : array();
switch ($ques->get_type()) {
case 'multi_choice':
?>
<ul class="lpr-question-hint">
<?php
if ($answers = $ques->get('options.answer')) {
foreach ($answers as $k => $ans) {
$classes = array();
if (in_array($k, $answer)) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="checkbox"
disabled="disabled" <?php
checked(in_array($k, $answer) ? 1 : 0);
?>
/>
<?php
echo $ques->get("options.answer.{$k}.text");
?>
</label>
</li>
<?php
}
}
?>
</ul>
<?php
break;
case 'single_choice':
?>
<ul class="lpr-question-hint">
<?php
if ($answers = $ques->get('options.answer')) {
foreach ($answers as $k => $ans) {
$classes = array();
if ($k == $answer) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="radio" disabled="disabled" <?php
checked($k == $answer ? 1 : 0);
?>
/>
<?php
echo $ques->get("options.answer.{$k}.text");
?>
</label>
</li>
<?php
}
}
?>
</ul>
<?php
break;
case 'true_or_false':
?>
<ul class="lpr-question-hint">
<?php
for ($k = 0; $k < 2; $k++) {
$classes = array();
if ($k == $answer) {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
} else {
$classes[] = "wrong";
}
} else {
if ($ques->get("options.answer.{$k}.is_true")) {
$classes[] = "correct";
}
}
?>
<li <?php
echo $classes ? 'class="' . join(" ", $classes) . '"' : '';
?>
>
<label>
<input type="radio" disabled="disabled" <?php
checked($answer == $k ? 1 : 0);
?>
/>
<?php
echo $ques->get('options.answer.' . $k . '.text');
?>
</label>
</li>
<?php
}
?>
</ul>
<?php
break;
default:
do_action('learn_press_question_suggestion_' . $ques->get_type(), $ques, $answer);
}
}
}