function calculate_course_progress($course_id)
{
$user_id = get_current_user_id();
$progress = 'progress' . $course_id;
$curriculum = bp_course_get_curriculum_units($course_id);
$base = count($curriculum);
foreach ($curriculum as $key => $unit) {
$check = get_user_meta($user_id, $unit, true);
if (!isset($check) || !$check) {
break;
}
}
if (!$base) {
$base = 1;
}
$course_progress = round(100 * ($key / $base), 0);
update_user_meta($user_id, $progress, $course_progress);
return $course_progress;
}
function bp_get_course_check_course_complete($args = NULL)
{
// AUTO EVALUATION FOR COURSE
global $post;
$defaults = array('id' => $post->ID, 'user_id' => get_current_user_id());
$r = wp_parse_args($args, $defaults);
extract($r, EXTR_SKIP);
$return = '<div class="course_finish">';
$course_curriculum = bp_course_get_curriculum_units($id);
//vibe_sanitize(get_post_meta($id,'vibe_course_curriculum',false));
if (isset($course_curriculum) && count($course_curriculum)) {
$flag = 0;
foreach ($course_curriculum as $unit_id) {
//if(is_numeric($unit_id)){
$unittaken = get_user_meta($user_id, $unit_id, true);
if (!isset($unittaken) || !$unittaken) {
$flag = $unit_id;
break;
}
//}
}
$flag = apply_filters('wplms_finish_course_check', $flag, $course_curriculum);
if (!$flag) {
$course_id = $id;
$auto_eval = get_post_meta($id, 'vibe_course_auto_eval', true);
if (vibe_validate($auto_eval)) {
// AUTO EVALUATION
$curriculum = bp_course_get_curriculum_units($id);
//vibe_sanitize(get_post_meta($id,'vibe_course_curriculum',false));
$total_marks = $student_marks = 0;
foreach ($curriculum as $c) {
if (is_numeric($c)) {
if (get_post_type($c) == 'quiz') {
$k = get_post_meta($c, $user_id, true);
$student_marks += $k;
//Current user is the Student here
$questions = vibe_sanitize(get_post_meta($c, 'quiz_questions' . $user_id, false));
if (!isset($questions) || !is_array($questions)) {
$questions = vibe_sanitize(get_post_meta($c, 'vibe_quiz_questions', false));
}
$total_marks += array_sum($questions['marks']);
}
}
}
do_action('wplms_submit_course', $post->ID, $user_id);
// Apply Filters on Auto Evaluation
$student_marks = apply_filters('wplms_course_student_marks', $student_marks, $id, $user_id);
$total_marks = apply_filters('wplms_course_maximum_marks', $total_marks, $id, $user_id);
if (!$total_marks) {
$total_marks = $student_marks = 1;
}
// Avoid the Division by Zero Error
$marks = round($student_marks * 100 / $total_marks);
$return .= '<div class="message" class="updated"><p>' . __('COURSE EVALUATED ', 'vibe') . '</p></div>';
$badge_per = get_post_meta($id, 'vibe_course_badge_percentage', true);
$passing_cert = get_post_meta($id, 'vibe_course_certificate', true);
// Certificate Enable
$passing_per = get_post_meta($id, 'vibe_course_passing_percentage', true);
// Certificate Passing Percentage
//finish bit for student 1.8.4
update_user_meta($user_id, 'course_status' . $id, 3);
//end finish bit
do_action('wplms_evaluate_course', $id, $marks, $user_id, 1);
$badge_filter = 0;
if (isset($badge_per) && $badge_per && $marks >= $badge_per) {
$badge_filter = 1;
}
$badge_filter = apply_filters('wplms_course_student_badge_check', $badge_filter, $course_id, $user_id, $marks, $badge_per);
if ($badge_filter) {
$badges = array();
$badges = vibe_sanitize(get_user_meta($user_id, 'badges', false));
if (isset($badges) && is_array($badges)) {
$badges[] = $id;
} else {
$badges = array($id);
}
update_user_meta($user_id, 'badges', $badges);
$b = bp_get_course_badge($id);
$badge = wp_get_attachment_info($b);
$badge_url = wp_get_attachment_image_src($b);
if (isset($badge) && is_numeric($b)) {
$return .= '<div class="congrats_badge">' . __('Congratulations ! You\'ve earned the ', 'vibe') . ' <strong>' . get_post_meta($id, 'vibe_course_badge_title', true) . '</strong> ' . __('Badge', 'vibe') . '<a class="tip ajax-badge" data-course="' . get_the_title($id) . '" title="' . get_post_meta($id, 'vibe_course_badge_title', true) . '"><img src="' . $badge_url[0] . '" title="' . $badge['title'] . '"/></a></div>';
}
do_action('wplms_badge_earned', $id, $badges, $user_id, $badge_filter);
}
$passing_filter = 0;
if (vibe_validate($passing_cert) && isset($passing_per) && $passing_per && $marks >= $passing_per) {
$passing_filter = 1;
}
$passing_filter = apply_filters('wplms_course_student_certificate_check', $passing_filter, $course_id, $user_id, $marks, $passing_per);
if ($passing_filter) {
$pass = array();
$pass = vibe_sanitize(get_user_meta($user_id, 'certificates', false));
if (isset($pass) && is_array($pass)) {
$pass[] = $id;
} else {
$pass = array($id);
}
update_user_meta($user_id, 'certificates', $pass);
$return .= '<div class="congrats_certificate">' . __('Congratulations ! You\'ve successfully passed the course and earned the Course Completion Certificate !', 'vibe') . '<a href="' . bp_get_course_certificate('user_id=' . $user_id . '&course_id=' . $id) . '" class="ajax-certificate right"><span>' . __('View Certificate', 'vibe') . '</span></a></div>';
do_action('wplms_certificate_earned', $id, $pass, $user_id, $passing_filter);
}
update_post_meta($id, $user_id, $marks);
$course_end_status = apply_filters('wplms_course_status', 4);
update_user_meta($user_id, 'course_status' . $id, $course_end_status);
//EXCEPTION
$message = sprintf(__('You\'ve obtained %s in course %s ', 'vibe'), apply_filters('wplms_course_marks', $marks . '/100'), ' <a href="' . get_permalink($id) . '">' . get_the_title($id) . '</a>');
$return .= '<div class="congrats_message">' . $message . '</div>';
} else {
$return .= '<div class="message" class="updated"><p>' . __('COURSE SUBMITTED FOR EVALUATION', 'vibe') . '</p></div>';
bp_course_update_user_course_status($user_id, $id, 2);
// 2 determines Course is Complete
do_action('wplms_submit_course', $post->ID, $user_id);
}
// Show the Generic Course Submission
$content = get_post_meta($id, 'vibe_course_message', true);
$return .= apply_filters('the_content', $content);
$return = apply_filters('wplms_course_finished', $return);
} else {
$type = get_post_type($flag);
switch ($type) {
case 'unit':
$type = __('UNIT', 'vibe');
break;
case 'assignment':
$type = __('ASSIGNMENT', 'vibe');
break;
case 'quiz':
$type = __('QUIZ', 'vibe');
break;
}
//Default for other customized options
$message = __('PLEASE COMPLETE THE ', 'vibe') . $type . ' : ' . get_the_title($flag);
$return .= '<div class="message"><p>' . apply_filters('wplms_unfinished_unit_quiz_message', $message, $flag) . '</p></div>';
}
} else {
$retun .= __('COURSE CURRICULUM NOT SET', 'vibe');
}
$return .= '</div>';
return $return;
}
$user_id = get_current_user_id();
$user_courses = get_posts('post_type=course&numberposts=999&meta_key=' . $user_id);
echo '<ul id="userstats">';
foreach ($user_courses as $course) {
$course_complete_status = get_user_meta($user_id, 'course_status' . $course->ID, true);
$user_course_status = get_user_meta($user_id, $course->ID, true);
$cavg = get_post_meta($course->ID, 'average', true);
if (!$cavg) {
$cavg = __('N/A', 'vibe');
}
echo '<li>
<div class="course_avatar">' . bp_course_get_avatar("id={$course->ID}&size=thumbnail") . '</div>
<h4>' . bp_course_get_course_title("id={$course->ID}") . '</a><span><br />' . __('AVERAGE PERCENTAGE : ', 'vibe') . '<span>' . $cavg . '</span></span></h4>';
if ($course_complete_status > 3) {
//$curriculum=vibe_sanitize(get_post_meta($course->ID,'vibe_course_curriculum',false));
$curriculum = bp_course_get_curriculum_units($course->ID);
$average = array();
echo '<a class="showhide_indetails"><i class="icon-plus-1"></i></a>';
$retakes = apply_filters('wplms_course_retake_count', get_post_meta($course->ID, 'vibe_course_retakes', true), $course->ID, $user_id);
if (isset($retakes) && $retakes) {
global $bp;
$table_name = $bp->activity->table_name;
$course_retakes = $wpdb->get_results($wpdb->prepare("\n\t\t\t\t\t\tSELECT activity.content FROM {$table_name} AS activity\n\t\t\t\t\t\tWHERE \tactivity.component \t= 'course'\n\t\t\t\t\t\tAND \tactivity.type \t= 'retake_course'\n\t\t\t\t\t\tAND \tuser_id = %d\n\t\t\t\t\t\tAND \titem_id = %d\n\t\t\t\t\t\tORDER BY date_recorded DESC\n\t\t\t\t\t", $user_id, $course->ID));
if ($retakes - count($course_retakes) > 0) {
echo '<form method="post" action="' . get_permalink($course->ID) . '">';
echo '<a class="retake_submit tip" title="' . __('Number of retakes remaining', 'vibe') . ' : ' . ($retakes - count($course_retakes)) . __(' out of ', 'vibe') . $retakes . '"><i class="icon-reload"></i></a>';
wp_nonce_field('retake' . $user_id, 'security');
echo '</form>';
}
}
// END Retakes
function wplms_course_progressbar($course_id, $unit_id)
{
$user_id = get_current_user_id();
$course_progressbar = vibe_get_option('course_progressbar');
if (!isset($course_progressbar) || !$course_progressbar) {
return;
}
$units = bp_course_get_curriculum_units($course_id);
$total_units = count($units);
$key = array_search($unit_id, $units);
$meta = get_user_meta($user_id, $unit_id, true);
if (isset($meta) && $meta) {
$key++;
}
if (!$total_units) {
$total_units = 1;
}
$percentage = round($key / $total_units * 100);
// Indexes are less than the count value
if ($percentage > 100) {
$percentage = 100;
}
$unit_increase = round(1 / $total_units * 100);
echo "<script>\n jQuery(document).ready(function(\$){\n \$('.course_progressbar').each(function(){\n var cookie_id = 'course_progress'+" . $course_id . ";\n if(\$.cookie(cookie_id)!= null){\n \$(this).attr('data-value',\$.cookie(cookie_id));\n \$(this).find('.bar').css('width',\$.cookie(cookie_id)+'%');\n \$(this).find('.bar span').text(\$.cookie(cookie_id)+'%');\n }\n });\n });\n </script>";
echo '<div class="progress course_progressbar" data-increase-unit="' . $unit_increase . '" data-value="' . $percentage . '">
<div class="bar animate cssanim stretchRight load" style="width: ' . $percentage . '%;"><span>' . $percentage . '%</span></div>
</div>';
}
function unit_key($key, $unit_id, $course_id)
{
if ($unit_id == $_POST['load_unit']) {
$units = bp_course_get_curriculum_units($course_id);
$key = array_search($unit_id, $units);
$key++;
}
return $key;
}
function get_unit_content()
{
$course_id = $_POST['course_id'];
$unit_id = $_POST['unit_id'];
?>
<div id="unit_load<?php
echo $unit_id;
?>
">
<?php
if (!is_numeric($unit_id) || !is_numeric($course_id)) {
_e('Invalid Course or Unit ID');
echo '</div>';
die;
}
$curriculum = bp_course_get_curriculum_units($course_id);
if (!in_Array($unit_id, $curriculum)) {
_e('Unit not found in Course');
echo '</div>';
die;
}
$course_unit_content = get_post_meta($course_id, 'vibe_course_unit_content', true);
if (vibe_validate($course_unit_content)) {
$post = get_post($unit_id);
if ($post->post_type == 'unit') {
?>
<div class="content">
<h2><?php
echo $post->post_title;
?>
</h2>
<h5><?php
echo get_post_meta($post->ID, 'vibe_subtitle', true);
?>
</h5>
<?php
echo apply_filters('the_content', $post->post_content);
?>
</div>
<?php
}
}
?>
</div>
<?php
die;
}
function student_quiz_retake($args = NULL)
{
$defaults = array('quiz_id' => get_the_ID(), 'user_id' => get_current_user_id());
$params = wp_parse_args($args, $defaults);
extract($params, EXTR_SKIP);
if (!isset($user_id) || !$user_id) {
wp_die(__(' Incorrect User selected.', 'vibe'), __('Security Error', 'vibe'), array('back_link' => true));
}
delete_user_meta($user_id, $quiz_id);
delete_post_meta($quiz_id, $user_id);
// Optional validates that user can retake the quiz
$questions = vibe_sanitize(get_post_meta($quiz_id, 'quiz_questions' . $user_id, false));
if (!isset($questions) || !is_array($questions)) {
// Fallback for Older versions
$questions = vibe_sanitize(get_post_meta($quiz_id, 'vibe_quiz_questions', false));
} else {
delete_post_meta($quiz_id, 'quiz_questions' . $user_id);
}
foreach ($questions['ques'] as $question) {
global $wpdb;
$wpdb->query($wpdb->prepare("UPDATE {$wpdb->comments} SET comment_approved='trash' WHERE comment_post_ID=%d AND user_id=%d", $question, $user_id));
}
$course_id = get_post_meta($quiz_id, 'vibe_quiz_course', true);
if (!empty($course_id)) {
// Course progressbar fix for single quiz
$curriculum = bp_course_get_curriculum_units($course_id);
$per = round(100 / count($curriculum), 2);
$progress = get_user_meta($user_id, 'progress' . $course_id, true);
if (empty($progress)) {
$progress = 0;
}
$new_progress = $progress - $per;
if ($new_progress < 0) {
$new_progress = 0;
}
update_user_meta($user_id, 'progress' . $course_id, $new_progress);
setcookie('course_progress' . $course_id, $new_progress, 3600, '/');
}
do_action('wplms_quiz_retake', $quiz_id, $user_id);
}
function incourse_submit_quiz()
{
$quiz_id = $_POST['quiz_id'];
if (!isset($_POST['security']) || !wp_verify_nonce($_POST['security'], 'security') || !is_numeric($quiz_id)) {
_e('Security check Failed. Contact Administrator.', 'vibe');
die;
}
$user_id = get_current_user_id();
$access = get_user_meta($user_id, $quiz_id, true);
if (!isset($access) || !is_numeric($access)) {
_e('Invalid submission time.', 'vibe');
die;
}
$get_questions = vibe_sanitize(get_post_meta($quiz_id, 'quiz_questions' . $user_id, false));
if (!is_array($get_questions) || !is_array($get_questions['ques']) || !is_array($get_questions['marks'])) {
_e('Questions not set.', 'vibe');
die;
}
$answers = json_decode(stripslashes($_POST['answers']));
foreach ($answers as $answer) {
$data = apply_filters('wplms_add_in_quiz_question_answer', array('comment_post_ID' => $answer->id, 'comment_content' => $answer->value, 'comment_type' => '', 'user_id' => $user_id, 'comment_approved' => 1));
wp_insert_comment($data);
}
update_user_meta($user_id, $quiz_id, time());
update_post_meta($quiz_id, $user_id, 0);
do_action('wplms_submit_quiz', $quiz_id, $user_id);
bp_course_quiz_auto_submit($quiz_id, $user_id);
$get_message = trim(get_post_meta($quiz_id, 'vibe_quiz_message', true));
$course_id = get_post_meta($quiz_id, 'vibe_quiz_course', true);
$nextunit_access = vibe_get_option('nextunit_access');
$flag = apply_filters('wplms_next_unit_access', true, $quiz_id);
if (is_numeric($course_id) && $nextunit_access && $flag) {
$curriculum = bp_course_get_curriculum_units($course_id);
$key = array_search($quiz_id, $curriculum);
if ($key <= count($curriculum) - 1) {
// Check if not the last unit
$key++;
echo $curriculum[$key] . '##';
}
}
echo ' ';
echo apply_filters('the_content', $get_message);
die;
}
function wplms_course_progressbar($course_id, $unit_id)
{
$user_id = get_current_user_id();
$course_progressbar = vibe_get_option('course_progressbar');
if (!isset($course_progressbar) || !$course_progressbar) {
return;
}
$key = 'course_progressbar' . $course_id;
$percentage = get_user_meta($user_id, $key, true);
if (empty($percentage)) {
$units = bp_course_get_curriculum_units($course_id);
$total_units = count($units);
$key = array_search($unit_id, $units);
$meta = get_user_meta($user_id, $unit_id, true);
if (isset($meta) && $meta) {
$key++;
}
if (!$total_units) {
$total_units = 1;
}
$percentage = round($key / $total_units * 100, 2);
// Indexes are less than the count value
}
if ($percentage > 100) {
$percentage = 100;
}
$unit_increase = round(1 / $total_units * 100, 2);
echo '<div class="progress course_progressbar" data-increase-unit="' . $unit_increase . '" data-value="' . $percentage . '">
<div class="bar animate cssanim stretchRight load" style="width: ' . $percentage . '%;"><span>' . $percentage . '%</span></div>
</div>';
}
function submit_quiz()
{
$quiz_id = $_POST['quiz_id'];
$user_id = get_current_user_id();
$access = get_user_meta($user_id, $quiz_id, true);
if (!isset($access) || !is_numeric($access)) {
_e('Invalid submission time.', 'vibe');
die;
}
$get_questions = vibe_sanitize(get_post_meta($quiz_id, 'quiz_questions' . $user_id, false));
if (!is_array($get_questions) || !is_array($get_questions['ques']) || !is_array($get_questions['marks'])) {
_e('Questions not set.', 'vibe');
die;
}
$answers = json_decode(stripslashes($_POST['answers']));
$flag = apply_filters('bp_course_quiz_insert_query', 1, $quiz_id, $answers);
if ($flag && !empty($answers)) {
$values = '';
foreach ($answers as $answer) {
$values .= "(" . $answer->id . ",'" . $answer->value . "'," . $user_id . ",1),";
}
$finalvalues = rtrim($values, ',');
global $wpdb;
$wpdb->query("INSERT INTO {$wpdb->comments}(comment_post_ID,comment_content,user_id,comment_approved) VALUES {$finalvalues}");
}
update_user_meta($user_id, $quiz_id, time());
update_post_meta($quiz_id, $user_id, 0);
do_action('wplms_submit_quiz', $quiz_id, $user_id);
$course_id = get_post_meta($quiz_id, 'vibe_quiz_course', true);
if (!empty($course_id)) {
// Course progressbar fix for single quiz
$curriculum = bp_course_get_curriculum_units($course_id);
$per = round(100 / count($curriculum), 2);
$progress = get_user_meta($user_id, 'progress' . $course_id, true);
if (empty($progress)) {
$progress = 0;
}
$new_progress = $progress + $per;
if ($new_progress > 100) {
$new_progress = 100;
}
update_user_meta($user_id, 'progress' . $course_id, $new_progress);
echo '<script>jQuery(document).ready(function(){jQuery.cookie("course_progress' . $course_id . '","' . $new_progress . '", { expires: 1 ,path: "/"});});</script>';
}
bp_course_quiz_auto_submit($quiz_id, $user_id);
die;
}
