/**
* Check to see if user can view a lesson or not
*
* @since 0.9.5
* @param int $lesson_id
* @param int $user_id
* @return boolean
*/
function learn_press_user_can_view_lesson($lesson_id, $user_id = null)
{
$return = false;
if ($user_id = null) {
$user_id = get_current_user_id();
}
$course_id = learn_press_get_course_by_lesson($lesson_id);
$enrolled_require = get_post_meta($course_id, '_lpr_course_enrolled_require', true);
// check enrolled require
if (!$enrolled_require || $enrolled_require == 'no') {
$return = true;
} elseif (learn_press_is_lesson_preview($lesson_id)) {
// lesson can preview
$return = true;
} else {
if (learn_press_is_enrolled_course()) {
// user has enrolled course
$return = true;
}
}
return apply_filters('learn_press_user_can_view_lesson', $return, $lesson_id, $user_id);
}
/**
* Shortcode function to display the link of a lesson in the lesson content
*
* @param $atts
* @param null $content
*
* @return string
*/
function learn_press_quick_lesson_link_shortcode($atts, $content = null)
{
if ('lpr_lesson' == get_post_type()) {
$atts = shortcode_atts(array('id' => 0, 'text' => null, 'target' => ''), $atts);
if ('lpr_lesson' == get_post_type($atts['id']) && ($course_id = learn_press_get_course_by_lesson($atts['id']))) {
$link = learn_press_get_course_lesson_permalink($atts['id'], $course_id);
$text = $atts['text'] ? $atts['text'] : get_the_title($atts['id']);
$target = $atts['target'];
return sprintf('<a href="%s" target="%s">%s</a>', $link, $target, $text);
}
return '';
}
return '';
}
/**
* Complete lesson
*/
public static function complete_lesson()
{
global $post;
$user_id = get_current_user_id();
$lesson_id = !empty($_POST['lesson']) ? $_POST['lesson'] : 0;
if (!$user_id || !$lesson_id) {
wp_die(__('Access denied!', 'learn_press'));
}
$response = array();
if (learn_press_mark_lesson_complete($lesson_id, $user_id)) {
$course_id = learn_press_get_course_by_lesson($lesson_id);
$lessons = learn_press_get_lessons_in_course($course_id);
$lesson_completed = get_user_meta($user_id, '_lpr_lesson_completed', true);
$lesson_completed = !empty($lesson_completed[$course_id]) ? $lesson_completed[$course_id] : array();
if ($lessons) {
if (false !== ($pos = array_search($lesson_id, $lessons))) {
$loop = $pos == count($lessons) - 1 ? 0 : $pos + 1;
$infinite = 0;
$max = count($lessons);
while (in_array($lessons[$loop], $lesson_completed) && $lessons[$loop] != $lesson_id) {
$loop++;
if ($loop == $max) {
$loop = 0;
}
if ($infinite > $max) {
break;
}
}
if ($lessons[$loop] != $lesson_id) {
$response['url'] = learn_press_get_course_lesson_permalink($lessons[$loop], $course_id);
} else {
$response['url'] = learn_press_get_course_lesson_permalink($lesson_id, $course_id);
}
}
}
}
learn_press_send_json($response);
die;
}
/**
* Complete lesson
*/
public static function complete_lesson()
{
$nonce = learn_press_get_request('nonce');
$item_id = learn_press_get_request('id');
$post = get_post($item_id);
if (!$post || $post && !wp_verify_nonce($nonce, sprintf('learn-press-complete-%s-%d', $post->post_type, $post->ID))) {
throw new Exception(__('Error ', 'learn_press'));
}
$user = learn_press_get_current_user();
$response = array('result' => 'error');
if ($user->complete_lesson($item_id)) {
ob_start();
learn_press_display_message(__('Congratulations! You have completed this lesson.', 'learn_press'));
$response['message'] = ob_get_clean();
$response['result'] = 'success';
}
learn_press_send_json($response);
die;
global $post;
$user_id = get_current_user_id();
$lesson_id = !empty($_POST['lesson']) ? $_POST['lesson'] : 0;
if (!$user_id || !$lesson_id) {
wp_die(__('Access denied!', 'learn_press'));
}
$response = array();
if (learn_press_mark_lesson_complete($lesson_id, $user_id)) {
$course_id = learn_press_get_course_by_lesson($lesson_id);
$lessons = learn_press_get_lessons_in_course($course_id);
$lesson_completed = get_user_meta($user_id, '_lpr_lesson_completed', true);
$lesson_completed = !empty($lesson_completed[$course_id]) ? $lesson_completed[$course_id] : array();
if ($lessons) {
if (false !== ($pos = array_search($lesson_id, $lessons))) {
$loop = $pos == count($lessons) - 1 ? 0 : $pos + 1;
$infinite = 0;
$max = count($lessons);
while (in_array($lessons[$loop], $lesson_completed) && $lessons[$loop] != $lesson_id) {
$loop++;
if ($loop == $max) {
$loop = 0;
}
if ($infinite > $max) {
break;
}
}
if ($lessons[$loop] != $lesson_id) {
$response['url'] = learn_press_get_course_lesson_permalink($lessons[$loop], $course_id);
} else {
$response['url'] = learn_press_get_course_lesson_permalink($lesson_id, $course_id);
}
}
}
}
learn_press_send_json($response);
die;
}
