static function hide_upgrade_notice()
{
$ask_again = learn_press_get_request('ask_again');
$expiration = DAY_IN_SECONDS;
if ($ask_again == 'no') {
$expiration = 0;
}
set_transient('learn_press_upgrade_courses_ask_again', $ask_again, $expiration);
learn_press_send_json(array('result' => 'success', 'message' => sprintf('<p>%s</p>', __('Thank for using LearnPress', 'learn_press'))));
}
/**
* Print plugin information after WP installed a plugin
*
* @param $a
* @param $b
* @param $result
*/
function learn_press_upgrader_post_install($a, $b, $result)
{
if (!empty($_REQUEST['learnpress']) && $_REQUEST['learnpress'] == 'active') {
if (is_wp_error($result)) {
} else {
$slug = $_REQUEST['plugin'];
$plugin = learn_press_plugin_basename_from_slug($slug);
activate_plugin($plugin, false, is_network_admin());
// ensure that plugin is enabled
$is_activate = is_plugin_active($plugin);
$result['status'] = $is_activate ? 'activate' : 'deactivate';
$result['status_text'] = $is_activate ? __('Enabled', 'learn_press') : __('Disabled', 'learn_press');
}
learn_press_send_json($result);
}
}
function learn_press_submit_answer()
{
_deprecated_function('learn_press_submit_answer', '0.9.15', false);
$quiz_id = !empty($_REQUEST['quiz_id']) ? intval($_REQUEST['quiz_id']) : 0;
$question_id = !empty($_REQUEST['question_id']) ? intval($_REQUEST['question_id']) : 0;
$next_id = !empty($_REQUEST['next_id']) ? intval($_REQUEST['next_id']) : learn_press_get_next_question($quiz_id, $question_id);
$question_answer = isset($_REQUEST['question_answer']) ? $_REQUEST['question_answer'] : null;
$finish = isset($_REQUEST['finish']) ? $_REQUEST['finish'] : null;
$user_id = get_current_user_id();
$json = array();
$ques = lpr_get_question($question_id);
if ($ques) {
$ques->submit_answer($quiz_id, $question_answer);
}
ob_start();
if ($next_id) {
do_action('learn_press_submit_answer', $question_answer, $question_id, $quiz_id, $user_id, false);
learn_press_get_template('quiz/form-question.php', array('question_id' => $next_id, 'course_id' => learn_press_get_course_by_quiz($quiz_id)));
} else {
$question_ids = learn_press_get_user_quiz_questions($quiz_id, $user_id);
$quiz_completed = get_user_meta($user_id, '_lpr_quiz_completed', true);
$quiz_completed[$quiz_id] = current_time('timestamp');
update_user_meta($user_id, '_lpr_quiz_completed', $quiz_completed);
$course_id = learn_press_get_course_by_quiz($quiz_id);
if (!learn_press_user_has_finished_course($course_id)) {
if (learn_press_user_has_completed_all_parts($course_id, $user_id)) {
learn_press_finish_course($course_id, $user_id);
}
}
learn_press_get_template('quiz/result.php');
$json['quiz_completed'] = true;
do_action('learn_press_submit_answer', $question_answer, $question_id, $quiz_id, $user_id, true);
}
$output = ob_get_clean();
if (defined('DOING_AJAX') && DOING_AJAX) {
$json['html'] = $output;
$json['redirect'] = apply_filters('learn_press_submit_answer_redirect_url', get_the_permalink($quiz_id), $question_answer, $question_id, $quiz_id, $user_id);
learn_press_send_json($json);
}
}
static function plugin_install()
{
$plugin_name = !empty($_REQUEST['plugin']) ? $_REQUEST['plugin'] : '';
$response = learn_press_install_add_on($plugin_name);
learn_press_send_json($response);
die;
}
/**
* Check before user take course and if they are not logged in then redirect to login page
*
* @param $can_take
* @param $user_id
* @param $course_id
* @param $payment_method
*/
function learn_press_require_login_to_take_course($can_take, $user_id, $course_id, $payment_method)
{
if (!is_user_logged_in()) {
$login_url = learn_press_get_login_url(get_permalink($course_id));
learn_press_send_json(array('result' => 'success', 'redirect' => $login_url));
}
}
/**
* Add course to cart
*
* @param int $course_id
* @param int $quantity
* @param array
*/
function add_to_cart($course_id, $quantity = 1, $item_data = array())
{
if (!learn_press_is_enable_cart()) {
$this->empty_cart();
}
$course = learn_press_get_course($course_id);
/*
if ( !empty( $this->_cart_content['items'][$course_id] ) ) {
$quantity += $this->_cart_content['items'][$course_id]['quantity'];
}*/
$quantity = 1;
$this->_cart_content['items'][$course_id] = apply_filters('learn_press_add_cart_item', array('item_id' => $course_id, 'quantity' => $quantity, 'subtotal' => $course->get_price() * $quantity, 'total' => $course->get_price() * $quantity, 'data' => $item_data));
do_action('learn_press_add_to_cart', $course_id, $quantity, $item_data, $this);
$button = '';
if (learn_press_is_enable_cart()) {
if (LP()->settings->get('redirect_after_add') == 'yes') {
$redirect = learn_press_get_page_link('cart');
$button = sprintf('<a href="%s">%s</a>', get_the_permalink($course_id), __('Back to class', 'learn_press'));
} else {
$redirect = get_the_permalink($course_id);
$button = sprintf('<a href="%s">%s</a>', learn_press_get_page_link('cart'), __('View cart', 'learn_press'));
}
} else {
$redirect = learn_press_get_page_link('checkout');
}
$redirect = apply_filters('learn_press_add_to_cart_redirect', $redirect, $course_id);
learn_press_add_notice(sprintf(__('<strong>%s</strong> has been added to your cart. %s', 'learn_press'), get_the_title($course_id), $button));
if (is_ajax()) {
learn_press_send_json(array('redirect' => $redirect, 'result' => 'success', 'messages' => learn_press_get_notices(true)));
} else {
wp_redirect($redirect);
die;
}
}
/**
* Process checkout
*
* @throws Exception
*/
function process_checkout()
{
try {
if (strtolower($_SERVER['REQUEST_METHOD']) != 'post') {
return;
}
// Prevent timeout
@set_time_limit(0);
do_action('learn_press_before_checkout_process');
$success = true;
if (LP()->cart->is_empty()) {
learn_press_send_json(array('result' => 'success', 'redirect' => learn_press_get_page_link('checkout')));
}
if (empty($_REQUEST['payment_method'])) {
$success = false;
learn_press_add_notice(__('Please select a payment method', 'learn_press'), 'error');
} else {
$this->payment_method = $_REQUEST['payment_method'];
if ($this->checkout_fields) {
foreach ($this->checkout_fields as $name => $field) {
if (!apply_filters('learn_press_checkout_validate_field', true, array('name' => $name, 'text' => $field), $this)) {
$success = false;
}
}
}
if (isset($this->checkout_fields['user_login']) && isset($this->checkout_fields['user_password'])) {
$creds = array();
$creds['user_login'] = $_POST['user_login'];
$creds['user_password'] = $_POST['user_password'];
$creds['remember'] = true;
$user = wp_signon($creds, false);
if (is_wp_error($user)) {
learn_press_add_notice($user->get_error_message(), 'error');
$success = false;
}
}
LP()->session->set('chosen_payment_method', $this->payment_method);
}
if ($success && LP()->cart->needs_payment()) {
// Payment Method
$available_gateways = LP_Gateways::instance()->get_available_payment_gateways();
if (!isset($available_gateways[$this->payment_method])) {
$this->payment_method = '';
learn_press_add_notice(__('Invalid payment method.', 'learn_press'), 'error');
} else {
$this->payment_method = $available_gateways[$this->payment_method];
$success = $this->payment_method->validate_fields();
}
} else {
$available_gateways = array();
}
$order_id = $this->create_order();
if ($success && $this->payment_method && $order_id) {
LP()->session->order_awaiting_payment = $order_id;
// Process Payment
$result = $this->payment_method->process_payment($order_id);
$success = !empty($result['result']) ? $result['result'] == 'success' : false;
// Redirect to success/confirmation/payment page
if ($success) {
$result = apply_filters('learn_press_payment_successful_result', $result, $order_id);
//LP()->cart->empty_cart();
if (is_ajax()) {
learn_press_send_json($result);
} else {
wp_redirect($result['redirect']);
exit;
}
}
}
} catch (Exception $e) {
if (!empty($e)) {
learn_press_add_notice($e->getMessage(), 'error');
}
$success = false;
}
$error_messages = '';
if (!$success) {
ob_start();
learn_press_print_notices();
$error_messages = ob_get_clean();
}
$result = array('result' => $success ? 'success' : 'fail', 'messages' => $error_messages, 'redirect' => '');
return $result;
}
/**
* 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;
}
function start_quiz()
{
$quiz_id = !empty($_REQUEST['quiz_id']) ? absint($_REQUEST['quiz_id']) : 0;
if (!$quiz_id) {
learn_press_send_json(array('result' => 'error', 'message' => __('The quiz ID is empty', 'learn_press')));
}
$quiz = LP_Quiz::get_quiz($quiz_id);
if (!$quiz->id || $quiz->id != $quiz_id) {
learn_press_send_json(array('result' => 'error', 'message' => __('Something is wrong! Please try again', 'learn_press')));
}
$user = learn_press_get_current_user();
if ($quiz->is_require_enrollment() && $user->is('guest')) {
learn_press_send_json(array('result' => 'error', 'message' => __('Please login to do this quiz', 'learn_press')));
}
$user->set_quiz($quiz);
switch (strtolower($user->get_quiz_status())) {
case 'completed':
learn_press_send_json(array('result' => 'error', 'message' => __('You have completed this quiz', 'learn_press'), 'data' => $user->get_quiz_result()));
break;
case 'started':
learn_press_send_json(array('result' => 'error', 'message' => __('You have started this quiz', 'learn_press'), 'data' => array('status' => $user->get_quiz_status())));
break;
default:
$result = $user->start_quiz();
learn_press_send_json(array('result' => 'success', 'data' => $result, 'question_url' => learn_press_get_user_question_url($quiz_id), 'question_content' => $user->get_current_question($quiz_id, 'html')));
}
die;
}
function become_a_teacher_handler()
{
$name = !empty($_POST['bat_name']) ? $_POST['bat_name'] : null;
$email = !empty($_POST['bat_email']) ? $_POST['bat_email'] : null;
$phone = !empty($_POST['bat_phone']) ? $_POST['bat_phone'] : null;
$response = array('error' => array());
if (!$name) {
$response['error'][] = __('Please enter your name', 'learn_press');
}
if (!$email) {
$response['error'][] = __('Please enter your email address', 'learn_press');
}
if (!$phone) {
//$response['error'][] = __( 'Please enter your phone number', 'learn_press' );
}
global $current_user;
get_currentuserinfo();
$to_email = array(get_option('admin_email'));
$message_headers = '';
$subject = 'Please moderate';
$notify_message = sprintf(__('The user <a href="%s">%s</a> want to be a teacher.', 'learn_press'), admin_url('user-edit.php?user_id=' . $current_user->ID), $current_user->data->user_login) . "\r\n";
$notify_message .= sprintf(__('Name: %s', 'learn_press'), $name) . "\r\n";
$notify_message .= sprintf(__('Email: %s', 'learn_press'), $email) . "\r\n";
$notify_message .= sprintf(__('Phone: %s', 'learn_press'), $phone) . "\r\n";
$notify_message .= wp_specialchars_decode(sprintf(__('Accept: %s', 'learn_press'), admin_url('user-edit.php?user_id=' . $current_user->ID) . '&action=accept-to-be-teacher')) . "\r\n";
$args = array($to_email, $subject, $notify_message, $message_headers);
$return = @call_user_func_array('wp_mail', $args);
// $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );
$response['return'] = $return;
//$response['args'] = $args;
// $response['user'] = $current_user;
learn_press_send_json($response);
die;
}
