/**
* Clean all items from cart
*
* @return $this
*/
function empty_cart()
{
do_action('learn_press_before_empty_cart');
LP_Session::set('cart', $this->get_default_cart_content());
$this->get_cart_from_session();
do_action('learn_press_emptied_cart');
return $this;
}
/**
* Display a message immediately with out push into queue
*
* @param $message
* @param string $type
*/
function learn_press_display_message($message, $type = 'success')
{
// get all notices added into queue
$notices = LP_Session::get('notices');
LP_Session::set('notices', null);
// add new notice and display
learn_press_add_notice($message, $type);
echo learn_press_get_notices(true);
// store back notices
LP_Session::set('notices', $notices);
}
function get_session()
{
if (!$this->session) {
$this->session = LP_Session::instance();
}
return $this->session;
}
/**
* Get unique instance object of the class
*
* @return LP_Session|object
*/
static function instance()
{
if (!self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Display all notices from queue and clear queue if required
*
* @param bool|true $clear
*/
function learn_press_print_notices($clear = true)
{
if ($notices = LP_Session::get('notices')) {
// Allow to reorder the position of notices
$notice_types = apply_filters('learn_press_notice_types', array('error', 'success', 'notice'));
foreach ($notice_types as $notice_type) {
if (!empty($notices[$notice_type])) {
learn_press_get_template("notices/{$notice_type}.php", array('messages' => $notices[$notice_type]));
}
}
// clear queue if required
if ($clear) {
learn_press_clear_notices();
}
}
}
/**
* Quiz for anonymous users
*
* @param boolean
* @param int
* @param int
* @return boolean
*/
function do_quiz_for_anonymous_user($continue, $quiz_id, $user_id)
{
$course_id = learn_press_get_course_by_quiz($quiz_id);
if ($this->is_public_quiz($course_id)) {
$session = LP_Session::instance();
$session->set('anonymous_quiz', array('questions' => array_values(learn_press_get_quiz_questions($quiz_id)), 'finished' => 0, 'answers' => array(), 'start' => time(), 'end' => null));
$continue = false;
do_action('learn_press_user_start_quiz', $quiz_id, $user_id);
}
return $continue;
}
