/**
* Remove user from lesson, deleting all data from the corresponding quiz
*
* @param int $lesson_id
* @param int $user_id
* @return boolean
*/
public static function sensei_remove_user_from_lesson($lesson_id = 0, $user_id = 0, $from_course = false)
{
if (!$lesson_id) {
return false;
}
if (intval($user_id) == 0) {
$user_id = get_current_user_id();
}
// Process quiz
$lesson_quiz_id = Sensei()->lesson->lesson_quizzes($lesson_id);
// Delete quiz answers, this auto deletes the corresponding meta data, such as the question/answer grade
Sensei_Utils::sensei_delete_quiz_answers($lesson_quiz_id, $user_id);
// Delete lesson status
$args = array('post_id' => $lesson_id, 'type' => 'sensei_lesson_status', 'user_id' => $user_id);
// This auto deletes the corresponding meta data, such as the quiz grade, and questions asked
Sensei_Utils::sensei_delete_activities($args);
if (!$from_course) {
do_action('sensei_user_lesson_reset', $user_id, $lesson_id);
}
return true;
}
/**
* Reset user submitted questions
*
* This function resets the quiz data for a user that has been submitted fro grading already. It is different to
* the save_user_answers as currently the saved and submitted answers are stored differently.
*
* @since 1.7.4
* @access public
*
* @return bool $reset_success
* @param int $user_id
* @param int $lesson_id
*/
public function reset_user_lesson_data($lesson_id, $user_id = 0)
{
//make sure the parameters are valid
if (empty($lesson_id) || empty($user_id) || 'lesson' != get_post_type($lesson_id) || !get_userdata($user_id)) {
return false;
}
//get the users lesson status to make
$user_lesson_status = Sensei_Utils::user_lesson_status($lesson_id, $user_id);
if (!isset($user_lesson_status->comment_ID)) {
// this user is not taking this lesson so this process is not needed
return false;
}
//get the lesson quiz and course
$quiz_id = Sensei()->lesson->lesson_quizzes($lesson_id);
$course_id = Sensei()->lesson->get_course_id($lesson_id);
// reset the transients
$answers_transient_key = 'sensei_answers_' . $user_id . '_' . $lesson_id;
$grades_transient_key = 'quiz_grades_' . $user_id . '_' . $lesson_id;
$answers_feedback_transient_key = 'sensei_answers_feedback_' . $user_id . '_' . $lesson_id;
delete_transient($answers_transient_key);
delete_transient($grades_transient_key);
delete_transient($answers_feedback_transient_key);
// reset the quiz answers and feedback notes
$deleted_answers = Sensei_Utils::delete_user_data('quiz_answers', $lesson_id, $user_id);
$deleted_grades = Sensei_Utils::delete_user_data('quiz_grades', $lesson_id, $user_id);
$deleted_user_feedback = Sensei_Utils::delete_user_data('quiz_answers_feedback', $lesson_id, $user_id);
// Delete quiz answers, this auto deletes the corresponding meta data, such as the question/answer grade
Sensei_Utils::sensei_delete_quiz_answers($quiz_id, $user_id);
Sensei_Utils::update_lesson_status($user_id, $lesson_id, 'in-progress', array('questions_asked' => '', 'grade' => ''));
// Update course completion
Sensei_Utils::update_course_status($user_id, $course_id);
// Run any action on quiz/lesson reset (previously this didn't occur on resetting a quiz, see resetting a lesson in sensei_complete_lesson()
do_action('sensei_user_lesson_reset', $user_id, $lesson_id);
Sensei()->frontend->messages = '<div class="sensei-message note">' . __('Quiz Reset Successfully.', 'woothemes-sensei') . '</div>';
return $deleted_answers && $deleted_grades;
}
