public function getLessonsOfCourse($courseId) { $result = parent::getActivityOfCourse($courseId); $lessons = array(); foreach ($result as $row) { $lesson = self::returnedLesson($row); if ($lesson) { array_push($lessons, $lesson); } } return $lessons; }
public function getQuizsOfCourse($courseId) { $result = parent::getActivityOfCourse($courseId); $quizs = array(); foreach ($result as $row) { $quiz = self::returnedQuiz($row); if ($quiz) { array_push($quizs, $quiz); } } return $quizs; }