public function save(MovieReview $movieReview) { $movieId = $movieReview->getMovieId(); $author = $movieReview->getAuthor(); $text = $movieReview->getText(); if ($movieReview->getId() === null) { $query = "INSERT INTO moviereviews (movieid, author, text) " . "VALUES ('{$movieId}', '{$author}', '{$text}')"; } return $this->db->exec($query); }