def get_movie(movie_id: int, repo: AbstractRepository):
movie = repo.get_movie_by_id(movie_id)
if movie is None:
raise NonExistentMovieException
return movie_to_dict(movie)
def get_reviews_for_movie(movie_id, repo: AbstractRepository):
movie = repo.get_movie_by_id(movie_id)
if movie is None:
raise NonExistentMovieException
return reviews_to_dict(movie.reviews)
def add_review(movie_id: int, review_text: str, rating: int, username: str, repo: AbstractRepository):
# Check that the movie exists.
movie = repo.get_movie_by_id(movie_id)
if movie is None:
raise NonExistentMovieException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
# Create review.
review = Review(username, movie, review_text, rating)
# Update the repository.
user.add_review(review)
def get_random_movie(quantity, repo: AbstractRepository):
movie_count = repo.get_number_of_movies()
random_ids = random.sample(range(1, movie_count), quantity)
movies = repo.get_movie_by_id(random_ids)
return movies
