def get_comments_for_movie(movie_rank: int, repo: AbstractRepository):
movie = repo.get_movie_by_rank(movie_rank)
if movie is None:
raise NonExistentMovieException
return comments_to_dict(movie.comments)
def add_comment(movie_rank: int, comment_text: str, username: str, repo: AbstractRepository):
# Check that the article exists.
movie = repo.get_movie_by_rank(movie_rank)
if movie is None:
raise NonExistentMovieException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
# Create comment.
comment = make_comment(comment_text, user, movie)
# Update the repository.
repo.add_comment(comment)
def get_movie_by_rank(repo: AbstractRepository, rank: int):
res = repo.get_movie_by_rank(rank)
return res
