def add_to_watchlist(movie_id: int, username: str, repo: AbstractRepository):
if repo.get_user(username) is None:
raise UnknownUserException
if repo.get_movie(movie_id) is None:
raise NonExistentMovieException
repo.add_to_watchlist(repo.get_movie(movie_id), repo.get_user(username))
def authenticate_user(username: str, password: str, repo: AbstractRepository):
authenticated = False
user = repo.get_user(username)
if user is not None:
authenticated = check_password_hash(user.password, password)
if not authenticated:
raise AuthenticationException
def get_watchlist(username: str, repo: AbstractRepository):
user = repo.get_user(username)
if user is not None:
pass
else:
raise UnknownUserException
return user.watchlist
def add_user(username: str, password: str, repository: AbstractRepository):
user = repository.get_user(username)
if user is not None:
raise NameNotUniqueException
password_hash = generate_password_hash(password)
user = User(username, password_hash)
repository.add_user(user)
def add_to_watchlist(movie_id: int, username: str, repo: AbstractRepository):
movie = repo.get_movie(movie_id)
# if movie is None:
# raise NonExistentMovieException
user = repo.get_user(username)
# if user is None:
# raise UnknownUserException
repo.add_to_watchlist(movie, user)
def remove_from_watchlist(movie_id: int, username: str,
repo: AbstractRepository):
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentMovieException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
repo.remove_from_watchlist(movie, user)
def add_user(username: str, password: str, repo: AbstractRepository):
# Check that the given username is available.
user = repo.get_user(username)
if user is not None:
raise NameNotUniqueException
# Encrypt password so that the database doesn't store passwords 'in the clear'.
password_hash = generate_password_hash(password)
# Create and store the new User, with password encrypted.
user = User(username, password_hash)
repo.add_user(user)
def add_review(movie_id: int, review_text: str, username: str,
repo: AbstractRepository):
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentMovieException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
review = make_review(review_text=review_text, user=user, movie=movie)
repo.add_review(review)
return review_to_dict(review)
def add_review(movie_id: int, review_text: str, username: str, repo: AbstractRepository):
# Check that the movie exists.
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentMovieException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
# Create review.
review = make_review(review_text, user, movie)
# Update the repository.
repo.add_review(review)
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_user(username: str, repository: AbstractRepository):
user = repository.get_user(username)
if user is None:
raise UnknownUserException
return user_to_dict(user)
def get_watchlist(username: str, repo: AbstractRepository):
if repo.get_user(username) is None:
raise UnknownUserException
return repo.get_user(username).watchlist
