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 get_movies_by_page(page, repo: AbstractRepository):
# Returns articles for the target date (empty if no matches), the date of the previous article (might be null), the date of the next article (might be null)
movies = repo.get_movie_by_page(page)
movies_dto = list()
prev_page = next_page = None
if len(movies) > 0:
prev_page = repo.get_page_of_previous_movie(movies[0])
next_page = repo.get_page_of_next_movie(movies[0])
# Convert Articles to dictionary form.
movies_dto = movies_to_dict(movies)
return movies_dto, prev_page, next_page
def get_movie(id: int, repo: AbstractRepository):
movie = repo.get_movie(id)
if movie is None:
raise NonExistentArticleException
return movie_to_dict(movie)
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_genre_names(repo: AbstractRepository):
genres = repo.get_genre()
genre_names = [genre.genre_name for genre in genres]
return genre_names
def get_last_movie(repo: AbstractRepository):
movie = repo.get_last_movie()
return movie_to_dict(movie)
def get_user(username: str, repo: AbstractRepository):
user = repo.get_user(username)
if user is None:
raise UnknownUserException
return user_to_dict(user)