def get_random_movies(quantity, repo: AbstractRepository):
movie_cout = repo.get_number_of_movies()
if quantity >= movie_cout:
quantity = movie_cout - 1
random_ids = random.sample(range(1, movie_cout), quantity)
movies = repo.get_movies_by_id(random_ids)
return movies_to_dict(movies)
def get_sorted_movies_by_year(year, repo: AbstractRepository):
movies = repo.get_sorted_movies_by_year(target_year=year)
movies_dto = list()
prev_year = next_year = None
if len(movies) > 0:
prev_year = repo.get_year_of_previous_movie(movies[0])
next_year = repo.get_year_of_next_movie(movies[0])
movies_dto = movies_to_dict(movies)
return movies_dto, prev_year, next_year
def add_user(username: str, password: str, repo: AbstractRepository):
user = repo.get_user(username)
if user is not None:
raise NameNotUniqueException
password_hash = generate_password_hash(password)
user = User(username, password_hash)
repo.add_user(user)
def get_random_movies(quantity, repo: AbstractRepository):
movie_count = repo.get_number_of_movies()
if quantity >= movie_count:
# Reduce the quantity of ids to generate if the repository has an insufficient number of movies.
quantity = movie_count - 1
# Pick distinct and random movies.
random_ids = range(1, movie_count)
movies = repo.get_movies_by_id(random_ids)
return movies_to_dict(movies)
def get_random_articles(quantity, repo: AbstractRepository):
article_count = repo.get_number_of_articles()
if quantity >= article_count:
# Reduce the quantity of ids to generate if the repository has an insufficient number of articles.
quantity = article_count - 1
# Pick distinct and random articles.
random_ids = random.sample(range(1, article_count), quantity)
articles = repo.get_articles_by_id(random_ids)
return articles_to_dict(articles)
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, rating: int, repo: AbstractRepository):
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentArticleException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
review = Review(movie, review_text, user, rating)
review.movie = movie
movie.add_review(review)
user.add_review(review)
repo.add_review(review)
def add_comment(title: str, comment_text: str, username: str, repo: AbstractRepository):
# Check that the article exists.
movie = repo.get_movies_by_title(title)
if movie is None:
raise NonExistentArticleException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
# Create comment.
comment = make_review(movie, comment_text)
# Update the repository.
repo.add_review(comment)
def add_comment(article_id: int, comment_text: str, username: str, repo: AbstractRepository):
# Check that the article exists.
article = repo.get_article(article_id)
if article is None:
raise NonExistentArticleException
user = repo.get_user(username)
if user is None:
raise UnknownUserException
# Create comment.
comment = make_comment(comment_text, user, article)
# Update the repository.
repo.add_comment(comment)
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 get_movies_by_date(date, repo: AbstractRepository):
# Returns movies for the target date (empty if no matches), the date of the previous movie (might be null), the date of the next movie (might be null)
movies = repo.get_movies_by_date(target_date=date)
movies_dto = list()
prev_date = next_date = None
if len(movies) > 0:
prev_date = repo.get_date_of_previous_movie(movies[0])
next_date = repo.get_date_of_next_movie(movies[0])
# Convert Movies to dictionary form.
movies_dto = movies_to_dict(movies)
return movies_dto, prev_date, next_date
def get_comments_for_article(article_id, repo: AbstractRepository):
article = repo.get_article(article_id)
if article is None:
raise NonExistentArticleException
return comments_to_dict(article.comments)
def get_article(article_id: int, repo: AbstractRepository):
article = repo.get_article(article_id)
if article is None:
raise NonExistentArticleException
return article_to_dict(article)
def get_movie(title: str, repo: AbstractRepository):
movie = repo.get_movies_by_title(title)
if movie is None:
raise NonExistentArticleException
return movie_to_dict(movie)
def get_movies_by_id(id_list, repo: AbstractRepository):
movies = repo.get_movies_by_id(id_list)
# Convert Movies to dictionary form.
movies_as_dict = movies_to_dict(movies)
return movies_as_dict
def get_articles_by_date(date, 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)
articles = repo.get_articles_by_date(target_date=date)
articles_dto = list()
prev_date = next_date = None
if len(articles) > 0:
prev_date = repo.get_date_of_previous_article(articles[0])
next_date = repo.get_date_of_next_article(articles[0])
# Convert Articles to dictionary form.
articles_dto = articles_to_dict(articles)
return articles_dto, prev_date, next_date
def get_reviews_for_movie(movie_id, repo: AbstractRepository):
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentMovieException
return reviews_to_dict(movie.reviews)
def get_movies_by_rank(rank_list, repo: AbstractRepository):
movies = repo.get_movies_by_rank(rank_list)
# Convert Articles to dictionary form.
movies_as_dict = movies_to_dict(movies)
return movies_as_dict
def get_movie(movie_rank: int, repo: AbstractRepository):
movie = repo.get_movie(movie_rank)
if movie is None:
raise NonExistentArticleException
return movie_to_dict(movie)
def get_movie(movie_id: int, repo: AbstractRepository):
movie = repo.get_movie(movie_id)
if movie is None:
raise NonExistentMovieException
return movie_to_dict(movie)
def get_articles_by_id(id_list, repo: AbstractRepository):
articles = repo.get_articles_by_id(id_list)
# Convert Articles to dictionary form.
articles_as_dict = articles_to_dict(articles)
return articles_as_dict
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_actor_names(repo: AbstractRepository):
actors = repo.get_actors()
actor_names = [actor.actor_full_name for actor in actors]
return actor_names
def get_entire_movies(repo: AbstractRepository):
movies = repo.get_movie_list()
return movies
def get_entire_movies_cut(list1, repo: AbstractRepository):
movies = repo.get_movie_list_cut(list1)
movies_as_dict = movies_to_dict(movies)
return movies_as_dict
def get_movie_ids_for_genre(genre_name, repo: AbstractRepository):
movie_ids = repo.get_movie_ids_for_genre(genre_name)
return movie_ids
def get_genre_names(repo: AbstractRepository):
genres = repo.get_genres()
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_director_names(repo: AbstractRepository):
directors = repo.get_directors()
director_names = [director.director_full_name for director in directors]
return director_names
def get_tag_names(repo: AbstractRepository):
tags = repo.get_tags()
tag_names = [tag.tag_name for tag in tags]
return tag_names
