def cinema():
db_handler = DBHandler()
id = request.args.get("id")
provider = db_handler.get_provider_by_id(id=id)
movies_in = db_handler.get_items_in_provider(provider_id=provider.id)
movies_id = [movie.id for movie in movies_in]
movies_obj = db_handler.get_items_by_ids(movies_id)
auth = current_user.is_authenticated
""" We are going to sort movies for user """
if auth:
model = ALSRecommender()
model.load()
scores = model.score(id, movies_id)
movies_obj = list(np.array(movies_obj)[np.argsort(scores)[::-1]])
movies_obj = movies_obj[:MOVIES_TO_SHOW]
return render_template(
"cinema.html",
provider=provider,
movies=movies_obj,
auth=auth,
len_movies=len(movies_obj),
)
def find_negative_item(user_id):
db_handler = DBHandler()
all_items = db_handler.get_all_items()
items_ids = [item.id for item in all_items]
interacted_items = db_handler.get_interactions_by_id(user_id=user_id)
interacted_items_id = [item.item_id for item in interacted_items]
not_interacted_items_id = list(set(items_ids) - set(interacted_items_id))
not_interacted_items = db_handler.get_items_by_ids(not_interacted_items_id)
if not_interacted_items is None:
return None
else:
not_interacted_item = np.random.choice(not_interacted_items)
return not_interacted_item
