def __init__(self):
""" init method which initialises the object """
reader = DBReader()
self.all_movies = reader.read_movies()
self.all_ratings = reader.read_ratings()
self.all_genre = reader.read_genre()
self.all_users = reader.read_users()
def most_active_user(all_users, all_ratings):
""" Method to get the most active user """
if all_ratings and all_users and len(all_users) and len(all_ratings):
user_id_dict = {}
for rating in all_ratings:
if user_id_dict.has_key(rating['user_id']):
user_id_dict[rating['user_id']] = user_id_dict[rating['user_id']] + 1
else:
user_id_dict[rating['user_id']] = 0
return max(user_id_dict.iteritems(), key=operator.itemgetter(1))[0]
if __name__ == '__main__':
""" Test of methods """
reader = DBReader()
all_genres = reader.read_genre()
all_movies = reader.read_movies()
all_ratings = reader.read_ratings()
all_users = reader.read_users()
'''
movies = get_top_movie_by_genre(all_genres,all_movies,all_ratings)
for each_genre in movies:
print "=" * 40
print "Top 5 movies of ", each_genre
print "=" * 40
for each_movie in movies[each_genre]:
print each_movie.get_title() , each_movie.ratings
print "=" * 40
def main():
""" Test cases """
# --------------------------------------------------------------------
# For warm up problems
#---------------------------------------------------------------------
reader = DBReader()
all_genres = reader.read_genre()
all_movies = reader.read_movies()
all_ratings = reader.read_ratings()
all_users = reader.read_users()
movies = get_top_movie_by_genre(all_genres,all_movies,all_ratings)
for each_genre in movies:
print "=" * 40
print "Top 5 movies of ", each_genre
print "=" * 40
for each_movie in movies[each_genre]:
print each_movie.get_title() , each_movie.ratings
print "=" * 40
movies = get_top_movie_by_year(all_genres,all_movies,all_ratings)
for each_year in movies:
print "=" * 40
print "Top movies of ", each_year
print "=" * 40
for each_movie in movies[each_year]:
print each_movie.get_title() , each_movie.ratings
print "=" * 40
movies = get_top_movie_by_year_and_genre(all_genres,all_movies,all_ratings)
for each_year in movies:
print "=" * 40
print "Year ", each_year
print "=" * 40
for genres in movies[each_year]:
for each_genre in genres:
if len(genres[each_genre]) > 1:
for m in genres[each_genre]:
print m.get_title()
# highest watched movies is based on no of users who rated that movie
movie = most_watched_movie(all_movies, all_ratings)
print "most watched movie", movie.title
print "=" * 40
genre = most_watched_genre(all_movies, all_ratings, all_genres)
print "Most watched genre : ", genre
genre = highest_rated_genre(all_movies, all_ratings, all_genres)
print "Highest rated genre: ", genre
user = most_active_user(all_users, all_ratings)
print "Most active user is user with user id : ", user
print "-" * 40
# --------------------------------------------------------------------
# For Assignment
#---------------------------------------------------------------------
recommender = Recommender()
movies_recommended = recommender.recommend_for(16660)
if movies_recommended is not None:
print "-" * 35
print "Recommended top 5 movies for you!"
print "-" * 35
for movie in movies_recommended:
print movie.get_title()
print "-" * 35
movies_recommended = recommender.recommend_for(166)
if movies_recommended is not None:
print "-" * 35
print "Recommended top 5 movies for you!"
print "-" * 35
for movie in movies_recommended:
print movie.get_title()
print "-" * 35