First, write a class named Movie that has four data members: title, genre, director, and year. It should have: an init method that takes as arguments the title, genre, director, and year (in that order) and assigns them to the data members. The year is an integer and the others are strings. get methods for each of the data members (get_title, get_genre, get_director, and get_year). Next write a class named StreamingService that has two data members: name and catalog. the catalog is a dictionary of Movies, with the titles as the keys and the Movie objects as the corresponding values (you can assume there aren't any Movies with the same title). The StreamingService class should have: an init method that takes the name as an argument, and assigns it to the name data member. The catalog data member should be initialized to an empty dictionary. get methods for each of the data members (get_name and get_catalog). a method named add_movie that takes a Movie object as an argument and adds it to the catalog. a method named delete_movie that takes a movie title as an argument and if that Movie is in the catalog, removes it. Lastly, write a class named StreamingGuide that has one data member, a list of StreamingServices. It should have: an init method that takes no arguments and initializes the data member to an empty list. a method called add_streaming_service that takes a StreamingService object as an argument and adds it to the list. a method named delete_streaming_service that takes the name of a streaming service as an argument and if it's in the list, removes it. a method named where_to_watch that takes a movie title as an argument and returns a list. Element 0 of the list is a string that is the concatenation of the name and year of the movie (with the year in parentheses), with the rest of the list being the names of streaming services showing that movie. For example, the list that is returned might look like this: ['King Kong (1933)', 'HBO Max', 'epix', 'Kanopy']. If the movie is not available on any of the StreamingServices, the method should return None. So a StreamingGuide will have a list of StreamingServices, and a Streaming Service will have a dictionary of Movies. The where_to_watch method needs to use this nested information to determine which StreamingServices, if any, have the desired movie available.

First, write a class named Movie that has four data members: title, genre, director, and year. It should have: an init method that takes as arguments the title, genre, director, and year (in that order) and assigns them to the data members. The year is an integer and the others are strings. get methods for each of the data members (get_title, get_genre, get_director, and get_year). Next write a class named StreamingService that has two data members: name and catalog. the catalog is a dictionary of Movies, with the titles as the keys and the Movie objects as the corresponding values (you can assume there aren't any Movies with the same title). The StreamingService class should have: an init method that takes the name as an argument, and assigns it to the name data member. The catalog data member should be initialized to an empty dictionary. get methods for each of the data members (get_name and get_catalog). a method named add_movie that takes a Movie object as an argument and adds it to the catalog. a method named delete_movie that takes a movie title as an argument and if that Movie is in the catalog, removes it. Lastly, write a class named StreamingGuide that has one data member, a list of StreamingServices. It should have: an init method that takes no arguments and initializes the data member to an empty list. a method called add_streaming_service that takes a StreamingService object as an argument and adds it to the list. a method named delete_streaming_service that takes the name of a streaming service as an argument and if it's in the list, removes it. a method named where_to_watch that takes a movie title as an argument and returns a list. Element 0 of the list is a string that is the concatenation of the name and year of the movie (with the year in parentheses), with the rest of the list being the names of streaming services showing that movie. For example, the list that is returned might look like this: ['King Kong (1933)', 'HBO Max', 'epix', 'Kanopy']. If the movie is not available on any of the StreamingServices, the method should return None. So a StreamingGuide will have a list of StreamingServices, and a Streaming Service will have a dictionary of Movies. The where_to_watch method needs to use this nested information to determine which StreamingServices, if any, have the desired movie available.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In python and include doctring:

First, write a class named Movie that has four data members: title, genre, director, and year. It should have:

an init method that takes as arguments the title, genre, director, and year (in that order) and assigns them to the data members. The year is an integer and the others are strings.
get methods for each of the data members (get_title, get_genre, get_director, and get_year).

Next write a class named StreamingService that has two data members: name and catalog. the catalog is a dictionary of Movies, with the titles as the keys and the Movie objects as the corresponding values (you can assume there aren't any Movies with the same title). The StreamingService class should have:

an init method that takes the name as an argument, and assigns it to the name data member. The catalog data member should be initialized to an empty dictionary.
get methods for each of the data members (get_name and get_catalog).
a method named add_movie that takes a Movie object as an argument and adds it to the catalog.
a method named delete_movie that takes a movie title as an argument and if that Movie is in the catalog, removes it.

Lastly, write a class named StreamingGuide that has one data member, a list of StreamingServices. It should have:

an init method that takes no arguments and initializes the data member to an empty list.
a method called add_streaming_service that takes a StreamingService object as an argument and adds it to the list.
a method named delete_streaming_service that takes the name of a streaming service as an argument and if it's in the list, removes it.
a method named where_to_watch that takes a movie title as an argument and returns a list. Element 0 of the list is a string that is the concatenation of the name and year of the movie (with the year in parentheses), with the rest of the list being the names of streaming services showing that movie. For example, the list that is returned might look like this: ['King Kong (1933)', 'HBO Max', 'epix', 'Kanopy']. If the movie is not available on any of the StreamingServices, the method should return None.

So a StreamingGuide will have a list of StreamingServices, and a Streaming Service will have a dictionary of Movies. The where_to_watch method needs to use this nested information to determine which StreamingServices, if any, have the desired movie available.

Here's a simple example of how your code might be used:

movie_1 = Movie('The Seventh Seal', 'comedy', 'Ingmar Bergman', 1957) movie_2 = Movie('Home Alone', 'tragedy', 'Chris Columbus', 1990) movie_3 = Movie('Little Women', 'action thriller', 'Greta Gerwig', 2019) movie_4 = Movie('Galaxy Quest', 'historical documents', 'Dean Parisot', 1999) stream_serv_1 = StreamingService('Netflick') stream_serv_1.add_movie(movie_2) stream_serv_2 = StreamingService('Hula') stream_serv_2.add_movie(movie_1) stream_serv_2.add_movie(movie_4) stream_serv_2.delete_movie('The Seventh Seal') stream_serv_2.add_movie(movie_2) stream_serv_3 = StreamingService('Dizzy+') stream_serv_3.add_movie(movie_4) stream_serv_3.add_movie(movie_3) stream_serv_3.add_movie(movie_1) stream_guide = StreamingGuide() stream_guide.add_streaming_service(stream_serv_1) stream_guide.add_streaming_service(stream_serv_2) stream_guide.add_streaming_service(stream_serv_3) stream_guide.delete_streaming_service('Hula') search_results = stream_guide.where_to_watch('Little Women')

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