Welcome to FlatMDb, our awesome movie database! We have three models - Movie, Actor, and Role. A Movie has many Actors through Roles.

Before you start - sketch out the domain models, and think about how they connect.

• Classes vs Instances
• Variable Scope ( Class, Instance, Local )
• Object Relationships
• Arrays and Array Methods
• Class Methods

Your goal is to build out all of the methods listed in the deliverables. Do your best to follow Ruby best practices. For example, use higher-level array methods such as map, select, and find when appropriate in place of each

We've provided you with a console that you can use to test your code as well as some seed data. To enter a console session, run ruby run.rb from the command line. You'll be able to test out the methods that you write here.

Remember! This is a code challenge without tests. You cannot run rspec you cannot run learn. Make sure your associations and methods work in the console before submitting.

• Actor#name
  • returns a string that is the actor's name
  • Once a actor is created, their name cannot be changed.
• Actor#age
  • returns an integer for the actor's age
• Actor#rank
  • returns a string representing the actor's rank
  • valid ranks are: "A", "B", "C", "D", and "E"
• Actor.all
  • should return all of the actor instances
• Actor.average_age
  • should return the average age of all actors in the database
• Actor.a_list
  • should return an array of all actors with a rank of "A"
• BONUS Actor#lie_about_age
  • given an integer of an age, change the actor's age AND rank
  • if the new age is higher than their actual age, their rank should go down; if it's lower, their rank should go up

• Movie#title
  • returns a string that is the movie's title
• Movie#year
  • returns an integer that is the year the movie was released
• Movie#box_office
  • returns a integer that is the amount of money the movie made at the box office
• Movie#within_five_years
  • return an array of movies that have a release year that is either five years later or five years less than the movie instance calling this method's release year
  • Example: I am movie 1 and I was released in 2000. If you have a release year of 1995-2005, you should be included, but don't include the movie calling it!
• Movie.all
  • returns an array of all the movies
• Movie.blockbusters
  • return an array of all movies that made over $50 mil
• Movie.box_office_total_by_year
  • Given a year, return an integer representing the sum of all the movies' box office earnings in a given year

• Role#actor
  • returns the actor object for that given role
  • Once a role is created, I should not be able to change the actor
• Role#movie
  • returns the movie object for that given role
  • Once a role is created, I should not be able to change the movie
• Role#name
  • returns a string that is the character's name
• Role#earnings
  • returns a number representing the percentage of the movie's box office earnings that the actor gets paid
  • This should be a float that is not a negative number.
• Role.all
  • returns all of the roles

• Actor#sign_contract
  • given a movie object, character name (as a string), and their earnings percentage (as a float), creates a new role and associates it with that movie and actor.
• Actor#total_roles
  • Returns the total number of roles that the actor has had
• Actor#movies
  • Returns all the movie instances the actor has been in
• Actor#blockbusters
  • Returns all the movie instances the actor has been in that made over $50 mil
• Actor#total_earnings
  • Returns a number representing the actor's total earnings for all their roles
  • HINT: you will have to calculate the actor's earning for each role using their earnings percentage and the movie's box office total
• Actor.most_successful
  • Return the actor whose films have made the most money

• Movie#cast_role
  • given an actor instance, character_name, and earnings, create a new role for them in this film
• Movie#stars_by_rank
  • return a list of actors in this movie sorted by their rank