For this assignment, we'll be building out Netflix! A viewer has left many ratings on movies, and a movie has been rated by many views.
As always, make sure to sketch out your domain and think about the single source of truth for your data.
- 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. To enter a console session, run ruby tools/console.rb. You'll be able to test out the methods that you write here.
To Submit - once you've completed all the deliverables, please copy/paste your three class definitions into the solution.rb file. Please don't submit the lab until we give you the signal.
Build the following methods on the viewer class
- Viewer.all
- should return all of the viewers
- Viewer.find_by_name(name)
- given a string of a full name, returns the first customer whose full name matches
- Viewer#create_rating
- given a score and a movie, creates a new Rating and associates it with that viewer and that movie
Build out the following methods on the Rating class
- Rating.all
- returns all of the ratings
- Rating#viewer
- returns the viewer for that given rating
- Rating#movie
- returns the movie for that given rating
Build out the following methods on the movie class
- Movie.all
- returns an array of all movies
- Movie.find_by_title(title)
- given a string of movie title, returns the first movie that matches
- Movie#ratings
- returns an array of all ratings for that movie
- Movie#viewers
- should return all of the viewers who have left ratings for that movie.
- Movie#average_rating
- should return the average of all of the scores for the ratings of that particular movie.