For this assignment, we'll be working with a Yelp-style domain. We have three models - Restaurant, Customer, and Review. For our purposes, a Restaurant has many Reviews, a Customer has many Reviews, and a Review belongs to a Customer and to a Restaurant. Restaurant - Customer is a many to many relationship.

If you are not sketching out your domain, and thinking about single source of truth, you are doing it wrong :(

• 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 from the command line. You'll be able to test out the methods that you write here. Take a look at that file to see how you can pre-define variables and create object instances, rather than manually doing it in every single console session.

Remember! This is a code challenge without tests. You cannot run rspec you cannot run learn. You'll need to create your own sample instances for testing purposes. Make sure your associations and methods work in the console before submitting.

• Customer.all
  • should return all of the customer instances
• Customer.find_by_name(name)
  • given a string of a full name, returns the first customer whose full name matches
• Customer.find_all_by_first_name(name)
  • given a string of a first name, returns an array containing all customers with that first name
• Customer.all_names
  • should return an array of all of the customer full names

• Restaurant.all
  • returns an array of all restaurants
• Restaurant.find_by_name(name)
  • given a string of restaurant name, returns the first restaurant that matches

• Review.all
  • returns all of the reviews
• Review#customer
  • returns the customer object for that given review
  • Once a review is created, I should not be able to change the author
• Review#restaurant
  • returns the restaurant object for that given review
  • Once a review is created, I should not be able to change the restaurant
• Review#rating
  • returns the star rating for a restaurant. This should be an integer from 1-5
• Review#content
  • returns the review content, as a string, for a particular review

• Customer#add_review(restaurant, content, rating)
  • given a restaurant object, some review content (as a string), and a star rating (as an integer), creates a new review and associates it with that customer and restaurant.
• Customer#num_reviews
  • Returns the total number of reviews that a customer has authored
• Customer#restaurants
  • Returns a unique array of all restaurants a customer has reviewed

• Restaurant#customers
  • Returns a unique list of all customers who have reviewed a particular restaurant.
• Restaurant#reviews
  • returns an array of all reviews for that restaurant
• Restaurant#average_star_rating
  • returns the average star rating for a restaurant based on its reviews
• Restaurant#longest_review
  • returns the longest review content for a given restaurant