We have 3 models: Rockstar, Concert, and Fan

• A rockstar has many concerts
• A fan has many concerts
• A concert belongs to a rockstar and to a fan
• Rockstar - Fan is a many to many relationship

To test your code, run ruby tools/console.rb from the terminal. You'll be able to test out the methods that you write here.

• #add_concert(rockstar, name, number_fans)
  • takes 3 arguments: rockstar object, a name (string), number_fans (integer)
  • creates a new concert and associates it with that fan and rockstar
• #num_concerts
  • returns total number of concerts a fan has
• #rockstars
  • returns a unique array fo all rockstars a fan will see in concert
• .find_name(name)
  • given a name (string), returns first fan with matching name
• .all
  • return all fans

• #fans
  • returns unique list of all fans who will see this rockstar in concert
• #concerts
  • returns array of concerts for this rockstar
• #average_number_fans
  • returns average number of fans for rockstar based on concerts
• #largest_concert
  • returns name of concert with highest number of fans for a given rockstar
• .all
  • return all rockstars

• #fan
  • returns fan object for that concert
  • when a concert is created, I shouldn't change the fan
• #rockstar
  • returns rockstar object for that concert
  • when a concert is created, I shouldn't change the rockstar
• #name
  • returns the name of the concert, as a string
• #number_fans
  • returns how many fans are going to this concert, as an integer
• .all
  • return all concerts