associations_migration.rb

# create a new migration with:
#   'rails generate migration add_moviegoers_and_reviews'
# Then make it look like the below:
class AddMoviegoersAndReviews < ActiveRecord::Migration
  def up
    create_table :moviegoers do |t|
      t.string 'username'
    end
    create_table :reviews do |t|
      t.integer 'potatoes'
      t.references :moviegoers
      t.references :movies
    end
  end
  def down
    drop_table :reviews
    drop_table :moviegoers
  end
end