Demonstrates that scopes were added to my model, instead of tacking on methods before iteration through future/past events

first2_weeks4.rb

class Event < ActiveRecord::Base
  attr_accessible  :event_at, :attendance_limit, :price, :name, :description,
                   :signup_count, :signup_deadline

  belongs_to :venue
  has_many :attendances, dependent: :destroy
  has_many :users, through: :attendances

  scope :future, -> { where("event_at > ?", Time.now) }
  scope :past, -> { where("event_at < ?", Time.now) }

  validates :event_at, presence: true
  validates :attendance_limit, presence: true
  validates :price, presence: true
  validates :name, presence: true
  validates :signup_deadline, presence: true

  def attendee_count
    attendances.size
  end
end