SUSE/hackweek

class Notification < ActiveRecord::Base
  belongs_to :recipient, class_name: 'User'
  belongs_to :actor, class_name: 'User'
  belongs_to :notifiable, polymorphic: true

  scope :unread, -> { where(read_at: nil) }
  scope :logged_in, ->(user) { where(recipient: user) }
end