gistfile1.rb

class Notification < ActiveRecord::Base
  self.table_name = 'some_notifications'

  NONE        = 0
  EMAIL       = 1
  EMAIL2      = 2
  SMS         = 3
  CALL        = 4

  QUEUED    = 0
  SENT      = 1
  ACCEPTED  = 2
  EXPIRED   = 3
  ARCHIVED  = 9

  STATES = {
    :queued     => QUEUED,
    :sent       => SENT,
    :accepted   => ACCEPTED,
    :expired    => EXPIRED,
    :archived   => ARCHIVED,
  }

  NOTIFICATION_METHODS = {
    :none       => NONE,
    :email      => EMAIL,
    :email2     => EMAIL2,
    :sms        => SMS,
    :call       => CALL,
  }

  belongs_to :user,   :class_name => User.to_s
  belongs_to :parent

  # validations
  validates_presence_of :parent
  validates_presence_of :user

  default_scope :order => "id"

  NOTIFICATION_METHODS.each do |key, value|
    scope key,    :conditions => {:state => value}
  end

  STATES.each do |key, value|
    scope key,    :conditions => {:state => value}
  end


  scope :valid,       :conditions => {:state.not_eq => ARCHIVED}
  # LONG LIST OF SCOPES


  # State of notification
  state_machine :state, :initial => :queued do
    # EVENTS & TRANSITIONS
    STATES.each do |key, value|
      state key,    :value => value
    end
  end
end