# == Schema Information
# Schema version: 20110504074503
#
# Table name: orders
#
#  id            :integer         not null, primary key
#  user_id       :integer         not null
#  internal_name :string(255)     not null
#  external_name :string(255)
#  state         :string(255)
#  created_at    :datetime
#  updated_at    :datetime
#

class Order < ActiveRecord::Base

  has_paper_trail

  belongs_to                          :user
  has_many                            :multipage_pdfs, :as => :assetable,   :dependent => :destroy
  has_many                            :pages,                               :dependent => :destroy

  validates_presence_of               :user, :user_id, :internal_name, :state
  validates_numericality_of           :user_id

  state_machine :initial => :waiting do

    event :start_processing do
      transition any => :processing
    end

    event :processed do
      transition :processing => :processed
    end

  end


end


# == Schema Information
# Schema version: 20110509124929
#
# Table name: assets
#
#  id                    :integer         not null, primary key
#  assetable_id          :integer         not null
#  assetable_type        :string(255)     not null
#  type                  :string(255)     not null
#  state                 :string(255)     not null
#  document_file_name    :string(255)
#  document_content_type :string(255)
#  document_file_size    :integer
#  document_updated_at   :datetime
#  created_at            :datetime
#  updated_at            :datetime
#

class Asset < ActiveRecord::Base
  require 'tmpdir'

  belongs_to                          :assetable, :polymorphic => true

end


class MultipagePdf < Asset

  after_save                          :split
  has_attached_file                   :document


  state_machine :initial => :waiting do

    event :splitted do
      transition :waiting => :splitted
    end

    event :failed do
      transition :waiting => :failed
    end

  end

  protected

    def split
    # ...
    end

end



irb(main):001:0> o = Order.new(:internal_name => "test", :user_id => 1)
=> #<Order id: nil, user_id: 1, internal_name: "test", external_name: nil, state: "waiting", created_at: nil, updated_at: nil>
irb(main):003:0> p = o.multipage_pdfs.build
=> #<MultipagePdf id: 3, assetable_id: 4, assetable_type: "Order", type: "MultipagePdf", state: "failed", document_file_name: nil, document_content_ty
pe: nil, document_file_size: nil, document_updated_at: nil, created_at: "2011-05-10 07:21:19", updated_at: "2011-05-10 07:21:19">
irb(main):004:0> p.new_record?
=> false