class FaxDocument < ActiveRecord::Base # attr_accessible :inbound, :transmission_time, :sent_at, :document_total_pages, :document_transferred_pages, :ecm_requested, :ecm_used, :image_resolution, :image_size, :local_station_id, :result_code, :result_text, :remote_station_id, :success, :transfer_rate, :t38_gateway_format, :t38_peer, :document mount_uploader :document, DocumentUploader mount_uploader :tiff, TiffUploader validates_presence_of :document validates_numericality_of :retry_counter, :only_integer => true, :greater_than_or_equal_to => 0 belongs_to :fax_account belongs_to :fax_resolution validates_presence_of :fax_resolution_id validates_presence_of :fax_resolution has_one :destination_phone_number, :class_name => 'PhoneNumber', :as => :phone_numberable, :dependent => :destroy accepts_nested_attributes_for :destination_phone_number has_many :fax_thumbnails, :order => :position, :dependent => :destroy after_create :convert_pdf_to_tiff after_create :render_thumbnails # Scopes scope :inbound, where(:state => 'inbound') scope :outbound, where(:state => ['queued_for_sending','sending','successful','unsuccessful']) # State Machine stuff state_machine :initial => :new do event :queue_for_sending do transition [:new] => :queued_for_sending end event :send_now do transition [:queued_for_sending] => :sending end event :cancel do transition [:sending, :queued_for_sending] => :unsuccessful end event :successful_sent do transition [:sending, :queued_for_sending] => :successful end event :mark_as_inbound do transition [:new] => :inbound end end def to_s "#{self.remote_station_id}-#{self.created_at}-#{self.id}".gsub(/[^a-zA-Z0-9]/,'') end def render_thumbnails self.delay.create_thumbnails_and_save_them end def create_thumbnails_and_save_them tmp_dir = "/var/spool/gemeinschaft/fax_convertions/#{self.id}" FileUtils.mkdir_p tmp_dir system("cd #{tmp_dir} && convert #{self.document.path} -colorspace Gray PNG:'fax_page.png'") Dir.glob("#{tmp_dir}/fax_page*.png").each do |thumbnail| fax_thumbnail = self.fax_thumbnails.build fax_thumbnail.thumbnail = File.open(thumbnail) fax_thumbnail.save end FileUtils.rm_rf tmp_dir end private def convert_pdf_to_tiff page_size_a4 = '595 842' page_size_command = "<< /Policies << /PageSize 3 >> /InputAttributes currentpagedevice /InputAttributes get dup { pop 1 index exch undef } forall dup 0 << /PageSize [ #{page_size_a4} ] >> put >> setpagedevice" directory = "/var/spool/gemeinschaft/GS-#{GsParameter.get('GEMEINSCHAFT_VERSION')}/faxes/#{self.id}" FileUtils.mkdir_p directory tiff_file_name = File.basename(self.document.to_s.downcase, ".pdf") + '.tiff' system "cd #{directory} && gs -q -r#{self.fax_resolution.resolution_value} -dNOPAUSE -dBATCH -dSAFER -sDEVICE=tiffg3 -sOutputFile=\"#{tiff_file_name}\" -c \"#{page_size_command}\" -- \"#{Rails.root.to_s}/public#{self.document.to_s}\"" self.tiff = File.open("#{directory}/#{tiff_file_name}") self.save FileUtils.rm_rf directory end end