photo.rb

require 'mime/types'
require 'RMagick' 

class Photo < ActiveRecord::Base

  establish_connection 'portal'
  set_table_name 'photos'

  belongs_to :kase
  belongs_to :doctor
  belongs_to :photo_email

  has_attached_file :photo,
                    :styles => {
                      :thumb => ["150x150>", :jpg],
                      :medium => ["600x600>", :jpg],
                      :Case => ["1200x1200>", :jpg] },
                    :processors => [:rotater, :thumbnail],
                    :default_style => :medium,
                    :path => ':rails_root/public/kase_photos/:style/:kase_id/:id_:basename.:extension',
                    :url => '/kase_photos/:style/:kase_id/:id_:basename.:extension'

  after_photo_post_process  :post_process_photo

  named_scope :unattached, :conditions => "RTRIM(kase_id) = '' ",
              :order => 'created_at ASC'
   # ...
   # More named scopes here
   # ...

  # Fix the mime types. Needs mime-types gem
  def swfupload_file=(data)
    data.content_type = MIME::Types.type_for(data.original_filename)
    self.photo = data
  end

  @@exif_date_format = '%Y:%m:%d %H:%M:%S'

  # Post processing
  def post_process_photo
    #...
    #...
  end

  # Save photos and returns nil if all the photo didn't save
  # Otherwise return the number of photos saves 
  def self.save_from_email photos, pemail
    photocount = 1
    photos.each do |p|
      photo = Photo.new(:photo => File.new(p), :source => 'email',
                        :photo_email_id => pemail.id, :kase_id => pemail.kase_id,
                        :doctor_id => pemail.doctor_id)
      photo.save! ? photocount += 1 : break
    end
    photocount == photos.length ? photocount : nil
  end

  # Experimental for the time being
  def self.generate_pdf
    #..
  end
  
end