app/models/system_picture.rb

   1 class SystemPicture < ActiveRecord::Base
   2   has_many :balloons
   3   has_many :balloon_templates
   4
   5   def validate
   6     errors.add(:filesize, 'size over(1MB)') if self.filesize > 1000000
   7   end
   8
   9   def dext
  10     self.ext.downcase
  11   end
  12
  13   def filename
  14     "#{self.id}.#{self.dext}"
  15   end
  16
  17   def mime_type
  18     "image/#{self.dext}"
  19   end
  20
  21   def url
  22     '/system_pictures/' + filename
  23   end
  24
  25   def store(rimg)
  26     bindata = rimg.to_blob
  27     PictureIO.system_picture_io.put bindata, self.filename
  28     true
  29   end
  30
  31   def restore(subdir = nil)
  32     PictureIO.system_picture_io.get self.filename, subdir
  33   end
  34
  35 end