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a guest May 16th, 2018 112 Never
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  1. ## photo_meta.rb
  2.  
  3. module PhotoMeta
  4.   def self.new(data)
  5.     return YAML.load(data)
  6.   end
  7. end
  8.  
  9. ## photo.rb
  10.  
  11. class Photo < ActiveRecord::Base
  12.   has_attachment :storage => :file_system
  13.  
  14.   composed_of :meta, :class_name => 'PhotoMeta', :mapping => [%w(meta_data to_yaml)]
  15.  
  16.   after_resize do |record,img|
  17.     if record.meta_data.blank?
  18.       record.meta = MiniExiftool.new(record.temp_path, :composite => true)
  19.       record.caption = record.meta.headline
  20.       record.description = record.meta.description
  21.       record.tag_list = record.meta.keywords
  22.     end
  23.   end
  24. end
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