|  | class AssetCategory
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							|  |   include Mongoid::Document
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							|  |   include Mongoid::Timestamps
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							|  | 
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							|  |   field :key
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							|  |   field :display
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							|  |   
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							|  |   has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
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							|  |   
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							|  |   has_many :assets
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							|  |   
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							|  |   def self.from_id(id)
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							|  |     AssetCategory.find(id) rescue nil
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							|  |   end
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							|  |   
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							|  | end |