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										 |  |  | class SubRole < Attribute | 
					
						
							|  |  |  |    | 
					
						
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										 |  |  |   belongs_to :role | 
					
						
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										 |  |  |   has_and_belongs_to_many :users | 
					
						
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							|  |  |  |   # Get an sub_role from key | 
					
						
							|  |  |  |   def self.get_sub_role_from_key(key) | 
					
						
							|  |  |  |     self.first(:conditions => {:key => key}) | 
					
						
							|  |  |  |   end | 
					
						
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							|  |  |  | end |