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@@ -4,7 +4,7 @@ require 'pathname'
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 gem 'dm-core', '=0.9.2'
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 require 'dm-core'
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-require Pathname(__FILE__).dirname.expand_path / 'dm-is-nested_interval' / 'is' / 'nested_interval.rb'
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+require Pathname(__FILE__).dirname.expand_path  / 'is' / 'nested_interval.rb'
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 module DataMapper
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   module Resource

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@@ -4,15 +4,49 @@ module DataMapper
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       def is_nested_interval
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         extend DataMapper::Is::NestedInterval::ClassMethods
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-        include DataMapper::Is::NestedInterval::InstanceMethods  
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+        include DataMapper::Is::NestedInterval::InstanceMethods
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+        
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+        property :numer, Integer
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+        property :denom, Integer
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+        
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+        # This is where the logic goes for saving a new record
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+        before :save do
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+           # Possible scenarios
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+           #  - user creates a new object, doesn't specify a parent object
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+           #  - user creates a new object that references a parent directly
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+        end
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+        
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+        # This is where the logic goes for updating a record - Thar be dragons
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+        before :update do
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+        end
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+        
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+        before :delete do
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+        end
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+                
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       end
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-      module ClassMethods
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+      module ClassMethods        
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       end
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       module InstanceMethods
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+        def delete
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+        end
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+        
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+        # Greatest Common Denominator method
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+        def greatest_common_denominator(n, d)
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+          while(n % d) != 0
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+            n, d = d.round, (n % d).round
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+          end 
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+          return d
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+        end
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+        
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+        def rational(n, d)
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+          self.numer  = n / greatest_common_denominator(n, d);
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+          self.denom  = d / greatest_common_denominator(n, d);
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+        end
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+        
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       end
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-      
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+
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     end
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-  end
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-end
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\ No newline at end of file
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+  end # Is
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+end # DataMapper
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\ No newline at end of file