lib/eco/data/mapper.rb in eco-helpers-2.5.10 vs lib/eco/data/mapper.rb in eco-helpers-2.6.0

@@ -60,18 +60,23 @@
       def include?(value)
         return true if !@source
         internal?(value) || external?(value)
       end
 
+      # Whether `value` maps to itself
+      def self_mapped?(value)
+        return false unless include?(value)
+        value == to_internal(value)
+      end
+
       def to_internal(value)
         return value if !@source
         @by_external[value]
       end
 
       def to_external(value)
         return value if !@source
         @by_internal[value]
       end
-
     end
   end
 end