excel_functions.rb in rubyfromexcel-0.0.17

- old
+ new

@@ -73,11 +73,11 @@
     
     def set(cell,value)
       instance_variable_name = "@#{cell}"
       unless instance_variable_defined?(instance_variable_name)
         self.class.class_eval do
-          if method_defined?(cell)
+          if method_defined?(cell) && !method_defined?("old_#{cell}")
             alias_method "old_#{cell}", cell
             define_method(cell) do
               instance_variable_get(instance_variable_name) || self.send("old_#{cell}")
             end
           end
@@ -486,6 +486,6 @@
       reference = parsed_reference.visit(RuntimeFormulaBuilder.new(self,refering_cell && Reference.new(refering_cell)))
       formula_cache[[:indirect_result,reference]] ||= eval(reference)
     end
   
   end
-end
\ No newline at end of file
+end