Fix Ohm wrong data attributes

lib/weather-model/storer.rb

@@ -83,7 +83,16 @@ module WeatherModel
           super.select{ |x| x.attributes.empty?}.map(&:delete)
           super
         end
-        
+
+        # # Write the dictionary of key-value pairs to the model.
+        def method_missing(method, *args)
+          if method.to_s.end_with? '='
+            self.class.attribute method.to_s.delete('=')
+          else
+            super
+          end
+        end
+
         def self.type_proc type
           case type
           when :integer