def load! parse_client=Parse::Client.default
      unless @objects
        pointer = @parent_object.pointer
        key = @column_name
        related_class = Parse::Object @raw_hash['className']
        @objects = related_class.find! :where => proc {
          related_to key, pointer
        }
      end
      @objects
    end
def load! parse_client=Parse::Client.default
      unless @objects
        pointer = @parent_object.pointer
        key = @column_name
        related_class = Parse::Object @raw_hash['className']
        @objects = related_class.find! :where => proc {
          related_to key, pointer
        }
      end
      @objects
    end
TODO should be refactored