def value_fields_for(source, order=nil)
      fields = self.send(source).fields

      fields = fields.order(order) if order

      fields.each do |i|
        i.set_value_for(self)
      end

      fields
    end
def value_fields_for(source, order=nil)
      fields = self.send(source).fields

      fields = fields.order(order) if order

      fields.each do |i|
        i.set_value_for(self)
      end

      fields
    end
set values for fields
@param source is symbol of relation method contains include Cfror::Fields