# File lib/dragonfly/model/validations.rb, line 9
        def validate_each(model, attribute, attachment)
          if attachment
            property = attachment.send(property_name)
            model.errors.add(attribute, message(property, model)) unless matches?(property)
          end
        rescue RuntimeError => e
          Dragonfly.warn("validation of property #{property_name} of #{attribute} failed with error #{e}")
          model.errors.add(attribute, message(nil, model))
        end