def set_timestamps
        if self.errors.empty?
          self.created_at = DateTime.now.utc if self.respond_to?(:created_at=) && self.created_at.nil?
          self.updated_at = DateTime.now.utc if self.respond_to?(:updated_at=)
        end
      end
def set_timestamps
        if self.errors.empty?
          self.created_at = DateTime.now.utc if self.respond_to?(:created_at=) && self.created_at.nil?
          self.updated_at = DateTime.now.utc if self.respond_to?(:updated_at=)
        end
      end
Updates created_at and updated_at