Ruby & Rails 进阶技巧视频教程 02 代码重构减少代码量

https://apidock.com/ruby/Object/tap

重构后:

    def xml_data(data, quiet)
      objects = data.map do |item|
        TencentCos::Model::Object.new.tap do |object|
          return object.VersionId = item.to_s unless item.is_a? Hash

          object.Key = item[:key]

          object.VersionId = item[:VersionId] if item[:version_id]
        end
      end

      deletes = TencentCos::Model::Delete.new.tap do |d|
        d.Quiet = quiet
        d.Object = objects
      end

      deletes.to_xml.to_s
    end

重构前：

    def xml_data(data, quiet)
      objects = data.map do |item|
        if item.is_a? Hash
          object = TencentCos::Model::Object.new
          object.Key = item[:key]

          if item[:version_id]
            object.VersionId = item[:VersionId]
          end

          object
        else
          object = TencentCos::Model::Object.new
          object.VersionId = item.to_s
          object
        end
      end

      deletes = TencentCos::Model::Delete.new

      deletes.Quiet = quiet
      deletes.Object = objects

      deletes.to_xml.to_s
    end