#69 Markaby in Helper

最新推荐文章于 2017-11-25 11:03:00 发布

原创最新推荐文章于 2017-11-25 11:03:00 发布 · 135 阅读

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本文介绍了一种通过Ruby中的Markaby库简化HTML代码生成的方法。这种方法尤其适用于辅助方法中生成HTML的需求，使得代码更加清晰易读。文章提供了一个具体的示例，展示了如何使用Markaby替代直接在Ruby字符串中编写HTML。

Do you ever need to generate HTML code in a helper method? Placing it directly in Ruby strings is not very pretty. Learn a great way to generate HTML through Markaby in this episode.

def simple_error_messages_for(object_name)
  object = instance_variable_get("@#{object_name}")
  return if object.errors.empty?

  markaby do
    div.error_messages! do
      h2 "#{pluralize(object.errors.count, 'error')} occurred"
      p "There were problems with the following fields:"
      ul do
        object.errors.each_full do |msg|
          li msg
        end
      end
    end
  end
end

def markaby(&block)
  Markaby::Builder.new({}, self, &block)
end