在xml-nokogiri-rails中获取节点的父节点。-Getaparentnodeofanodeinxml-nokogiri-rails

Given the XML data:

考虑到XML数据:

  
   
      540
      ....
   
   
      550
      ....
   
   .
   .
   .
   
      560
      ....
   

If i give 540 i,e id, I should get its parent node that is question1. I'm using nokogiri and tried

如果我给出540 i e id，我应该得到它的父节点，即question1。我正在使用诺科基里并尝试

   @qpid = Qpaper.find(params[:id])
   file = File.open(@qpid.qpaper_file)
   xml = Nokogiri::XML(file)
   quest = xml.search("//id[text()= '#{params[:qno]}']")     //params[:qno] gives id
   render text: quest.parent

It is giving error

这是给错误

  undefined method `parent' for #

Please help me solving it. Thank you.

请帮我解决一下。谢谢你！

1 个解决方案

quest = xml.search("//id[text()= '#{params[:qno]}']")
render text: quest.first.parent