如何在Rails控制器中格式化JSON? [英] How to format json in rails controller?

问题描述

如何在Rails控制器中格式化json?我通过link_to发送并获取方法params [:cat]，然后我通过父对象(params [:cat])提取了所有子元素，但是如何为我的jqTree设置成json格式呢?因此，它看起来像{label:(这里是params [:cat])，孩子:[{all @ search_trees.id}]}}吗?

How to format json in rails controller? Via link_to i'm sending and get in method params[:cat], then i fetch all childrens via parent (params[:cat]), but how to format this all in json format for my jqTree? So it looks like {label : (here goes params[:cat]), children: [{all @search_trees.id}]} ?

require 'json'
        @search_trees = SearchTree.find(:all, :include => [:designation], :conditions => { :STR_ID_PARENT => params[:cat]})
        #data = "{ label : '10001',  children : [{label : '10111'},{label : '10122'}]  }"
        respond_to do |format|
          format.html # index.html.erb
          format.xml  { render :xml => @search_trees }
          format.json { render :json => data }
        end

我将从这里的长问题中提取一部分问题:

I'll fetch a part of question from my long question here:

如何在Rails应用中正确执行jquery树? /a>

How to correctly do jquery tree in rails app?

她是我的json:

[{"search_tree":{"STR_DES_ID":42275，"STR_ID":10130，"STR_ID_PARENT":10726，"STR_LEVEL":4，"STR_NODE_NR":130，"STR_SORT":621，"STR_TYPE": 1，"designation_id":42275}}，{"search_tree":{"STR_DES_ID":42277，"STR_ID":10132，"STR_ID_PARENT":10726，"STR_LEVEL":4，"STR_NODE_NR":132，"STR_SORT": 620，"STR_TYPE":1，"designation_id":42277}}，{"search_tree":{"STR_DES_ID":43152，"STR_ID":10730，"STR_ID_PARENT":10726，"STR_LEVEL":4，"STR_NODE_NR": 730，"STR_SORT":622，"STR_TYPE":1，"designation_id":43152}}，{"search_tree":{"STR_DES_ID":42209，"STR_ID":12344，"STR_ID_PARENT":10726，"STR_LEVEL": 4，"STR_NODE_NR":2344，"STR_SORT":623，"STR_TYPE":1，"designation_id":42209}}] 我需要这样输出 jqTree-从json创建树数据

[{"search_tree":{"STR_DES_ID":42275,"STR_ID":10130,"STR_ID_PARENT":10726,"STR_LEVEL":4,"STR_NODE_NR":130,"STR_SORT":621,"STR_TYPE":1,"designation_id":42275}},{"search_tree":{"STR_DES_ID":42277,"STR_ID":10132,"STR_ID_PARENT":10726,"STR_LEVEL":4,"STR_NODE_NR":132,"STR_SORT":620,"STR_TYPE":1,"designation_id":42277}},{"search_tree":{"STR_DES_ID":43152,"STR_ID":10730,"STR_ID_PARENT":10726,"STR_LEVEL":4,"STR_NODE_NR":730,"STR_SORT":622,"STR_TYPE":1,"designation_id":43152}},{"search_tree":{"STR_DES_ID":42209,"STR_ID":12344,"STR_ID_PARENT":10726,"STR_LEVEL":4,"STR_NODE_NR":2344,"STR_SORT":623,"STR_TYPE":1,"designation_id":42209}}] i need to output like this jqTree - creating tree data from json

推荐答案

如果要自定义json，可以使用RABL或JBuilder.您可以在此处找到截屏视频: http://railscasts.com/episodes/320-jbuilder?autoplay = true 并在此处: http://railscasts.com/episodes/322- rabl?autoplay = true .

If you want to customize your json, you can use RABL or JBuilder. You will find screencasts here : http://railscasts.com/episodes/320-jbuilder?autoplay=true and here : http://railscasts.com/episodes/322-rabl?autoplay=true.

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